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molstar

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A comprehensive macromolecular library.

github.com/molstar/molstar

molstar/molstar

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/** * Copyright (c) 2020 mol* contributors, licensed under MIT, See LICENSE file for more info. * * @author David Sehnal <david.sehnal@gmail.com> */ export declare const grid3dTemplate_frag = "\nprecision highp float;\nprecision highp int;\nprecision highp sampler2D;\n\nuniform vec2 uQuadShift;\nuniform vec3 uDimensions;\nuniform vec3 uMin;\nuniform vec3 uDelta;\nuniform bool uLittleEndian;\nuniform float uWidth;\n\n#ifdef CUMULATIVE\n uniform sampler2D tCumulativeSum;\n#endif\n\n{UNIFORMS}\n\n{UTILS}\n\n#include float_to_rgba\n#ifdef CUMULATIVE\n #include rgba_to_float\n#endif\n\nfloat intDiv(float a, float b) { return float(int(a) / int(b)); }\nfloat intMod(float a, float b) { return a - b * float(int(a) / int(b)); }\n\nvoid main(void) {\n float offset = floor(gl_FragCoord.x) + floor(gl_FragCoord.y) * uWidth;\n\n // axis order fast to slow Z, Y, X\n // TODO: support arbitrary axis orders?\n float k = intMod(offset, uDimensions.z), kk = intDiv(offset, uDimensions.z);\n float j = intMod(kk, uDimensions.y);\n float i = intDiv(kk, uDimensions.y);\n\n vec3 xyz = uMin + uDelta * vec3(i, j, k);\n\n {MAIN}\n\n #ifdef CUMULATIVE\n float current = rgbaToFloat(texture2D(tCumulativeSum, gl_FragCoord.xy / vec2(uWidth, uWidth)), uLittleEndian);\n #endif\n gl_FragColor = floatToRgba({RETURN}, uLittleEndian);\n}\n";