[0.4.5]user defined art transparency issues

[Photonic]

One of eduke32s very useful modding features is the ability to define new game images without .art files using the def command tilefromtexture.
In raze the art loaded this way behaves different and has a transparency glitch where although you can see through, sprites disappear behind these transparent pixels. Same for indexed or RGB .png files, oddly loading .bmp files this way show me the ugly pink pixels instead of any transparency at all.

debug map, and duke3d.def with 1 png, 1 bmp. the map consists of the same image (a broken glass texture) placed around but using the three different methods of loading, (from .art, from tiletotexture both bmp and png)

transparency-debug-1.zip

Duke_0001.png

To test unzip contents into duke folder and run "raze.exe -map newboard.map"

added: To be clear, the behaviour of .bmp files with pink drawing is the same in eduke32, I just thought it was worth mentioning. The alpha for .pngs are behaving diferent here.

[Graf Zahl]

BMPs have no transparent color so that part is hardly surprising.

[Graf Zahl]

So what's wrong here? The transparent parts of the PNG allow everything to be seen that's behind and the BMP, having no transparency looks opaque as it should.

[Photonic]

It's a horrible picture, and a poor bug report.
The transparent sprites you see in the picture [in the OP] are from the .art tiles.

This picture is better.

Untitled-1.png

I have tested some of this with the upscale pack. The plain "texture" command works, but only for tiles that have a base in .art files. If the tile is created new using "tilefromtexture" then the same transparency issue carries over to high res "texture" defined images too.

[Graf Zahl]

No idea how you manage that, I don't. Where does that monster come from?

[Photonic]

I put him into the map in OP using mapster. Just tested the "spawn liztroop" command works in raze you can get one running around in that debug map easily. Same happens either way. Only on new tiles created with tilefromtexture in def file.
Like this.

Code: Select all

tilefromtexture 5000 { file "5000.bmp" }
tilefromtexture 5001 { file "5001.png" }

The reason I brought up bmps is because it illustrates that the two methods of loading art behave differently, after all the .art file is just a collection of bitmaps, palette entry 256 is transparent, but the hint is in it not being so when loaded with def files. That pink is not a bug, just a hopefully helpful hint.

[Graf Zahl]

No, you got it wrong about ART files. ART files are not BMP files but raw pixels where 255 is defined to be the transparent color. BMPs do not define a transparent color so the pink is opaque. This is entirely defined and intended behavior.

I still do not get the glitch you experience. What's your hardware?

[Phredreeke]

I've got glitchy tilefromtextures as well. Noticable if you load my Powerslave or Life's a Beach pack and turn off truecolor textures. I recorded a short clip of it here

https://www.youtube.com/watch?v=6dg19TbaEy4

Edit: This is on an i5-3450 with a GTX 980 running Win 7

[Photonic]

I still do not get the glitch you experience. What's your hardware?

Intel core2duo E8400

OS: Windows 7 (NT 6.1) Build 7601

GL_VENDOR: NVIDIA Corporation
GL_RENDERER: GeForce GT 640/PCIe/SSE2
GL_VERSION: 4.4.0 (Core profile)
GL_SHADING_LANGUAGE_VERSION: 4.40 NVIDIA via Cg compiler

Max. texture size: 16384
Max. texture units: 32
Max. varying: 124
Max. combined shader storage blocks: 96
Max. vertex shader storage blocks: 16
Resolution: 1280 x 1024

[Photonic]

I've got glitchy tilefromtextures as well. Noticable if you load my Powerslave or Life's a Beach pack and turn off truecolor textures. I recorded a short clip of it here

https://www.youtube.com/watch?v=6dg19TbaEy4

Edit: This is on an i5-3450 with a GTX 980 running Win 7

That looks very different from mine, your video looks like a form of corruption. On my end hud tiles defined with tilefromtexture render properly, same with my menu font. My bug is only on sprites within the game world.

[Photonic]

I've got glitchy tilefromtextures as well. Noticable if you load my Powerslave or Life's a Beach pack and turn off truecolor textures. I recorded a short clip of it here

https://www.youtube.com/watch?v=6dg19TbaEy4

Edit: This is on an i5-3450 with a GTX 980 running Win 7

I can reproduce this here. Same conditions, any tilefromtexture image with truecolor off.

TEST_0001.png

[sinisterseed]

I've got glitchy tilefromtextures as well. Noticable if you load my Powerslave or Life's a Beach pack and turn off truecolor textures. I recorded a short clip of it here

https://www.youtube.com/watch?v=6dg19TbaEy4

Edit: This is on an i5-3450 with a GTX 980 running Win 7

Can confirm this as well: https://i.imgur.com/8o1Tvne.png

[Graf Zahl]

Is this still an issue? AFAIK the cause got fixed a few months back.

[mjr4077au]

I'll test tonight unless someone else beats me to the punch. The test might not be conclusive until some of the sprite substitution works for the BigFont again as it was one of the things that glitched as well IIRC.

[mjr4077au]

So the glitchiness when turning off true colour tiles doesn't seem to be there. The only issue observed was issues with upscaled HUD sprites as outlined here. Will close this for now, #100 is still open so I guess it'll be worked on in due course .