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23 lines
425 B
GLSL
23 lines
425 B
GLSL
#ifdef ENABLE_AUTO_EXPOSURE
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#define exposureMap texture1
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uniform sampler2D exposureMap;
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VARYING_ float exposure;
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#endif
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CENTROID_ VARYING_ mediump vec2 varTexCoord;
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void main(void)
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{
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#ifdef ENABLE_AUTO_EXPOSURE
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// value in the texture is on a logarithtmic scale
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exposure = texture2D(exposureMap, vec2(0.5)).r;
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exposure = pow(2., exposure);
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#endif
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varTexCoord.st = inTexCoord0.st;
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gl_Position = inVertexPosition;
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}
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