1GL_ARB_framebuffer_no_attachments 2https://www.khronos.org/registry/OpenGL/extensions/ARB/ARB_framebuffer_no_attachments.txt 3GL_ARB_framebuffer_no_attachments 4 5 GL_FRAMEBUFFER_DEFAULT_WIDTH 0x9310 6 GL_FRAMEBUFFER_DEFAULT_HEIGHT 0x9311 7 GL_FRAMEBUFFER_DEFAULT_LAYERS 0x9312 8 GL_FRAMEBUFFER_DEFAULT_SAMPLES 0x9313 9 GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS 0x9314 10 GL_MAX_FRAMEBUFFER_WIDTH 0x9315 11 GL_MAX_FRAMEBUFFER_HEIGHT 0x9316 12 GL_MAX_FRAMEBUFFER_LAYERS 0x9317 13 GL_MAX_FRAMEBUFFER_SAMPLES 0x9318 14 void glFramebufferParameteri (GLenum target, GLenum pname, GLint param) 15 void glGetFramebufferParameteriv (GLenum target, GLenum pname, GLint* params) 16 void glGetNamedFramebufferParameterivEXT (GLuint framebuffer, GLenum pname, GLint* params) 17 void glNamedFramebufferParameteriEXT (GLuint framebuffer, GLenum pname, GLint param) 18