//This file is automatically rebuilt by the Cesium build process.
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export default "// emulated noperspective\n\
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#if defined(GL_EXT_frag_depth) && !defined(LOG_DEPTH)\n\
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varying float v_WindowZ;\n\
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#endif\n\
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\n\
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/**\n\
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* Emulates GL_DEPTH_CLAMP. Clamps a fragment to the near and far plane\n\
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* by writing the fragment's depth. See czm_depthClamp for more details.\n\
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* <p>\n\
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* The shader must enable the GL_EXT_frag_depth extension.\n\
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* </p>\n\
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*\n\
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* @name czm_writeDepthClamp\n\
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* @glslFunction\n\
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*\n\
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* @example\n\
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* gl_FragColor = color;\n\
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* czm_writeDepthClamp();\n\
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*\n\
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* @see czm_depthClamp\n\
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*/\n\
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void czm_writeDepthClamp()\n\
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{\n\
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#if defined(GL_EXT_frag_depth) && !defined(LOG_DEPTH)\n\
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gl_FragDepthEXT = clamp(v_WindowZ * gl_FragCoord.w, 0.0, 1.0);\n\
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#endif\n\
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}\n\
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";
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