[OPTing] texture limits

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Re: [OPTing] texture limits

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Warb_Null
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Post by Warb_Null » Wed Aug 08, 2018 11:31 am

I have a question.
I have a model of a fighter with a transparent canopy that keeps crashing the game.
I narrowed it down to the canopy being the cause. When i delete the canopy everything is fine. When i apply a BMP texture to the canopy everything is fine. When i apply a PNG texture it crashes the game. I tried using the canopy texture from the A-wing, stil crashing.
The pilots goggles also have a transparrent PNG but this causes no problem.

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Post by JeremyaFr » Thu Aug 09, 2018 7:20 pm

Hello,
When a PNG image is imported, it is loaded as a 32-bit texture. You need to convert it to 8-bit by clicking on "Convert All to 8 bits".

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Post by Warb_Null » Thu Aug 09, 2018 9:01 pm

I did that but it still crached :(
I think it mhas something to do with the mesh. I remade the canopy with a lower facecount and that seemed to resolve it. No more crash :)
Could there be a different limit for face number when using tranparency?
Anyway, it's resolved now. Thanks for the help.

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Post by JeremyaFr » Fri Aug 10, 2018 3:42 pm

I'm able to reproduce the crash.
You're right. The game crashes when a mesh with a high face count has a transparent texture.

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Post by JeremyaFr » Fri Aug 31, 2018 7:37 pm

UPDATE

Hello,
I've include the 'triangling to infinity' patch to the opt limit hook.

Please redownload xwa_hook_opt_limit.zip

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Post by Bman » Mon Nov 05, 2018 12:48 am

Hi Jeremy, wanted to clarify the vertice possibilities. Assume an .opt model is maxed out at 50 meshes (not including low LOD meshes).
If I set the hook_opt_limit.cfg file to "Size = 32768" does that mean "each" mesh can have up to a maximum of 32,768 vertices ?
If not, what would be limits per any given mesh ? Thanks.
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Post by JeremyaFr » Mon Nov 05, 2018 8:41 pm

Hi Bman,

I think it is safe to have up to 15000 vertices per mesh. With more, the game may crash.

With this patch, one can reach up to 20000 vertices. With more, the game may crash or the craft may not be rendered.

Code: Select all

; increase the vertex count
At offset 0882D0, replace 00A60E00 with 00B12100.
At offset 0882DF, replace 409C0000 with 60670100.

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Post by Bman » Tue Nov 06, 2018 12:26 am

Great! 20k. :-) So implementing the above Offset patch, I'm still confused on what the hook_opt_limit.cfg (Size = value) means. The .dll uses default of 4096. Does "value" represent the maximum allowed vertice count for any given mesh, or does "value" represent the maximum vertices allowed per FaceGroup within a given mesh ?

You mentioned earlier you had fixed the crashing issue of a "FaceGroup with more than around 1024 3d vertices. I've increased the size of the execute buffer to fix the buffer overflow. The limit is now around 32768 3d vertices." I think I'm getting the two confused. Thanks :-)
W-I-P: ISD-II, XQ-1 Platform1, (Imp) Escort Carrier, Misc, & TFTC.

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Post by JeremyaFr » Tue Nov 06, 2018 9:25 am

The value in hook_opt_limit.cfg represents the vertices count in the mesh vertices node in the opt file. In XwaOptEditor, the value is shown in the V column of the mesh list or in the Geometry/Vertices tab. When the limit is exceeded (without the hook, the limit in the exe is 512), the game may crash when the craft is hit.

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Driftwood
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Post by Driftwood » Tue Nov 06, 2018 2:11 pm

Is this something that is going to be made a default increase to 15-20k vertices at some point, or should we plan on sticking with 4096/mesh?

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Post by JeremyaFr » Tue Nov 06, 2018 3:17 pm

Hello,
Here is a few test opt files:
opt_limits_70.zip
(492.79 KiB) Downloaded 43 times
Setup:
  1. Set Size=12000 in hook_opt_limit.cfg
  2. Apply the above patch
Results:
  • limits_1_1_69_69.opt seems to work
  • limits_1_1_70_70.opt seems to work
  • limits_1_1_71_71.opt doesn't work
If the patch works and the game doesn't crash, I will add it to the hook.

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Post by Bman » Fri Nov 09, 2018 4:27 am

.
Last edited by Bman on Sat Dec 15, 2018 12:32 am, edited 1 time in total.
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Post by JeremyaFr » Mon Nov 26, 2018 8:52 pm

UPDATE

Hello,
Here is a tool to easily download my editing tools:
XwaToolsDownloader.zip

Usage:
1) Run XwaToolsDownloader.exe.
2) It will download the tools list ( "xwa_tools_list.txt" ) from GitHub. To redownload the list, delete the "xwa_tools_list.txt" file.
3) It will create a directory named "_archives" and download the tools into this directory. Only the new tools are downloaded.
4) It will extract the tools. Only the new tools are extracted.

Supported tools:
- XwaDatEditor
- XwaCbmEditor
- XwaOptEditor
- XwaImcEditor
- XwaSnmConverter
- ZtPatcher

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Darksaber

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Post by Darksaber » Tue Nov 27, 2018 8:47 am

Thanks Jeremy :)
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Post by JeremyaFr » Sat Dec 01, 2018 1:52 pm

TEST

Hello,
I found how to remove the vertices count limit for meshes that have a transparent texture. It seems to also work for non transparent textures.

limits_1_1_150_150-2.zip
(499.97 KiB) Downloaded 15 times

This opt contains a mesh that has 90 000 triangles, 180 000 vertices. To test it, you have to set "Size = 65536" in "Hook_Opt_Limit.cfg".

I will update the Opt dll and XwaOptEditor to apply the change. It seems that there is no longer a vertices count limit. The limit will be the performance.
EDIT: done
Last edited by JeremyaFr on Sat Dec 01, 2018 3:58 pm, edited 1 time in total.

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Driftwood
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Post by Driftwood » Sat Dec 01, 2018 2:10 pm

:shock:

Glen merge buff dun!?

Holy moly!

Luxury yacht's going to be getting an update then. It shall be absolutely opulent! I've got other stuff in working on at the moment, but I wasnt fully satisfied with the interior.

I'm imagining all the potential in regards to larger items and environment props, rather than small ships.

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Darksaber

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Post by Darksaber » Sat Dec 01, 2018 2:41 pm

Confucius say.... Just because you can, doesn't mean you should
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Post by Bman » Sat Dec 01, 2018 6:19 pm

Brilliant. Then low level LOD's become more relevant to offset high poly count meshes.
There you go DTM, an open door for a new Death Star model and surface buildings and cities and landscape projects. :-)
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Post by JeremyaFr » Sat Dec 01, 2018 7:39 pm

UPDATE

Hello,
I've updated the opt limit hook to increase the vertices size limit from 4096 to 65536.

Please redownload xwa_hook_opt_limit.zip

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Driftwood
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Post by Driftwood » Sat Dec 01, 2018 7:44 pm

I can't seem to access your onedrive, it's crashing.

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Post by JeremyaFr » Sun Dec 02, 2018 4:36 pm

My OneDrive is fine.

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Driftwood
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Post by Driftwood » Sun Dec 02, 2018 5:13 pm

Must have been doing server maintenance then when I checked.

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Post by JeremyaFr » Fri Dec 14, 2018 5:38 pm

UPDATE

Hello,
I've included a patch to the opt limit hook. This patch fixes a crash when a face has a flat texture.

Please redownload xwa_hook_opt_limit.zip

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Darksaber

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Post by Darksaber » Fri Dec 14, 2018 6:40 pm

Thank you :)
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