//This file is automatically rebuilt by the Cesium build process.
|
export default "#ifdef GL_OES_standard_derivatives\n\
|
#extension GL_OES_standard_derivatives : enable\n\
|
#endif\n\
|
\n\
|
uniform vec4 color;\n\
|
uniform float spacing;\n\
|
uniform float width;\n\
|
\n\
|
czm_material czm_getMaterial(czm_materialInput materialInput)\n\
|
{\n\
|
czm_material material = czm_getDefaultMaterial(materialInput);\n\
|
\n\
|
float distanceToContour = mod(materialInput.height, spacing);\n\
|
\n\
|
#ifdef GL_OES_standard_derivatives\n\
|
float dxc = abs(dFdx(materialInput.height));\n\
|
float dyc = abs(dFdy(materialInput.height));\n\
|
float dF = max(dxc, dyc) * czm_pixelRatio * width;\n\
|
float alpha = (distanceToContour < dF) ? 1.0 : 0.0;\n\
|
#else\n\
|
float alpha = (distanceToContour < (czm_pixelRatio * width)) ? 1.0 : 0.0;\n\
|
#endif\n\
|
\n\
|
vec4 outColor = czm_gammaCorrect(vec4(color.rgb, alpha * color.a));\n\
|
material.diffuse = outColor.rgb;\n\
|
material.alpha = outColor.a;\n\
|
\n\
|
return material;\n\
|
}\n\
|
";
|
