[1.4.8 r762] Bug: Rendering issue (3DFloor?)

[Dancso]

I've been playing the recently released project called "Paranoid".
As I was progressing, I noticed that the water tanks looked... weird.
I've haven't had any similar visual errors during gameplay so it might not affect all 3D floors or something like that.

Here are two screenshots:

http://img717.imageshack.us/img717/3589 ... 004021.png
http://img231.imageshack.us/img231/3589 ... 004021.png

(The latter also includes a strange "sprite-splitting" issue which might be related to fake floors or translucent 3d floors, as I've seen this happen before in a test map I've made:
http://img706.imageshack.us/img706/4813 ... 004022.png
http://forum.zdoom.org/viewtopic.php?f= ... 6&p=461851 (has link to the wad)
This is only visible because I've got all sprites aligned on both y and x axis to the camera)

My system specs are:

OS: Windows XP Professional (SP2)
Processor: AMD Athlon 64 X2 (4000+)
Graphics card: ATI HD 4730 (512 mb, GDDR5)
Memory: 3 GB
Catalyst (display driver) version: 09.12

Edit: Would it be of much use for me to make a benchmark perhaps? (in no relation to this bug)

[Rex Claussen]

That is a weird bug, as neither Enjay nor I can replicate it. I wonder if it's a rendering error. I'll ask about it on GZDooM forums.

[Enjay]

For info, than tanks are in map01 and warping to -3350, 800 will put you in a good place to see them.

[Graf Zahl]

I can confirm the sprite splitting problem. The reason for this is that XY-billboarding does not work with splitting due to translucent 3D floors and it never will. I added this option only because some people felt they couldn't live without it, despite knowing that it's a source of problems. Either switch it off or live with the visual garbage. It can't be fixed without completely redoing all related code - which I won't.

[Rex Claussen]

But the question (at least to me) still remains: Why is Dansco seeing the problem and Enjay and I aren't? Does it have something to do with our configurations?

[Enjay]

Dansco must have sprite billboard set to XY instead of Y in his OpenGL preferences (the default is Y). That at least explains the scientist's head. The tanks, I think, are a separate problem.

[Dancso]

I did think the sprite splitting bug was already known but I just included it in my post anyway, who knows.
It doesn't disturb me much at all, as far as it is not game breaking.