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playcanvas

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PlayCanvas WebGL game engine

playcanvas.com

playcanvas/engine

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var gsplatVS = '\n#include "gsplatCommonVS"\n\nvarying mediump vec2 gaussianUV;\nvarying mediump vec4 gaussianColor;\n\n#ifndef DITHER_NONE\n varying float id;\n#endif\n\nmediump vec4 discardVec = vec4(0.0, 0.0, 2.0, 1.0);\n\nvoid main(void) {\n // read gaussian details\n SplatSource source;\n if (!initSource(source)) {\n gl_Position = discardVec;\n return;\n }\n\n vec3 modelCenter = readCenter(source);\n\n SplatCenter center;\n if (!initCenter(modelCenter, center)) {\n gl_Position = discardVec;\n return;\n }\n\n // project center to screen space\n SplatCorner corner;\n if (!initCorner(source, center, corner)) {\n gl_Position = discardVec;\n return;\n }\n\n // read color\n vec4 clr = readColor(source);\n\n // evaluate spherical harmonics\n #if SH_BANDS > 0\n // calculate the model-space view direction\n vec3 dir = normalize(center.view * mat3(center.modelView));\n clr.xyz += evalSH(source, dir);\n #endif\n\n clipCorner(corner, clr.w);\n\n // write output\n gl_Position = center.proj + vec4(corner.offset, 0, 0);\n gaussianUV = corner.uv;\n gaussianColor = vec4(prepareOutputFromGamma(max(clr.xyz, 0.0)), clr.w);\n\n #ifndef DITHER_NONE\n id = float(source.id);\n #endif\n}\n'; export { gsplatVS as default };