logdepthbufFragment top-level constant
          
          String
          const logdepthbufFragment
          
        
        
        
Implementation
const String logdepthbufFragment = """
#if defined( USE_LOGDEPTHBUF )
	// Doing a strict comparison with == 1.0 can cause noise artifacts
	// on some platforms. See issue #17623.
	gl_FragDepth = vIsPerspective == 0.0 ? gl_FragCoord.z : log2( vFragDepth ) * logDepthBufFC * 0.5;
#endif
""";