7822511754
Change-Id: I2375e4c273f6cd340f253d71ae7eadc8ed9a38e9 Former-commit-id: 4f3635fc682c2a1746e188dac0f371676c9e0be9
33 lines
No EOL
1.1 KiB
GLSL
33 lines
No EOL
1.1 KiB
GLSL
// this shader program sets values into a mosaic texture
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// which is the same size as the screen (frame buffer)
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#include <mapping>
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uniform sampler2D imageDataTex;
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uniform DataTextureInfo imageData;
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uniform sampler1D imageToMosaicDataValues;
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uniform sampler1D imageToMosaicColorValues;
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uniform int imageToMosaicValues;
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uniform sampler2D mosaicDataTex;
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uniform DataTextureInfo mosaicData;
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void main(void) {
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float imageValue = textureToDataValue(imageDataTex, imageData, gl_TexCoord[0].st);
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vec2 frag_xy = gl_FragCoord.xy;
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float mosaicValue = textureToDataValue(mosaicDataTex, mosaicData,
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vec2(frag_xy.x / mosaicData.width, frag_xy.y / mosaicData.height));
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float newValue = mosaicValue;
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// No data check/special NaN check
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if (imageValue != imageData.noDataValue && imageValue == imageValue) {
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// Convert image value to mosaic value
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imageValue = dataToColorMapValue(imageValue, imageToMosaicDataValues, imageToMosaicColorValues, imageToMosaicValues);
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if (imageValue > mosaicValue) {
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newValue = imageValue;
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}
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}
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gl_FragColor = vec4(dataToTextureValue(mosaicData, newValue), 0.0, 0.0,
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1.0);
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} |