{
  "id": "function",
  "name": "Function",
  "displayName": "Function",
  "category": "TOP",
  "subcategory": "Filters",
  "version": "",
  "lastUpdated": "2025-08-08T00:37:44.139Z",
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  "description": "The Function TOP can perform mathematical operations like sin, cos, or exp on the color values of the input image. Different functions can be performed on each color channel. Some functions will take an additional value from the Base, Exponent or Constant Value parameters, and some functions take an additional input value from the second input image.",
  "summary": "The Function TOP can perform mathematical operations like sin, cos, or exp on the color values of the input image. Different functions can be performed on each color channel. Some functions will take ",
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  "usage": "",
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      "description": "From Derivative\n\t\t\n\t\t\n\t\t\n\t\t\n\t\tJump to navigation\n\t\tJump to search\n\t\t\nThe Function  can perform mathematical operations like sin, cos, or exp on the color values of the input image. Different functions can be performed on each color channel. Some functions will take an additional value from the Base, Exponent or Constant Value parameters, and some functions take an additional input value from the second input image.\nFor some functions, you can use the 'Replace Errors' parameter to insert a new value for values that would otherwise be undefined e.g. log(-1)\n\n\nInput - Pass along the input value unchanged\nConstant - Replace the input with the value of the 'Constant' parameter.\nSquare  - Find the square root of the input value i.e. sqrt(x).\nAbsolute Value - Get the absolute value of the input i.e. abs(x).\nSign - Returns -1 if the input value is below 0, 0 if it equals 0, and 1 if it's greater than zero.\nCosine - Returns the cosine of the input. 1\nSine - Returns the sine of the input. 1\nTangent - Returns the tangent of the input. 1\nArccosine - Returns the arccosine of the input i.e. acos(x). 1\nArcsine - Returns the sine of the input i.e. asin(x). 1\nArctan (Input1) - Returns the arctangent of the input i.e. atan(x). 1\nArctan (Input1 / Input2) - Returns the arctangent of input1 over input2 i.e. atan(x,y). 1\nHyperbolic Cosine - Returns the hyperbolic cosine of the input i.e. cosh(x). 1\nHyperbolic Sine - Returns the sine of the input i.e. sinh(x). 1\nHyperbolic Tangent - Returns the tangent of the input i.e. tanh(x). 1\nLog Base 10 - Returns the base 10 logarithm of the input i.e. log10(x).\nLog Base 2 - Returns the base 2 logarithm of the input i.e. log2(x).\nLog Base N - Returns the base N logarithm of the input, where N is set by the 'Base Value' parameter.\nNatural Log - Returns the natural log of the input i.e. ln(x).\nExponent - Returns e to the power of the input i.e. e^x.\nExponent 2 - Returns 2 to the power of the input i.e. 2^x.\nExponent 10 - Returns 10 to the power of the input i.e. 10^x.\nBase Power - Returns the 'Base Value' parameter to the power of x. 2\nInput1 ^ Exponent - Returns the input value to the power of the exponent parameter. 2\nInput1 ^ Input2 - Returns the value of input 1 to the power of input 2. 2\ndB to Power - Converts decibels to power.\nPower to dB - Converts power to decibels. The result will be an error if the value is less than or equal to zero.\ndB to Amplitude - Converts decibels to amplitude.\nAmplitude to dB - Converts amplitude to decibels. The result will be an error if the value is less than or equal to zero.1 The unit of the input for this function is determined by the 'Angle Units' parameter e.g. degrees, radians, etc.\n2 Using a negative exponent i.e. pow(x, -2) will produce an error value since negative exponents are undefined according to the GLSL specifications.\nfunctionTOP_Class\n\nContents\n \n \n\n \n \n \n \n \n \n\n\n\n\n\n  rerange -  - Applies a scale and shift to the input values before the function is calculated i.e. input = (input * rerange2) + rerange1. Note: This feature only affects integer texture formats and is not used on floating point formats.\n\n rerange1 - rerange2 -\n\n  funcrgba -  - Applies the selected function to the R, G, B, and A channels.\n\n input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -\n\n  funcrgb -  - Applies the selected function to the R, G, and B channels.\n\n input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -\n\n  funcr -  - Applies the selected function to the R (red) channel.\n\n input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -\n\n  funcg -  - Applies the selected function to the G (green) channel.\n\n input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -\n\n  funcb -  - Applies the selected function to the B (blue) channel.\n\n input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -\n\n  funca -  - Applies the selected function to the A (alpha) channel.\n\n input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -\n\n  baseval - Supplies the base value for functions like 'Log Base N' and 'Base ^ Input'\n\n\n\n  expval - Supplies the exponent value for the function 'Input ^ Base'.\n\n\n\n  constval - Allows setting the output to a specific constant value using the 'Constant' function.\n\n\n\n  angunit -  - Determines whether the input values are measured in degrees, radians, etc for functions that require an angle input e.g. sine, cosine, etc.\n\n deg - rad - cycle -\n\n  replace - When enabled, output values that would otherwise be invalid will be replaced with the value of the 'Error Value' parameter. For example, when using the log function, the output will be replaced whenever the input value is less than zero.\n\n\n\n  errval - The output value to use when an input error is detected e.g. log(-1).\n\n\n\n\n\n  outputresolution -  - quickly change the resolution of the 's data.\n\n useinput - Uses the input's resolution. eighth - Multiply the input's resolution by that amount. quarter - Multiply the input's resolution by that amount. half - Multiply the input's resolution by that amount. 2x - Multiply the input's resolution by that amount. 4x - Multiply the input's resolution by that amount. 8x - Multiply the input's resolution by that amount. fit - Fits the width and height to the resolution given below, while maintaining the aspect ratio. limit - The width and height are limited to the resolution given below. If one of the dimensions exceeds the given resolution, the width and height will be reduced to fit inside the given limits while maintaining the aspect ratio. custom - Enables the  parameter below, giving direct control over width and height.\n\n  resolution -  - Enabled only when the  parameter is set to Custom . Some Generators like Constant and Ramp do not use inputs and only use this field to determine their size. The drop down menu on the right provides some commonly used resolutions.\n\n resolutionw - resolutionh -\n\n  resmenu - A drop-down menu with some commonly used resolutions.\n\n\n\n  resmult - Uses the Global  Multiplier found in Edit>Preferences>TOPs. This multiplies all the TOPs resolutions by the set amount. This is handy when working on computers with different hardware specifications. If a project is designed on a desktop workstation with lots of graphics memory, a user on a laptop with only 64MB VRAM can set the Global  Multiplier to a value of half or quarter so it runs at an acceptable speed. By checking this checkbox on, this  is affected by the global multiplier.\n\n\n\n  outputaspect -  - Sets the image aspect ratio allowing any textures to be viewed in any size. Watch for unexpected results when compositing TOPs with different aspect ratios. (You can define images with non-square pixels using xres, yres, aspectx, aspecty where xres/yres != aspectx/aspecty.)\n\n useinput - Uses the input's aspect ratio. resolution - Uses the aspect of the image's defined resolution (ie 512x256 would be 2:1), whereby each pixel is square. custom - Lets you explicitly define a custom aspect ratio in the Aspect parameter below.\n\n  aspect -  - Use when Output Aspect parameter is set to Custom Aspect.\n\n aspect1 - aspect2 -\n\n  armenu - A drop-down menu with some commonly used aspect ratios.\n\n\n\n  inputfiltertype -  - This controls pixel filtering on the input image of the .\n\n nearest - Uses nearest pixel or accurate image representation. Images will look jaggy when viewing at any zoom level other than Native . linear - Uses linear filtering between pixels. This is how you get  images in viewers to look good at various zoom levels, especially useful when using any Fill Viewer setting other than Native . mipmap - Uses  mipmap filtering when scaling images. This can be used to reduce artifacts and sparkling in moving/scaling images that have lots of detail.\n\n  fillmode -  - Determine how the  image is displayed in the viewer.\nNOTE:To get an understanding of how TOPs work with images, you will want to set this to Native  as you lay down TOPs when starting out. This will let you see what is actually happening without any automatic viewer resizing.\n\n\n useinput - Uses the same Fill Viewer settings as it's input. fill - Stretches the image to fit the edges of the viewer. width - Stretches image to fit viewer horizontally. height - Stretches image to fit viewer vertically. best - Stretches or squashes image so no part of image is cropped. outside - Stretches or squashes image so image fills viewer while constraining it's proportions. This often leads to part of image getting cropped by viewer. nativeres - Displays the native resolution of the image in the viewer.\n\n  filtertype -  - This controls pixel filtering in the viewers.\n\n nearest - Uses nearest pixel or accurate image representation. Images will look jaggy when viewing at any zoom level other than Native . linear - Uses linear filtering between pixels. Use this to get  images in viewers to look good at various zoom levels, especially useful when using any Fill Viewer setting other than Native . mipmap - Uses  mipmap filtering when scaling images. This can be used to reduce artifacts and sparkling in moving/scaling images that have lots of detail.\n\n  npasses - Duplicates the operation of the  the specified number of times. Making this larger than 1 is essentially the same as taking the output from each pass, and passing it into the first input of the node and repeating the process. Other inputs and parameters remain the same for each pass.\n\n\n\n  chanmask - Allows you to choose which channels (R, G, B, or A) the  will operate on. All channels are selected by default.\n\n\n\n  format -  - Format used to store data for each channel in the image (ie. R, G, B, and A). Refer to Pixel Formats for more information.\n\n useinput - Uses the input's pixel format. rgba8fixed - Uses 8-bit integer values for each channel. srgba8fixed - Uses 8-bit integer values for each channel and stores color in sRGB colorspace. rgba16float - Uses 16-bits per color channel, 64-bits per pixel. rgba32float - Uses 32-bits per color channel, 128-bits per pixels. rgb10a2fixed - Uses 10-bits per color channel and 2-bits for alpha, 32-bits total per pixel. rgba16fixed - Uses 16-bits per color channel, 64-bits total per pixel. rgba11float - A RGB floating point format that has 11 bits for the Red and Green channels, and 10-bits for the Blue , 32-bits total per pixel (therefore the same memory usage as 8-bit RGBA). The Alpha channel in this format will always be 1. Values can go above one, but can't be negative. ie. the range is [0, infinite). rgb16float - rgb32float - mono8fixed - Single channel, where RGB will all have the same value, and Alpha will be 1.0. 8-bits per pixel. mono16fixed - Single channel, where RGB will all have the same value, and Alpha will be 1.0. 16-bits per pixel. mono16float - Single channel, where RGB will all have the same value, and Alpha will be 1.0. 16-bits per pixel. mono32float - Single channel, where RGB will all have the same value, and Alpha will be 1.0. 32-bits per pixel. rg8fixed - A 2 channel format, R and G have values, while B is 0 always and Alpha is 1.0. 8-bits per channel, 16-bits total per pixel. rg16fixed - A 2 channel format, R and G have values, while B is 0 always and Alpha is 1.0. 16-bits per channel, 32-bits total per pixel. rg16float - A 2 channel format, R and G have values, while B is 0 always and Alpha is 1.0. 16-bits per channel, 32-bits total per pixel. rg32float - A 2 channel format, R and G have values, while B is 0 always and Alpha is 1.0. 32-bits per channel, 64-bits total per pixel. a8fixed - An Alpha only format that has 8-bits per channel, 8-bits per pixel. a16fixed - An Alpha only format that has 16-bits per channel, 16-bits per pixel. a16float - An Alpha only format that has 16-bits per channel, 16-bits per pixel. a32float - An Alpha only format that has 32-bits per channel, 32-bits per pixel. monoalpha8fixed - A 2 channel format, one value for RGB and one value for Alpha. 8-bits per channel, 16-bits per pixel. monoalpha16fixed - A 2 channel format, one value for RGB and one value for Alpha. 16-bits per channel, 32-bits per pixel. monoalpha16float - A 2 channel format, one value for RGB and one value for Alpha. 16-bits per channel, 32-bits per pixel. monoalpha32float - A 2 channel format, one value for RGB and one value for Alpha. 32-bits per channel, 64-bits per pixel.\n\n\n\n -\n -\n\n\nExtra Information for the Function  can be accessed via an Info CHOP.\n\n\n\n - Horizontal resolution of the  in pixels. - Vertical resolution of the  in pixels. - Horizontal aspect of the . - Vertical aspect of the . - Depth of 2D or 3D array if this  contains a 2D or 3D texture array. - Total amount of texture memory used by this .\n - Number of times the operator has cooked since the process started. - Duration of the last cook in milliseconds. - Frame number when this operator was last cooked relative to the component timeline. - Frame number when this operator was last cooked relative to the absolute time. - Time in milliseconds at which the operator started cooking in the frame it was cooked. - Time in milliseconds at which the operator finished cooking in the frame it was cooked. - 1 if operator was cooked this frame. - Number of warnings in this operator if any. - Number of errors in this operator if any.\nTouchDesigner Build: Latest\\n2021.100002020.20000before 2020.20000\nTOPs\n• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • \n\nAn Operator Family that creates, composites and modifies images, and reads/writes images and movies to/from files and the network. TOPs run on the graphics card's GPU.\n\n\n\nTouchDesigner is a hierarchy of components. \"root\" is the top-most network in the hierarchy. The Network Path or Path for root is simply /. A typical path is /project1/moviein1.\n\n\n\nThe width and height of an image in pixels. Most TOPs, like the Movie File In TOP can set the image resolution. See Aspect Ratio for the width/height ratio of an image, taking into account non-square pixels.\n\n\n\nThe viewer of a node can be (1) the interior of a node (the Node Viewer), (2) a floating window (RMB->View... on node), or (3) a Pane that graphically shows the results of an operator.\n\n\n\nA CHOP outputs one or more channels, where a channel is simply a sequence of numbers (Samples), representing motion, audio, etc. Channels are passed between CHOPs in TouchDesigner networks. Channels can be Exported to Parameters.\n\n\n\nAn Operator Family which operate on Channels (a sequence of numbers (Samples)) which are used for animation, audio, mathematics, simulation, logic, UI construction, and data streamed from/to devices and protocols.\n\n\n\n\n\n\n\n\nRetrieved from \"https://docs.derivative.ca/index.php?title=Function_TOP&oldid=23894\"\n\t\tCategory: TOPs",
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      "description": "From Derivative\n\t\t\n\t\t\n\t\t\n\t\t\n\t\tJump to navigation\n\t\tJump to search\n\t\t\nThe Function  can perform mathematical operations like sin, cos, or exp on the color values of the input image. Different functions can be performed on each color channel. Some functions will take an additional value from the Base, Exponent or Constant Value parameters, and some functions take an additional input value from the second input image.\nFor some functions, you can use the 'Replace Errors' parameter to insert a new value for values that would otherwise be undefined e.g. log(-1)\n\n\nInput - Pass along the input value unchanged\nConstant - Replace the input with the value of the 'Constant' parameter.\nSquare  - Find the square root of the input value i.e. sqrt(x).\nAbsolute Value - Get the absolute value of the input i.e. abs(x).\nSign - Returns -1 if the input value is below 0, 0 if it equals 0, and 1 if it's greater than zero.\nCosine - Returns the cosine of the input. 1\nSine - Returns the sine of the input. 1\nTangent - Returns the tangent of the input. 1\nArccosine - Returns the arccosine of the input i.e. acos(x). 1\nArcsine - Returns the sine of the input i.e. asin(x). 1\nArctan (Input1) - Returns the arctangent of the input i.e. atan(x). 1\nArctan (Input1 / Input2) - Returns the arctangent of input1 over input2 i.e. atan(x,y). 1\nHyperbolic Cosine - Returns the hyperbolic cosine of the input i.e. cosh(x). 1\nHyperbolic Sine - Returns the sine of the input i.e. sinh(x). 1\nHyperbolic Tangent - Returns the tangent of the input i.e. tanh(x). 1\nLog Base 10 - Returns the base 10 logarithm of the input i.e. log10(x).\nLog Base 2 - Returns the base 2 logarithm of the input i.e. log2(x).\nLog Base N - Returns the base N logarithm of the input, where N is set by the 'Base Value' parameter.\nNatural Log - Returns the natural log of the input i.e. ln(x).\nExponent - Returns e to the power of the input i.e. e^x.\nExponent 2 - Returns 2 to the power of the input i.e. 2^x.\nExponent 10 - Returns 10 to the power of the input i.e. 10^x.\nBase Power - Returns the 'Base Value' parameter to the power of x. 2\nInput1 ^ Exponent - Returns the input value to the power of the exponent parameter. 2\nInput1 ^ Input2 - Returns the value of input 1 to the power of input 2. 2\ndB to Power - Converts decibels to power.\nPower to dB - Converts power to decibels. The result will be an error if the value is less than or equal to zero.\ndB to Amplitude - Converts decibels to amplitude.\nAmplitude to dB - Converts amplitude to decibels. The result will be an error if the value is less than or equal to zero.1 The unit of the input for this function is determined by the 'Angle Units' parameter e.g. degrees, radians, etc.\n2 Using a negative exponent i.e. pow(x, -2) will produce an error value since negative exponents are undefined according to the GLSL specifications.\nfunctionTOP_Class\n\nContents\n \n \n\n \n \n \n \n \n \n\n\n\n\n\n  rerange -  - Applies a scale and shift to the input values before the function is calculated i.e. input = (input * rerange2) + rerange1. Note: This feature only affects integer texture formats and is not used on floating point formats.\n\n rerange1 - rerange2 -\n\n  funcrgba -  - Applies the selected function to the R, G, B, and A channels.\n\n input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -\n\n  funcrgb -  - Applies the selected function to the R, G, and B channels.\n\n input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -\n\n  funcr -  - Applies the selected function to the R (red) channel.\n\n input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -\n\n  funcg -  - Applies the selected function to the G (green) channel.\n\n input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -\n\n  funcb -  - Applies the selected function to the B (blue) channel.\n\n input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -\n\n  funca -  - Applies the selected function to the A (alpha) channel.\n\n input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -\n\n  baseval - Supplies the base value for functions like 'Log Base N' and 'Base ^ Input'\n\n\n\n  expval - Supplies the exponent value for the function 'Input ^ Base'.\n\n\n\n  constval - Allows setting the output to a specific constant value using the 'Constant' function.\n\n\n\n  angunit -  - Determines whether the input values are measured in degrees, radians, etc for functions that require an angle input e.g. sine, cosine, etc.\n\n deg - rad - cycle -\n\n  replace - When enabled, output values that would otherwise be invalid will be replaced with the value of the 'Error Value' parameter. For example, when using the log function, the output will be replaced whenever the input value is less than zero.\n\n\n\n  errval - The output value to use when an input error is detected e.g. log(-1).\n\n\n\n\n\n  outputresolution -  - quickly change the resolution of the 's data.\n\n useinput - Uses the input's resolution. eighth - Multiply the input's resolution by that amount. quarter - Multiply the input's resolution by that amount. half - Multiply the input's resolution by that amount. 2x - Multiply the input's resolution by that amount. 4x - Multiply the input's resolution by that amount. 8x - Multiply the input's resolution by that amount. fit - Fits the width and height to the resolution given below, while maintaining the aspect ratio. limit - The width and height are limited to the resolution given below. If one of the dimensions exceeds the given resolution, the width and height will be reduced to fit inside the given limits while maintaining the aspect ratio. custom - Enables the  parameter below, giving direct control over width and height.\n\n  resolution -  - Enabled only when the  parameter is set to Custom . Some Generators like Constant and Ramp do not use inputs and only use this field to determine their size. The drop down menu on the right provides some commonly used resolutions.\n\n resolutionw - resolutionh -\n\n  resmenu - A drop-down menu with some commonly used resolutions.\n\n\n\n  resmult - Uses the Global  Multiplier found in Edit>Preferences>TOPs. This multiplies all the TOPs resolutions by the set amount. This is handy when working on computers with different hardware specifications. If a project is designed on a desktop workstation with lots of graphics memory, a user on a laptop with only 64MB VRAM can set the Global  Multiplier to a value of half or quarter so it runs at an acceptable speed. By checking this checkbox on, this  is affected by the global multiplier.\n\n\n\n  outputaspect -  - Sets the image aspect ratio allowing any textures to be viewed in any size. Watch for unexpected results when compositing TOPs with different aspect ratios. (You can define images with non-square pixels using xres, yres, aspectx, aspecty where xres/yres != aspectx/aspecty.)\n\n useinput - Uses the input's aspect ratio. resolution - Uses the aspect of the image's defined resolution (ie 512x256 would be 2:1), whereby each pixel is square. custom - Lets you explicitly define a custom aspect ratio in the Aspect parameter below.\n\n  aspect -  - Use when Output Aspect parameter is set to Custom Aspect.\n\n aspect1 - aspect2 -\n\n  armenu - A drop-down menu with some commonly used aspect ratios.\n\n\n\n  inputfiltertype -  - This controls pixel filtering on the input image of the .\n\n nearest - Uses nearest pixel or accurate image representation. Images will look jaggy when viewing at any zoom level other than Native . linear - Uses linear filtering between pixels. This is how you get  images in viewers to look good at various zoom levels, especially useful when using any Fill Viewer setting other than Native . mipmap - Uses  mipmap filtering when scaling images. This can be used to reduce artifacts and sparkling in moving/scaling images that have lots of detail.\n\n  fillmode -  - Determine how the  image is displayed in the viewer.\nNOTE:To get an understanding of how TOPs work with images, you will want to set this to Native  as you lay down TOPs when starting out. This will let you see what is actually happening without any automatic viewer resizing.\n\n\n useinput - Uses the same Fill Viewer settings as it's input. fill - Stretches the image to fit the edges of the viewer. width - Stretches image to fit viewer horizontally. height - Stretches image to fit viewer vertically. best - Stretches or squashes image so no part of image is cropped. outside - Stretches or squashes image so image fills viewer while constraining it's proportions. This often leads to part of image getting cropped by viewer. nativeres - Displays the native resolution of the image in the viewer.\n\n  filtertype -  - This controls pixel filtering in the viewers.\n\n nearest - Uses nearest pixel or accurate image representation. Images will look jaggy when viewing at any zoom level other than Native . linear - Uses linear filtering between pixels. Use this to get  images in viewers to look good at various zoom levels, especially useful when using any Fill Viewer setting other than Native . mipmap - Uses  mipmap filtering when scaling images. This can be used to reduce artifacts and sparkling in moving/scaling images that have lots of detail.\n\n  npasses - Duplicates the operation of the  the specified number of times. Making this larger than 1 is essentially the same as taking the output from each pass, and passing it into the first input of the node and repeating the process. Other inputs and parameters remain the same for each pass.\n\n\n\n  chanmask - Allows you to choose which channels (R, G, B, or A) the  will operate on. All channels are selected by default.\n\n\n\n  format -  - Format used to store data for each channel in the image (ie. R, G, B, and A). Refer to Pixel Formats for more information.\n\n useinput - Uses the input's pixel format. rgba8fixed - Uses 8-bit integer values for each channel. srgba8fixed - Uses 8-bit integer values for each channel and stores color in sRGB colorspace. rgba16float - Uses 16-bits per color channel, 64-bits per pixel. rgba32float - Uses 32-bits per color channel, 128-bits per pixels. rgb10a2fixed - Uses 10-bits per color channel and 2-bits for alpha, 32-bits total per pixel. rgba16fixed - Uses 16-bits per color channel, 64-bits total per pixel. rgba11float - A RGB floating point format that has 11 bits for the Red and Green channels, and 10-bits for the Blue , 32-bits total per pixel (therefore the same memory usage as 8-bit RGBA). The Alpha channel in this format will always be 1. Values can go above one, but can't be negative. ie. the range is [0, infinite). rgb16float - rgb32float - mono8fixed - Single channel, where RGB will all have the same value, and Alpha will be 1.0. 8-bits per pixel. mono16fixed - Single channel, where RGB will all have the same value, and Alpha will be 1.0. 16-bits per pixel. mono16float - Single channel, where RGB will all have the same value, and Alpha will be 1.0. 16-bits per pixel. mono32float - Single channel, where RGB will all have the same value, and Alpha will be 1.0. 32-bits per pixel. rg8fixed - A 2 channel format, R and G have values, while B is 0 always and Alpha is 1.0. 8-bits per channel, 16-bits total per pixel. rg16fixed - A 2 channel format, R and G have values, while B is 0 always and Alpha is 1.0. 16-bits per channel, 32-bits total per pixel. rg16float - A 2 channel format, R and G have values, while B is 0 always and Alpha is 1.0. 16-bits per channel, 32-bits total per pixel. rg32float - A 2 channel format, R and G have values, while B is 0 always and Alpha is 1.0. 32-bits per channel, 64-bits total per pixel. a8fixed - An Alpha only format that has 8-bits per channel, 8-bits per pixel. a16fixed - An Alpha only format that has 16-bits per channel, 16-bits per pixel. a16float - An Alpha only format that has 16-bits per channel, 16-bits per pixel. a32float - An Alpha only format that has 32-bits per channel, 32-bits per pixel. monoalpha8fixed - A 2 channel format, one value for RGB and one value for Alpha. 8-bits per channel, 16-bits per pixel. monoalpha16fixed - A 2 channel format, one value for RGB and one value for Alpha. 16-bits per channel, 32-bits per pixel. monoalpha16float - A 2 channel format, one value for RGB and one value for Alpha. 16-bits per channel, 32-bits per pixel. monoalpha32float - A 2 channel format, one value for RGB and one value for Alpha. 32-bits per channel, 64-bits per pixel.\n\n\n\n -\n -\n\n\nExtra Information for the Function  can be accessed via an Info CHOP.\n\n\n\n - Horizontal resolution of the  in pixels. - Vertical resolution of the  in pixels. - Horizontal aspect of the . - Vertical aspect of the . - Depth of 2D or 3D array if this  contains a 2D or 3D texture array. - Total amount of texture memory used by this .\n - Number of times the operator has cooked since the process started. - Duration of the last cook in milliseconds. - Frame number when this operator was last cooked relative to the component timeline. - Frame number when this operator was last cooked relative to the absolute time. - Time in milliseconds at which the operator started cooking in the frame it was cooked. - Time in milliseconds at which the operator finished cooking in the frame it was cooked. - 1 if operator was cooked this frame. - Number of warnings in this operator if any. - Number of errors in this operator if any.\nTouchDesigner Build: Latest\\n2021.100002020.20000before 2020.20000\nTOPs\n• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • \n\nAn Operator Family that creates, composites and modifies images, and reads/writes images and movies to/from files and the network. TOPs run on the graphics card's GPU.\n\n\n\nTouchDesigner is a hierarchy of components. \"root\" is the top-most network in the hierarchy. The Network Path or Path for root is simply /. A typical path is /project1/moviein1.\n\n\n\nThe width and height of an image in pixels. Most TOPs, like the Movie File In TOP can set the image resolution. See Aspect Ratio for the width/height ratio of an image, taking into account non-square pixels.\n\n\n\nThe viewer of a node can be (1) the interior of a node (the Node Viewer), (2) a floating window (RMB->View... on node), or (3) a Pane that graphically shows the results of an operator.\n\n\n\nA CHOP outputs one or more channels, where a channel is simply a sequence of numbers (Samples), representing motion, audio, etc. Channels are passed between CHOPs in TouchDesigner networks. Channels can be Exported to Parameters.\n\n\n\nAn Operator Family which operate on Channels (a sequence of numbers (Samples)) which are used for animation, audio, mathematics, simulation, logic, UI construction, and data streamed from/to devices and protocols.\n\n\n\n\n\n\n\n\nRetrieved from \"https://docs.derivative.ca/index.php?title=Function_TOP&oldid=23894\"\n\t\tCategory: TOPs",
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      "description": "The Function  can perform mathematical operations like sin, cos, or exp on the color values of the input image. Different functions can be performed on each color channel. Some functions will take an additional value from the Base, Exponent or Constant Value parameters, and some functions take an additional input value from the second input image.\nFor some functions, you can use the 'Replace Errors' parameter to insert a new value for values that would otherwise be undefined e.g. log(-1)\n\n\nInput - Pass along the input value unchanged\nConstant - Replace the input with the value of the 'Constant' parameter.\nSquare  - Find the square root of the input value i.e. sqrt(x).\nAbsolute Value - Get the absolute value of the input i.e. abs(x).\nSign - Returns -1 if the input value is below 0, 0 if it equals 0, and 1 if it's greater than zero.\nCosine - Returns the cosine of the input. 1\nSine - Returns the sine of the input. 1\nTangent - Returns the tangent of the input. 1\nArccosine - Returns the arccosine of the input i.e. acos(x). 1\nArcsine - Returns the sine of the input i.e. asin(x). 1\nArctan (Input1) - Returns the arctangent of the input i.e. atan(x). 1\nArctan (Input1 / Input2) - Returns the arctangent of input1 over input2 i.e. atan(x,y). 1\nHyperbolic Cosine - Returns the hyperbolic cosine of the input i.e. cosh(x). 1\nHyperbolic Sine - Returns the sine of the input i.e. sinh(x). 1\nHyperbolic Tangent - Returns the tangent of the input i.e. tanh(x). 1\nLog Base 10 - Returns the base 10 logarithm of the input i.e. log10(x).\nLog Base 2 - Returns the base 2 logarithm of the input i.e. log2(x).\nLog Base N - Returns the base N logarithm of the input, where N is set by the 'Base Value' parameter.\nNatural Log - Returns the natural log of the input i.e. ln(x).\nExponent - Returns e to the power of the input i.e. e^x.\nExponent 2 - Returns 2 to the power of the input i.e. 2^x.\nExponent 10 - Returns 10 to the power of the input i.e. 10^x.\nBase Power - Returns the 'Base Value' parameter to the power of x. 2\nInput1 ^ Exponent - Returns the input value to the power of the exponent parameter. 2\nInput1 ^ Input2 - Returns the value of input 1 to the power of input 2. 2\ndB to Power - Converts decibels to power.\nPower to dB - Converts power to decibels. The result will be an error if the value is less than or equal to zero.\ndB to Amplitude - Converts decibels to amplitude.\nAmplitude to dB - Converts amplitude to decibels. The result will be an error if the value is less than or equal to zero.1 The unit of the input for this function is determined by the 'Angle Units' parameter e.g. degrees, radians, etc.\n2 Using a negative exponent i.e. pow(x, -2) will produce an error value since negative exponents are undefined according to the GLSL specifications.\nfunctionTOP_Class\n\nContents\n \n \n\n \n \n \n \n \n \n\n\n\n\n\n  rerange -  - Applies a scale and shift to the input values before the function is calculated i.e. input = (input * rerange2) + rerange1. Note: This feature only affects integer texture formats and is not used on floating point formats.\n\n rerange1 - rerange2 -\n\n  funcrgba -  - Applies the selected function to the R, G, B, and A channels.\n\n input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -\n\n  funcrgb -  - Applies the selected function to the R, G, and B channels.\n\n input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -\n\n  funcr -  - Applies the selected function to the R (red) channel.\n\n input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -\n\n  funcg -  - Applies the selected function to the G (green) channel.\n\n input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -\n\n  funcb -  - Applies the selected function to the B (blue) channel.\n\n input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -\n\n  funca -  - Applies the selected function to the A (alpha) channel.\n\n input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -\n\n  baseval - Supplies the base value for functions like 'Log Base N' and 'Base ^ Input'\n\n\n\n  expval - Supplies the exponent value for the function 'Input ^ Base'.\n\n\n\n  constval - Allows setting the output to a specific constant value using the 'Constant' function.\n\n\n\n  angunit -  - Determines whether the input values are measured in degrees, radians, etc for functions that require an angle input e.g. sine, cosine, etc.\n\n deg - rad - cycle -\n\n  replace - When enabled, output values that would otherwise be invalid will be replaced with the value of the 'Error Value' parameter. For example, when using the log function, the output will be replaced whenever the input value is less than zero.\n\n\n\n  errval - The output value to use when an input error is detected e.g. log(-1).\n\n\n\n\n\n  outputresolution -  - quickly change the resolution of the 's data.\n\n useinput - Uses the input's resolution. eighth - Multiply the input's resolution by that amount. quarter - Multiply the input's resolution by that amount. half - Multiply the input's resolution by that amount. 2x - Multiply the input's resolution by that amount. 4x - Multiply the input's resolution by that amount. 8x - Multiply the input's resolution by that amount. fit - Fits the width and height to the resolution given below, while maintaining the aspect ratio. limit - The width and height are limited to the resolution given below. If one of the dimensions exceeds the given resolution, the width and height will be reduced to fit inside the given limits while maintaining the aspect ratio. custom - Enables the  parameter below, giving direct control over width and height.\n\n  resolution -  - Enabled only when the  parameter is set to Custom . Some Generators like Constant and Ramp do not use inputs and only use this field to determine their size. The drop down menu on the right provides some commonly used resolutions.\n\n resolutionw - resolutionh -\n\n  resmenu - A drop-down menu with some commonly used resolutions.\n\n\n\n  resmult - Uses the Global  Multiplier found in Edit>Preferences>TOPs. This multiplies all the TOPs resolutions by the set amount. This is handy when working on computers with different hardware specifications. If a project is designed on a desktop workstation with lots of graphics memory, a user on a laptop with only 64MB VRAM can set the Global  Multiplier to a value of half or quarter so it runs at an acceptable speed. By checking this checkbox on, this  is affected by the global multiplier.\n\n\n\n  outputaspect -  - Sets the image aspect ratio allowing any textures to be viewed in any size. Watch for unexpected results when compositing TOPs with different aspect ratios. (You can define images with non-square pixels using xres, yres, aspectx, aspecty where xres/yres != aspectx/aspecty.)\n\n useinput - Uses the input's aspect ratio. resolution - Uses the aspect of the image's defined resolution (ie 512x256 would be 2:1), whereby each pixel is square. custom - Lets you explicitly define a custom aspect ratio in the Aspect parameter below.\n\n  aspect -  - Use when Output Aspect parameter is set to Custom Aspect.\n\n aspect1 - aspect2 -\n\n  armenu - A drop-down menu with some commonly used aspect ratios.\n\n\n\n  inputfiltertype -  - This controls pixel filtering on the input image of the .\n\n nearest - Uses nearest pixel or accurate image representation. Images will look jaggy when viewing at any zoom level other than Native . linear - Uses linear filtering between pixels. This is how you get  images in viewers to look good at various zoom levels, especially useful when using any Fill Viewer setting other than Native . mipmap - Uses  mipmap filtering when scaling images. This can be used to reduce artifacts and sparkling in moving/scaling images that have lots of detail.\n\n  fillmode -  - Determine how the  image is displayed in the viewer.\nNOTE:To get an understanding of how TOPs work with images, you will want to set this to Native  as you lay down TOPs when starting out. This will let you see what is actually happening without any automatic viewer resizing.\n\n\n useinput - Uses the same Fill Viewer settings as it's input. fill - Stretches the image to fit the edges of the viewer. width - Stretches image to fit viewer horizontally. height - Stretches image to fit viewer vertically. best - Stretches or squashes image so no part of image is cropped. outside - Stretches or squashes image so image fills viewer while constraining it's proportions. This often leads to part of image getting cropped by viewer. nativeres - Displays the native resolution of the image in the viewer.\n\n  filtertype -  - This controls pixel filtering in the viewers.\n\n nearest - Uses nearest pixel or accurate image representation. Images will look jaggy when viewing at any zoom level other than Native . linear - Uses linear filtering between pixels. Use this to get  images in viewers to look good at various zoom levels, especially useful when using any Fill Viewer setting other than Native . mipmap - Uses  mipmap filtering when scaling images. This can be used to reduce artifacts and sparkling in moving/scaling images that have lots of detail.\n\n  npasses - Duplicates the operation of the  the specified number of times. Making this larger than 1 is essentially the same as taking the output from each pass, and passing it into the first input of the node and repeating the process. Other inputs and parameters remain the same for each pass.\n\n\n\n  chanmask - Allows you to choose which channels (R, G, B, or A) the  will operate on. All channels are selected by default.\n\n\n\n  format -  - Format used to store data for each channel in the image (ie. R, G, B, and A). Refer to Pixel Formats for more information.\n\n useinput - Uses the input's pixel format. rgba8fixed - Uses 8-bit integer values for each channel. srgba8fixed - Uses 8-bit integer values for each channel and stores color in sRGB colorspace. rgba16float - Uses 16-bits per color channel, 64-bits per pixel. rgba32float - Uses 32-bits per color channel, 128-bits per pixels. rgb10a2fixed - Uses 10-bits per color channel and 2-bits for alpha, 32-bits total per pixel. rgba16fixed - Uses 16-bits per color channel, 64-bits total per pixel. rgba11float - A RGB floating point format that has 11 bits for the Red and Green channels, and 10-bits for the Blue , 32-bits total per pixel (therefore the same memory usage as 8-bit RGBA). The Alpha channel in this format will always be 1. Values can go above one, but can't be negative. ie. the range is [0, infinite). rgb16float - rgb32float - mono8fixed - Single channel, where RGB will all have the same value, and Alpha will be 1.0. 8-bits per pixel. mono16fixed - Single channel, where RGB will all have the same value, and Alpha will be 1.0. 16-bits per pixel. mono16float - Single channel, where RGB will all have the same value, and Alpha will be 1.0. 16-bits per pixel. mono32float - Single channel, where RGB will all have the same value, and Alpha will be 1.0. 32-bits per pixel. rg8fixed - A 2 channel format, R and G have values, while B is 0 always and Alpha is 1.0. 8-bits per channel, 16-bits total per pixel. rg16fixed - A 2 channel format, R and G have values, while B is 0 always and Alpha is 1.0. 16-bits per channel, 32-bits total per pixel. rg16float - A 2 channel format, R and G have values, while B is 0 always and Alpha is 1.0. 16-bits per channel, 32-bits total per pixel. rg32float - A 2 channel format, R and G have values, while B is 0 always and Alpha is 1.0. 32-bits per channel, 64-bits total per pixel. a8fixed - An Alpha only format that has 8-bits per channel, 8-bits per pixel. a16fixed - An Alpha only format that has 16-bits per channel, 16-bits per pixel. a16float - An Alpha only format that has 16-bits per channel, 16-bits per pixel. a32float - An Alpha only format that has 32-bits per channel, 32-bits per pixel. monoalpha8fixed - A 2 channel format, one value for RGB and one value for Alpha. 8-bits per channel, 16-bits per pixel. monoalpha16fixed - A 2 channel format, one value for RGB and one value for Alpha. 16-bits per channel, 32-bits per pixel. monoalpha16float - A 2 channel format, one value for RGB and one value for Alpha. 16-bits per channel, 32-bits per pixel. monoalpha32float - A 2 channel format, one value for RGB and one value for Alpha. 32-bits per channel, 64-bits per pixel.\n\n\n\n -\n -\n\n\nExtra Information for the Function  can be accessed via an Info CHOP.\n\n\n\n - Horizontal resolution of the  in pixels. - Vertical resolution of the  in pixels. - Horizontal aspect of the . - Vertical aspect of the . - Depth of 2D or 3D array if this  contains a 2D or 3D texture array. - Total amount of texture memory used by this .\n - Number of times the operator has cooked since the process started. - Duration of the last cook in milliseconds. - Frame number when this operator was last cooked relative to the component timeline. - Frame number when this operator was last cooked relative to the absolute time. - Time in milliseconds at which the operator started cooking in the frame it was cooked. - Time in milliseconds at which the operator finished cooking in the frame it was cooked. - 1 if operator was cooked this frame. - Number of warnings in this operator if any. - Number of errors in this operator if any.\nTouchDesigner Build: Latest\\n2021.100002020.20000before 2020.20000\nTOPs\n• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • \n\nAn Operator Family that creates, composites and modifies images, and reads/writes images and movies to/from files and the network. TOPs run on the graphics card's GPU.\n\n\n\nTouchDesigner is a hierarchy of components. \"root\" is the top-most network in the hierarchy. The Network Path or Path for root is simply /. A typical path is /project1/moviein1.\n\n\n\nThe width and height of an image in pixels. Most TOPs, like the Movie File In TOP can set the image resolution. See Aspect Ratio for the width/height ratio of an image, taking into account non-square pixels.\n\n\n\nThe viewer of a node can be (1) the interior of a node (the Node Viewer), (2) a floating window (RMB->View... on node), or (3) a Pane that graphically shows the results of an operator.\n\n\n\nA CHOP outputs one or more channels, where a channel is simply a sequence of numbers (Samples), representing motion, audio, etc. Channels are passed between CHOPs in TouchDesigner networks. Channels can be Exported to Parameters.\n\n\n\nAn Operator Family which operate on Channels (a sequence of numbers (Samples)) which are used for animation, audio, mathematics, simulation, logic, UI construction, and data streamed from/to devices and protocols.\n\n\n\n\n\n\n\n\nRetrieved from \"https://docs.derivative.ca/index.php?title=Function_TOP&oldid=23894\"",
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      "id": null,
      "name": "Re-Range Integers",
      "label": "Re-Range Integers",
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      "type": "float",
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      "description": "rerange -  - Applies a scale and shift to the input values before the function is calculated i.e. input = (input * rerange2) + rerange1. Note: This feature only affects integer texture formats and is not used on floating point formats.\n\n rerange1 - rerange2 -",
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      "name": "Re-Range Integers",
      "label": "Re-Range Integers",
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      "type": "float",
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      "description": "rerange1 - rerange2 -",
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      "name": "Function RGBA",
      "label": "Function RGBA",
      "group": "General",
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      "type": "float",
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      "description": "funcrgba -  - Applies the selected function to the R, G, B, and A channels.\n\n input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -",
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      "name": "x                Input",
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      "description": "input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -",
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      "name": "Function RGB",
      "label": "Function RGB",
      "group": "General",
      "page": "",
      "type": "float",
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      "description": "funcrgb -  - Applies the selected function to the R, G, and B channels.\n\n input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -",
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      "name": "Function R",
      "label": "Function R",
      "group": "General",
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      "description": "funcr -  - Applies the selected function to the R (red) channel.\n\n input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -",
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      "description": "input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -",
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      "name": "Function G",
      "label": "Function G",
      "group": "General",
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      "description": "funcg -  - Applies the selected function to the G (green) channel.\n\n input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -",
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      "name": "Function B",
      "label": "Function B",
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      "description": "funcb -  - Applies the selected function to the B (blue) channel.\n\n input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -",
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      "description": "input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -",
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      "id": null,
      "name": "Function A",
      "label": "Function A",
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      "description": "funca -  - Applies the selected function to the A (alpha) channel.\n\n input - constant - sqrt - abs - sign - cos - sin - tan - acos - asin - atan - atan2 - cosh - sinh - tanh - log10 - log2 - logn - ln - exp - exp2 - exp10 - powb - powe - powxy - dbtopow - powtodb - dbtoamp - amptodb -",
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      "description": "baseval - Supplies the base value for functions like 'Log Base N' and 'Base ^ Input'",
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      "description": "angunit -  - Determines whether the input values are measured in degrees, radians, etc for functions that require an angle input e.g. sine, cosine, etc.\n\n deg - rad - cycle -",
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      "description": "useinput - Uses the input's resolution. eighth - Multiply the input's resolution by that amount. quarter - Multiply the input's resolution by that amount. half - Multiply the input's resolution by that amount. 2x - Multiply the input's resolution by that amount. 4x - Multiply the input's resolution by that amount. 8x - Multiply the input's resolution by that amount. fit - Fits the width and height to the resolution given below, while maintaining the aspect ratio. limit - The width and height are limited to the resolution given below. If one of the dimensions exceeds the given resolution, the width and height will be reduced to fit inside the given limits while maintaining the aspect ratio. custom - Enables the  parameter below, giving direct control over width and height.",
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      "description": "resolution -  - Enabled only when the  parameter is set to Custom . Some Generators like Constant and Ramp do not use inputs and only use this field to determine their size. The drop down menu on the right provides some commonly used resolutions.\n\n resolutionw - resolutionh -",
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      "name": "Aspect Menu",
      "label": "Aspect Menu",
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      "description": "armenu - A drop-down menu with some commonly used aspect ratios.",
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      "name": "Input Smoothness",
      "label": "Input Smoothness",
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      "description": "inputfiltertype -  - This controls pixel filtering on the input image of the .\n\n nearest - Uses nearest pixel or accurate image representation. Images will look jaggy when viewing at any zoom level other than Native . linear - Uses linear filtering between pixels. This is how you get  images in viewers to look good at various zoom levels, especially useful when using any Fill Viewer setting other than Native . mipmap - Uses  mipmap filtering when scaling images. This can be used to reduce artifacts and sparkling in moving/scaling images that have lots of detail.",
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      "description": "nearest - Uses nearest pixel or accurate image representation. Images will look jaggy when viewing at any zoom level other than Native . linear - Uses linear filtering between pixels. This is how you get  images in viewers to look good at various zoom levels, especially useful when using any Fill Viewer setting other than Native . mipmap - Uses  mipmap filtering when scaling images. This can be used to reduce artifacts and sparkling in moving/scaling images that have lots of detail.",
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      "description": "npasses - Duplicates the operation of the  the specified number of times. Making this larger than 1 is essentially the same as taking the output from each pass, and passing it into the first input of the node and repeating the process. Other inputs and parameters remain the same for each pass.",
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      "description": "chanmask - Allows you to choose which channels (R, G, B, or A) the  will operate on. All channels are selected by default.",
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      "description": "format -  - Format used to store data for each channel in the image (ie. R, G, B, and A). Refer to Pixel Formats for more information.\n\n useinput - Uses the input's pixel format. rgba8fixed - Uses 8-bit integer values for each channel. srgba8fixed - Uses 8-bit integer values for each channel and stores color in sRGB colorspace. rgba16float - Uses 16-bits per color channel, 64-bits per pixel. rgba32float - Uses 32-bits per color channel, 128-bits per pixels. rgb10a2fixed - Uses 10-bits per color channel and 2-bits for alpha, 32-bits total per pixel. rgba16fixed - Uses 16-bits per color channel, 64-bits total per pixel. rgba11float - A RGB floating point format that has 11 bits for the Red and Green channels, and 10-bits for the Blue , 32-bits total per pixel (therefore the same memory usage as 8-bit RGBA). The Alpha channel in this format will always be 1. Values can go above one, but can't be negative. ie. the range is [0, infinite). rgb16float - rgb32float - mono8fixed - Single channel, where RGB will all have the same value, and Alpha will be 1.0. 8-bits per pixel. mono16fixed - Single channel, where RGB will all have the same value, and Alpha will be 1.0. 16-bits per pixel. mono16float - Single channel, where RGB will all have the same value, and Alpha will be 1.0. 16-bits per pixel. mono32float - Single channel, where RGB will all have the same value, and Alpha will be 1.0. 32-bits per pixel. rg8fixed - A 2 channel format, R and G have values, while B is 0 always and Alpha is 1.0. 8-bits per channel, 16-bits total per pixel. rg16fixed - A 2 channel format, R and G have values, while B is 0 always and Alpha is 1.0. 16-bits per channel, 32-bits total per pixel. rg16float - A 2 channel format, R and G have values, while B is 0 always and Alpha is 1.0. 16-bits per channel, 32-bits total per pixel. rg32float - A 2 channel format, R and G have values, while B is 0 always and Alpha is 1.0. 32-bits per channel, 64-bits total per pixel. a8fixed - An Alpha only format that has 8-bits per channel, 8-bits per pixel. a16fixed - An Alpha only format that has 16-bits per channel, 16-bits per pixel. a16float - An Alpha only format that has 16-bits per channel, 16-bits per pixel. a32float - An Alpha only format that has 32-bits per channel, 32-bits per pixel. monoalpha8fixed - A 2 channel format, one value for RGB and one value for Alpha. 8-bits per channel, 16-bits per pixel. monoalpha16fixed - A 2 channel format, one value for RGB and one value for Alpha. 16-bits per channel, 32-bits per pixel. monoalpha16float - A 2 channel format, one value for RGB and one value for Alpha. 16-bits per channel, 32-bits per pixel. monoalpha32float - A 2 channel format, one value for RGB and one value for Alpha. 32-bits per channel, 64-bits per pixel.",
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