molstar
Version:
A comprehensive macromolecular library.
10 lines • 1.58 kB
JavaScript
/**
* Slightly adapted from https://github.com/mrdoob/three.js
* MIT License Copyright (c) 2010-2020 three.js authors
*
* WebGL port of Subpixel Morphological Antialiasing (SMAA) v2.8
* Preset: SMAA 1x Medium (with color edge detection)
* https://github.com/iryoku/smaa/releases/tag/v2.8
*/
export var weights_vert = "\nprecision highp float;\n\nattribute vec2 aPosition;\nuniform vec2 uQuadScale;\n\nuniform vec2 uTexSizeInv;\nuniform vec4 uViewport;\n\nvarying vec2 vUv;\nvarying vec4 vOffset[3];\nvarying vec2 vPixCoord;\n\nvoid SMAABlendingWeightCalculationVS(vec2 texCoord) {\n vPixCoord = texCoord / uTexSizeInv;\n\n // We will use these offsets for the searches later on (see @PSEUDO_GATHER4):\n vOffset[0] = texCoord.xyxy + uTexSizeInv.xyxy * vec4(-0.25, 0.125, 1.25, 0.125); // WebGL port note: Changed sign in Y and W components\n vOffset[1] = texCoord.xyxy + uTexSizeInv.xyxy * vec4(-0.125, 0.25, -0.125, -1.25); // WebGL port note: Changed sign in Y and W components\n\n // And these for the searches, they indicate the ends of the loops:\n vOffset[2] = vec4(vOffset[0].xz, vOffset[1].yw) + vec4(-2.0, 2.0, -2.0, 2.0) * uTexSizeInv.xxyy * float(dMaxSearchSteps);\n}\n\nvoid main() {\n vec2 scale = uViewport.zw * uTexSizeInv;\n vec2 shift = uViewport.xy * uTexSizeInv;\n vUv = (aPosition + 1.0) * 0.5 * scale + shift;\n SMAABlendingWeightCalculationVS(vUv);\n vec2 position = aPosition * uQuadScale - vec2(1.0, 1.0) + uQuadScale;\n gl_Position = vec4(position, 0.0, 1.0);\n}\n";
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