@bottobot/td-mcp
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TouchDesigner MCP Server v2.8.0 - 21 MCP tools, 629 operators with clean parameter data, 69 Python API classes, 14 tutorials, 32 workflow patterns. Includes version system, experimental techniques KB, core tool enhancements, and experimental build support
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{
"id": "noise_top",
"name": "Noise TOP",
"displayName": "Noise TOP",
"category": "TOP",
"subcategory": "Generators",
"version": "",
"lastUpdated": "2025-08-07T07:50:04.793Z",
"sourceFile": "C:\\Program Files\\Derivative\\TouchDesigner\\Samples\\Learn\\OfflineHelp\\https.docs.derivative.ca\\Noise_TOP.htm",
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"description": "The Noise TOP generates a variety of noise patterns including perlin, simplex, sparse, alligator and random. Some types of noise run on the CPU, while others are calculated on the GPU. The ones that are calculated on the GPU will have GPU in their name.",
"summary": "The Noise TOP generates a variety of noise patterns including perlin, simplex, sparse, alligator and random. Some types of noise run on the CPU, while others are calculated on the GPU. The ones that a",
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{
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"name": "Type",
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"description": "The noise function used to generate noise.",
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"name": "Perlin 2D (GPU)",
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"description": "Perlin 2D (GPU) parameter.",
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"description": "seed - Any number, integer or non-integer, which starts the random number generator. Each number gives completely different noise patterns, but with similar characteristics.",
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"description": "period - The approximate separation between peaks of a noise cycle. It is expressed in Units. Increasing the period stretches the noise pattern out.\t\nPeriod is the opposite of frequency. If the period is 2 seconds, the base frequency is 0.5 cycles per second, or 0.5Hz for short. Hz refers to Hertz, the electrical and audio engineer of the 19th century, not the car guy.\t\t\t\nIf the Type is set to Random, setting this to zero will produce completely random noise. Otherwise, the period should be greater than zero.",
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"description": "harmon - The number of higher frequency components to layer on top of the base frequency. The higher this number, the bumpier the noise will be (as long as roughness is not set to zero). 0 harmonics give the base shape.",
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"description": "spread - The factor by which the frequency of the harmonics are increased. It is normally 2. A spread of 3 and a base frequency of 0.1Hz will produce harmonics at 0.3Hz, 0.9Hz, 2.7Hz, etc.. This parameter is only valid for the Harmonic Summation type.",
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"description": "gain - Amount of the Harmonic Gain layered on top of the base frequency.",
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"description": "rough - Controls the effect of the higher frequency noise. When roughness is zero, all harmonics above the base frequency have no effect. At one, all harmonics are equal in amplitude to the base frequency. When roughness is between one and zero, the amplitude of higher harmonics drops off exponentially from the base frequency.\t\nThe default roughness is 0.5. This means the amplitude of the first harmonic is 0.5 of the base frequency, the second is 0.25, the third is 0.125. The harmonics are added to the base to give the final shape. The Harmonics parameter and the Roughness parameter must both be non-zero to see the harmonic effects.",
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"description": "exp - Pushes the noise values toward 0, or +1 and -1. (It raises the value to the power of the exponent.) Exponents greater than one will pull the channel toward zero, and powers less than one will pull peaks towards +1 and -1. It is used to reshape the channels.",
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"description": "amp - Defines the noise value's amplitude (a scale on the values output).",
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"description": "offset - Defines the midpoint color of the noise pattern, the default is 0.5 grey.",
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"description": "mono - Toggle color or monochrome noise.",
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"description": "aspectcorrect - Controls if the noise takes aspect ratio into account when calculating it's noise coordinates. When this is off, the noise will stretch to fit a non-square aspect ratio texture.",
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"description": "xord - - The menu attached to this parameter allows you to specify the order in which the transforms will take place. Changing the Transform order will change where things go much the same way as going a block and turning east gets you to a different place than turning east and then going a block.\n\n srt - str - rst - rts - tsr - trs -",
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"description": "rord - - The rotational matrix presented when you click on this option allows you to set the transform order for the rotations. As with transform order (above), changing the order in which the rotations take place will alter the final position.\n\n xyz - xzy - yxz - yzx - zxy - zyx -",
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"description": "r - - Rotate the sampling plane in the noise space.\n\n rx - ry - rz -",
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"description": "s - - Scale the sampling plane.\n\n sx - sy - sz -",
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"description": "p - - Control the pivot for the transform of the sampling plane.\n\n px - py - pz -",
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"description": "t4d - When doing 4D noise, this applies a translation to the 4th coordinate. The previous transformation parameters do not affect the 4th coordinate.",
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"description": "s4d - When doing 4D noise, this applies a scale to the 4th coordinate.",
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"description": "rgb - - When an input is connected to the Noise , the noise pattern is placed over the input image using UV coordinates and the settings from this menu.\n\n noise - Just the noise is output. multiply - The noise is multiplied with the input. add - The input is added to the noise. subtract - The input is subtracted from the noise.",
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"description": "noise - Just the noise is output. multiply - The noise is multiplied with the input. add - The input is added to the noise. subtract - The input is subtracted from the noise.",
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"description": "inputscale - Adjusts how much of the input image is added to the output.",
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"description": "noisescale - Adjusts how much of the noise is added to the output.",
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"description": "alpha - - Sets the alpha channel for the output image.\n\n zero - Alpha channel is zero. one - Alpha channel is one. random - Alpha channel is random noise. input - Alpha is the pass through from the input. multiply - Alpha is the result of the input's alpha channel * the noise. add - Alpha is the result of the input's alpha channel + the noise. addclamp - Alpha is the result of the input's alpha channel + the noise but clamped around [0-1].",
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"description": "zero - Alpha channel is zero. one - Alpha channel is one. random - Alpha channel is random noise. input - Alpha is the pass through from the input. multiply - Alpha is the result of the input's alpha channel * the noise. add - Alpha is the result of the input's alpha channel + the noise. addclamp - Alpha is the result of the input's alpha channel + the noise but clamped around [0-1].",
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"name": "Dither",
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"description": "dither - Dithers the output to help deal with banding and other artifacts created by precision limitations of 8-bit displays.",
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"name": "Derivative (Slope)",
"label": "Derivative (Slope)",
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"description": "derivative - Turn this on to output the derivative (also known as slope) of the noise function. Currently, only supported for Simplex2D, Simplex3D, Perlin2D and Perlin3D noise types. For 2D noise derivatives, the RG channels get populated with the XY derivatives. For 3D noise derivatives, the RGB channels get populated with the XYZ derivatives. Note that this calculates derivative of the noise function not derivatives along the noise image.",
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"name": "Output Resolution",
"label": "Output Resolution",
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"description": "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 - Grow or shrink the input resolution to fit this resolution, while keeping the aspect ratio the same. limit - Limit the input resolution to be not larger than this resolution, while keeping the aspect ratio the same. custom - Directly control the width and height.",
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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 - Grow or shrink the input resolution to fit this resolution, while keeping the aspect ratio the same. limit - Limit the input resolution to be not larger than this resolution, while keeping the aspect ratio the same. custom - Directly control the 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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"description": "resmenu - A drop-down menu with some commonly used resolutions.",
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"description": "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.",
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"description": "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.",
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"description": "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.",
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