[Webkit-unassigned] [Bug 231490] https://tankionline.com/play/ html5 engine not working: crashes. (Metal shader not working)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=231490

--- Comment #2 from Kyle Piddington <kpiddington at apple.com> ---
Hello! Thank you for reporting this.

The issue we're having is caused by an unused output variable. The shader in question:
//
// #version 300 es
//                      #ifdef GL_FRAGMENT_PRECISION_HIGH
//                              precision highp float;
//                              precision highp int;
//                      #else
//                              precision mediump float;
//                              precision mediump int;
//                      #endif
//                      
//                      #define varying in
//                      #define texture2D texture
//                      #define textureCube texture
//                      
//                      out vec4 outColor0;
//                      #define gl_FragColor outColor0
//                      
// 
//                      void main() {
//                      }
//              

Doesn't actually do anything with outColor0. However, we still generated an initialization instruction to zero it out, despite not including this output variable from the shader. 

Thanks for catching this, it's a real bug and we should fix it up.

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-unassigned/attachments/20211011/b8f6fe59/attachment.htm>