1GL_EXT_transform_feedback 2http://www.opengl.org/registry/specs/EXT/transform_feedback.txt 3GL_EXT_transform_feedback 4 GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH_EXT 0x8C76 5 GL_TRANSFORM_FEEDBACK_BUFFER_MODE_EXT 0x8C7F 6 GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS_EXT 0x8C80 7 GL_TRANSFORM_FEEDBACK_VARYINGS_EXT 0x8C83 8 GL_TRANSFORM_FEEDBACK_BUFFER_START_EXT 0x8C84 9 GL_TRANSFORM_FEEDBACK_BUFFER_SIZE_EXT 0x8C85 10 GL_PRIMITIVES_GENERATED_EXT 0x8C87 11 GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN_EXT 0x8C88 12 GL_RASTERIZER_DISCARD_EXT 0x8C89 13 GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS_EXT 0x8C8A 14 GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS_EXT 0x8C8B 15 GL_INTERLEAVED_ATTRIBS_EXT 0x8C8C 16 GL_SEPARATE_ATTRIBS_EXT 0x8C8D 17 GL_TRANSFORM_FEEDBACK_BUFFER_EXT 0x8C8E 18 GL_TRANSFORM_FEEDBACK_BUFFER_BINDING_EXT 0x8C8F 19 void glBeginTransformFeedbackEXT (GLenum primitiveMode) 20 void glBindBufferBaseEXT (GLenum target, GLuint index, GLuint buffer) 21 void glBindBufferOffsetEXT (GLenum target, GLuint index, GLuint buffer, GLintptr offset) 22 void glBindBufferRangeEXT (GLenum target, GLuint index, GLuint buffer, GLintptr offset, GLsizeiptr size) 23 void glEndTransformFeedbackEXT (void) 24 void glGetTransformFeedbackVaryingEXT (GLuint program, GLuint index, GLsizei bufSize, GLsizei* length, GLsizei *size, GLenum *type, GLchar *name) 25 void glTransformFeedbackVaryingsEXT (GLuint program, GLsizei count, const GLchar ** varyings, GLenum bufferMode) 26