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Initial commit: Final state of the master project

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Bas Dado
2017-09-16 09:41:37 +02:00
commit 696180d43b
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Research/shaders/GI.frag Normal file
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#version 430 core
in vec2 UV;
out vec4 color;
uniform sampler2D shadeless;
uniform sampler2D direct;
uniform sampler2D indirect;
const int kernelSize = 5;
const float[kernelSize][kernelSize] kernel = {
{ 2.0, 4.0, 5.0, 4.0, 2.0 },
{ 4.0, 9.0, 12.0, 9.0, 4.0 },
{ 5.0, 12.0, 15.0, 12.0, 5.0 },
{ 4.0, 9.0, 12.0, 9.0, 4.0 },
{ 2.0, 4.0, 5.0, 4.0, 2.0 },
};
const float kernelNormalizer = 1.0 / 115.0;
const float lightStrength = 1.0;
void main(void)
{
ivec2 screenSize = textureSize(shadeless, 0);
vec4 smoothIndirect = vec4(0);
ivec2 startCoord = ivec2(screenSize * UV) - ((kernelSize - 1) / 2);
for (int i = 0; i < kernelSize; i++) {
for (int j = 0; j < kernelSize; j++) {
ivec2 coord = startCoord + ivec2(i, j);
if (coord.x >= 0 && coord.y >= 0)
smoothIndirect += kernel[i][j] * texelFetch(indirect, coord, 0);
}
}
smoothIndirect *= kernelNormalizer * lightStrength;
vec4 shadelessPx = texture(shadeless, UV);
vec4 directPx = texture(direct, UV);
//color = shadelessPx * smoothIndirect;
color = shadelessPx * directPx + shadelessPx * smoothIndirect;
//color = texture(indirect, UV);
}