Certain water textures have disappeared when starting the game

[Purkkaviritys]

Hi, I'm having weird issue with the intensity option. I play with the intensity set to 3 and brightness set to 60% on my larger Benq LCD (since it gives best colours and visibility). When I start the game occasionally the texture that's supposed to be on top of the water has disappeared.

When I change intensity (gl_modulate) to 2 or 4 and do vid_restart and then change intensity back to 3 and do vid_restart the texture that's supposed to cover water is back. It doesn't imho affect all liquid areas just the ones with certain kind of water textures like the one seen in the E1M1(a,b,c).

After I fool around with the gl_modulate:

I've had this happen to me in both Windows and Linux. But I mostly encounter this in Windows.

[Purkkaviritys]

I added note that it's about gl_modulate. And that it has happened both in Windows and Linux.

[Knightmare66]

I am unable to reproduce this with the current development build and intensity set to 3. It may be driver related.

What GPU and driver are you using? Is gl_alphasurf_multitexture set to 0 or 1?

Have you tried wiping your .cfg and starting from defaults?

[Purkkaviritys]

Hmm. I doubt this is a driver issue because this happens on two different machines in Windows. My laptop has both Intel HD4000 and nVidia NVS5400. And my desktop has nVidia GT630. And I think I probably saw it happen in old Linux build too. However since I'm unable to replicate it now using HD4000 in Linux I am doubting myself over that. I'm using latest available drivers in Windows. I presume that I have the latest stable GPU drivers in Linux but I cannot know that for certain. I also tried making clean driver profile for the game.

I did driver clean up and reinstall in my desktop's Windows but that didn't change the issue. I don't know about the gl_alphasurf_multitexture in Windows. I can check it out later.

On this Linux machine with HD4000 that option was set to 1 by default. I tried on purpose set it to 0 and then did vid_restart. It did nothing. I then set it back to 1 and did vid_restart. But still no change. The water textures were properly visible and worked like they should.

I want to underline that fact that this happens maybe 1/4 of the time. It's not constant. It took me a while to even notice that it occurs... I need to try out if changing the nVidia's driver setting's "application chooses, profile chosen, performance/quality-slider" changes anything. That's something I just thought of.

I haven't tried wiping the cfgs and starting from defaults. I've not edited the configs outside the game.

[Knightmare66]

I just had this happen to me in E2M2. Intensity was set to 1, and changing it didn't affect the problem. The water textures would disappear on occasion as I moved around the map, but a vid_restart would usually restore them, depending on where I was in the map.

This is definitely some sort of OpenGL state problem, and it appears that the water texture may be getting clobbered.

[Knightmare66]

Fixed this by resetting vertex array counters before rendering alpha surfaces.