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22 lines
526 B
Plaintext
22 lines
526 B
Plaintext
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#define rendered texture0
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uniform sampler2D rendered;
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uniform mediump float exposureFactor = 2.5;
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uniform float bloomLuminanceThreshold = 1.0;
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#ifdef GL_ES
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varying mediump vec2 varTexCoord;
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#else
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centroid varying vec2 varTexCoord;
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#endif
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void main(void)
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{
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vec2 uv = varTexCoord.st;
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vec4 color = texture2D(rendered, uv).rgba;
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// translate to linear colorspace (approximate)
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color.rgb = pow(color.rgb, vec3(2.2)) * exposureFactor;
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gl_FragColor = vec4(color.rgb, 1.0); // force full alpha to avoid holes in the image.
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}
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