<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Validation of KHR_blend_equation_advanced stricter than NVidia" href="https://bugs.freedesktop.org/show_bug.cgi?id=105161#c2">Comment # 2</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Validation of KHR_blend_equation_advanced stricter than NVidia" href="https://bugs.freedesktop.org/show_bug.cgi?id=105161">bug 105161</a> from <a class="email" href="mailto:kde@carewolf.com" title="Allan Sandfeld Jensen <kde@carewolf.com>"> Allan Sandfeld Jensen</a> <pre>Note. I have been unable to get it to work at all in compatibility-mode desktop OpenGL. The following code only works in core mode: #ifdef GL_KHR_blend_equation_advanced #extension GL_KHR_blend_equation_advanced : require layout(blend_support_all_equations) out; #endif because layout is not identified in basic OpenGL 2.0, and while #ifdef GL_KHR_blend_equation_advanced #extension GL_ARB_explicit_attrib_location : enable #extension GL_KHR_blend_equation_advanced : require layout(blend_support_all_equations) out; #endif parses, it doesn't actually change anything. Mesa still reports: Mesa: User error: GL_INVALID_OPERATION in fragment shader does not allow advanced blending mode (GL_MULTIPLY) With NVidia drivers, I don't need any changes to fragment shaders.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>