//This file is automatically rebuilt by the Cesium build process.
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export default "uniform sampler2D colorTexture;\n\
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uniform float contrast;\n\
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uniform float brightness;\n\
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\n\
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varying vec2 v_textureCoordinates;\n\
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\n\
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void main(void)\n\
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{\n\
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vec3 sceneColor = texture2D(colorTexture, v_textureCoordinates).xyz;\n\
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sceneColor = czm_RGBToHSB(sceneColor);\n\
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sceneColor.z += brightness;\n\
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sceneColor = czm_HSBToRGB(sceneColor);\n\
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\n\
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float factor = (259.0 * (contrast + 255.0)) / (255.0 * (259.0 - contrast));\n\
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sceneColor = factor * (sceneColor - vec3(0.5)) + vec3(0.5);\n\
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gl_FragColor = vec4(sceneColor, 1.0);\n\
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}\n\
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";
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