XXX - Not complete yet!!! Name SGIX_convolution_accuracy Name Strings GL_SGIX_convolution_accuracy Contact SGI Status XXX - Not complete yet!!! Version $Date: 1999/03/08 21:20:19 $ $Revision: 1.2 $ Number 211 Dependencies EXT_convolution or ARB_imaging is required. Overview This extension adds an accuracy hint for convolution. It allows the program to trade off precision for speed. New Procedures and Functions None New Tokens Accepted by the parameter of glHint and by the parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev: CONVOLUTION_HINT_SGIX 0x8316 Additions to Chapter 2 of the 1.1 Specification (OpenGL Operation) None Additions to Chapter 3 of the 1.1 Specification (Rasterization) None Additions to Chapter 4 of the 1.1 Specification (Fragments and the Frame Buffer) None Additions to Chapter 5 of the 1.1 Specification (Special Functions) Add to section 5.6 ("Hints"): If the argument of Hint is specified as CONVOLUTION_HINT then the argument indicates the desired quality of pixel colors computed by the convolution stage of the pixel transfer pipeline. Higher quality may correspond to higher-precision arithmetic, although an implementation may ignore the hint. This hint applies to both 1D and 2D convolution. Additions to Chapter 6 of the 1.1 Specification (State and State Requests) None Additions to the GLX Specification None GLX Protocol None Dependencies on EXT_convolution and ARB_imaging If EXT_convolution or ARB_imaging is implemented, this extension modifies the accuracy of the convolution operation. Errors None New State Get Value Get Command Type Value Attrib --------- ----------- ---- ------- ------ CONVOLUTION_HINT_SGIX GetIntegerv Z3 DONT_CARE hint New Implementation Dependent State None