| Summary: | st/mesa: fog is broken in demos/drawpix | ||
|---|---|---|---|
| Product: | Mesa | Reporter: | Tormod Volden <bugzi11.fdo.tormod> |
| Component: | Mesa core | Assignee: | mesa-dev |
| Status: | RESOLVED MOVED | QA Contact: | |
| Severity: | minor | ||
| Priority: | low | ||
| Version: | git | ||
| Hardware: | x86 (IA32) | ||
| OS: | Linux (All) | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
| Attachments: |
drawpix with fog enabled on rv410
Xorg.0.log glxinfo output |
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Created attachment 41812 [details]
Xorg.0.log
Created attachment 41813 [details]
glxinfo output
Softpipe doesn't render it correctly either. Reassigning to Mesa core. Looks like the vertex shader isn't passing the fog coordinate to the fragment shader. In st_cb_drawpix.c the make_passthrough_vertex_shader() function also needs to take a 'fog' parameter and emit a fog result, either computed from the current fog coordinate or as a function of the vertex Z position. I don't think many people depend on fog with glDrawPixels so this is low priority. -- GitLab Migration Automatic Message -- This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/965. |
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Created attachment 41811 [details] drawpix with fog enabled on rv410 When enabling fog in the drawpix demo, the fog looks very "digitized" with tiles and edges. See attached screendump for a better impression. For comparison, it looks well and finely distributed on my old savage card. This is gallium on RV410, mesa 7.10 as of today. I also ran the piglit fog tests but they all passed.