glReleaseShaderCompiler 3G glReleaseShaderCompiler release resources allocated by the shader compiler void glReleaseShaderCompiler void For implementations that support a shader compiler, glReleaseShaderCompiler frees resources allocated by the shader compiler. This is a hint from the application that additional shader compilations are unlikely to occur, at least for some period of time, and that the resources consumed by the shader compiler may be released and put to better use elsewhere. However, if a call to glCompileShader is made after a call to glReleaseShaderCompiler, the shader compiler must be restored to service the compilation request as if glReleaseShaderCompiler had never been called. Shader compiler support is optional, and thus must be queried before use by calling glGet with argument GL_SHADER_COMPILER. glShaderSource, glCompileShader, glGetShaderPrecisionFormat, and glReleaseShaderCompiler will each generate GL_INVALID_OPERATION on implementations that do not support a shader compiler. Such implementations instead offer the glShaderBinary alternative for supplying a pre-compiled shader binary. GL_INVALID_OPERATION is generated if a shader compiler is not supported. glGet with argument GL_SHADER_COMPILER glCompileShader, glShaderSource Copyright 2008 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.