Page 1 of 1

Slope Artifacts in Doom Software Renderer

PostPosted: Sun Jan 20, 2019 11:28 am
by Urthur


The sky in this map is a dome with a scolling texture. Vertical glitches appear in the (8bit) Doom Software Renderer in GZDoom 3.7.1
Additionally the edges of sloped surfaces sometimes have visible texture glitches.

No such artifacts appear in the GL or True Colour Software Render, or in ZDoom 2.8.1

Re: Slope Artifacts in Doom Software Renderer

PostPosted: Sun Jan 20, 2019 1:50 pm
by wildweasel
What WAD/map, and what are your coordinates (use IDMYPOS)?

Re: Slope Artifacts in Doom Software Renderer

PostPosted: Sun Jan 20, 2019 7:28 pm
by Urthur
It's a map I'm presently working on. Artifacts appear regardless of position or orientation.

Re: Slope Artifacts in Doom Software Renderer

PostPosted: Fri Feb 22, 2019 6:37 pm
by Urthur

Re: Slope Artifacts in Doom Software Renderer

PostPosted: Sun Sep 29, 2019 6:04 pm
by drfrag
No idea of what's going on but this thing is old, also happened in 3.3.2 but not in ZDoom32 (it's not the floatification). But there's another problem with disappearing sprites and lower performance with models enabled.
Probably it's the same issue as this one: viewtopic.php?f=56&t=62417

Re: Slope Artifacts in Doom Software Renderer

PostPosted: Sun Sep 29, 2019 6:06 pm
by Rachael
drfrag wrote: but not in ZDoom32 (it's not the floatification).

What happens when you compile without ASM support? (Should be in the list when you run cmake-gui - you might want to create a new build folder for this test, as changing defines recompiles the whole project)

Re: Slope Artifacts in Doom Software Renderer

PostPosted: Sun Sep 29, 2019 6:17 pm
by drfrag
Ouch! They are there, there's no need to recompile as only the non GL exe uses ASM in order to link the main one (SSE2) with SAFESEH.