Index: doc/registry/extensions/ARB/shader_texture_image_samples.txt =================================================================== --- doc/registry/extensions/ARB/shader_texture_image_samples.txt (revision 30904) +++ doc/registry/extensions/ARB/shader_texture_image_samples.txt (working copy) @@ -40,13 +40,13 @@ Dependencies - OpenGL 4.3 is required. + Either GLSL 3.20 or ARB_texture_multisample is required. - OpenGL Shading Language 4.30 is required - This extension is written against the OpenGL 4.4 specification and version 4.40 of the OpenGL Shading Language Specification. + This extension interacts with ARB_shader_image_load_store and GLSL 4.20. + This extension interacts with NV_gpu_program5, EXT_shader_image_load_store and NV_texture_multisample. @@ -113,6 +113,11 @@ Returns the number of samples of the image or images bound to . +Dependencies on ARB_shader_image_load_store and GLSL 4.20. + + If neither ARB_shader_image_load_store nor GLSL 4.20 is enabled in the + shader, then all overloads of imageSamples are removed. + Dependencies on NV_gpu_program5, EXT_shader_image_load_store and NV_texture_multisample @@ -243,7 +248,11 @@ What's the minimal GL/GLSL version we need to depend on. - RESOLVED: Defined as an extension to OpenGL 4.4 and GLSL 440 for now. + RESOLVED: The functionality added by this extension is + perfectly well defined in any shading language version that + supports multisample textures. If the shading language, with + extensions, does not support images, then imageSamples is not + available. (5) Do we need overloads for non-MS textures and images @@ -261,6 +270,10 @@ queries. Revision History + Revision 8, 2015/09/08 (idr) + - Add interactions with various GLSL versions and extensions so + that this extension can be used with any GLSL version. + Revision 7, 2014/05/28 (mschott) - Minor cleanups of NV_gpu_program5 dependencies in issue 5 and the introduction