playcanvas
Version:
PlayCanvas WebGL game engine
4 lines (2 loc) • 571 B
JavaScript
var particleAnimTexVS = "\n float animationIndex;\n if (animTexIndexParams.y == 1.0) {\n animationIndex = floor((animTexParams.w + 1.0) * rndFactor3.z) * (animTexParams.z + 1.0);\n } else {\n animationIndex = animTexIndexParams.x * (animTexParams.z + 1.0);\n }\n float atlasX = (animationIndex + animFrame) * animTexTilesParams.x;\n float atlasY = 1.0 - floor(atlasX + 1.0) * animTexTilesParams.y;\n atlasX = fract(atlasX);\n texCoordsAlphaLife.xy *= animTexTilesParams.xy;\n texCoordsAlphaLife.xy += vec2(atlasX, atlasY);\n";
export { particleAnimTexVS as default };