[Bug 31013] [r300g][glsl] Textures are black in Xonotic with offset mapping - r300 FP: Compiler Error: r300_fragprog_emit.c::begin_tex(): Too many texture indirections

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Oct 27 06:43:24 PDT 2010


--- Comment #16 from Roland Scheidegger <sroland at vmware.com> 2010-10-27 06:43:24 PDT ---
> Ok, so it looks like I was wrong about this.  I input a shader with 4
> indirections to the AMD Shader Analyzer and it crashed, so I'm pretty sure r300
> is limited to 3 indirections.  I'm guessing that the reason this works on
> Windows with r300 hardware is because that driver has some sort of software
> fall-back, which r300g doesn't have.

I dunno maybe the driver does some tricks like trying to move out the
calculation leading to the first texture lookup back to the vertex shader? No
idea if that would actually work...

Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

More information about the dri-devel mailing list