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32 lines
1.2 KiB
JavaScript
32 lines
1.2 KiB
JavaScript
//This file is automatically rebuilt by the Cesium build process.
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export default "uniform vec4 lightColor;\n\
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uniform vec4 darkColor;\n\
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uniform vec2 repeat;\n\
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\n\
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czm_material czm_getMaterial(czm_materialInput materialInput)\n\
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{\n\
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czm_material material = czm_getDefaultMaterial(materialInput);\n\
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\n\
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vec2 st = materialInput.st;\n\
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\n\
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// From Stefan Gustavson's Procedural Textures in GLSL in OpenGL Insights\n\
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float b = mod(floor(repeat.s * st.s) + floor(repeat.t * st.t), 2.0); // 0.0 or 1.0\n\
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\n\
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// Find the distance from the closest separator (region between two colors)\n\
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float scaledWidth = fract(repeat.s * st.s);\n\
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scaledWidth = abs(scaledWidth - floor(scaledWidth + 0.5));\n\
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float scaledHeight = fract(repeat.t * st.t);\n\
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scaledHeight = abs(scaledHeight - floor(scaledHeight + 0.5));\n\
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float value = min(scaledWidth, scaledHeight);\n\
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\n\
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vec4 currentColor = mix(lightColor, darkColor, b);\n\
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vec4 color = czm_antialias(lightColor, darkColor, currentColor, value, 0.03);\n\
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\n\
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color = czm_gammaCorrect(color);\n\
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material.diffuse = color.rgb;\n\
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material.alpha = color.a;\n\
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\n\
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return material;\n\
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}\n\
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";
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