.cpp error causing crash to desktop when applying material to terrain

[CJO Games]

This is a new one introduced with 0.9.5 and as the title suggests is caused when applying materials or creating materials from textures. This error will result in a preview.exe hang which is only recoverable by force close through the task - manager.

This is a new map and has only one material.

 

[Josh]

This occurs when you add a new material layer to the terrain? What material are you using?

The error you are seeing indicates that an unsupported texture format was probably used. I would like to know what texture file it is.

[CJO Games]

Yes as described and any material it doesn't really matter - I use and reuse materials consistently across versions and haven't seen this error before I can assure you that its not incompatible materials though.

[Josh]

The error above indicates there is some pixel format being used that I have not written support for yet. This is why the texture ID is zero.

[CJO Games]

That was my understanding too Josh. The error out-put is not terribly difficult to decipher even for a none .cpp developer. The problem, I think, is that although the code output is indicating some kind of pixel format error - the only thing that has changed at my end is the version number of your editor.

With 0.9.4 this error was not being caught - with 0.9.5 it is.

I haven't changed any textures, materials, image formats or, indeed, pixel formats and, so would suggest that this could be a bug somewhere catching a none existent or, maybe existent but previously unseen problem with texture or material generation. I suggest this is further backed-up by the fact that this is then causing preview.exe to hang and the resulting crash to desktop.

I can't freely share my textures or materials with you they are not mine to share.

 

[Josh]

The entire renderer backend was replaced in 0.9.5.

[CJO Games]

Notwithstanding all of the above but this error would appear to be linked to the separate clip out of bounds and is not causing a crash to desktop but is happening when the thumbnails are being generated.

[Josh]

I cannot fix this without seeing the texture files.

[CJO Games]

Well, if you notice the folder name highlighted this is a folder of glTF models that are not yet wrapped (no textures) so, even if there was a way to provide them they would be no help because despite what your cpp is saying there aren't any textures in this folder (the asphalt ball is a blank sphere with the name asphalt). I prototype (or try to) with unwrapped models first and add the materials in once in scene - the scene is currently a blank one - I haven't been able to get to the stage of wrapping models because the editor is so unstable since the update. This is the case on Stable and Dev channels.

[CJO Games]

Josh, can you try the following steps with this .png file? To reproduce simply right click and create material and, hopefully, it will do what it does to me and create the .cpp error and crash to desktop. This has just occurred for me within the last few moments.

 

Please note that the attached is a proprietary texture and should be treated as such.

Screen_distortion.zip

[CJO Games]

here is another one to try - again from a proprietary pack - in this case its a material that was created previously  and worked previously but which now causes a hard crash when I try to view it in the preview.exe 

 

Please note this is a proprietary texture and should be treated as such.

Grass Floor 1.zip

[Josh]

1 hour ago, CJO Games said:

Josh, can you try the following steps with this .png file? To reproduce simply right click and create material and, hopefully, it will do what it does to me and create the .cpp error and crash to desktop. This has just occurred for me within the last few moments.

Please note that the attached is a proprietary texture and should be treated as such.

Screen_distortion.zip 424.39 kB · 1 download

 

I added the missing format. However, there are a few rules for terrain textures in 0.9.5 to take note of:

•  All textures on one terrain must be the same size. There is an additional argument in the CreateTerrain function that lets you specify this size. I have not added a control in the editor yet to let you adjust the size of a terrain that is being created. The default size is 1024.
• Base color, metallic-roughness, and emission textures used in a terrain must be in format BC7.
• Displacement textures used in a terrain must be Luminance format (single channel 8 bit grayscale).
• Normal maps used in a terrain must be BC5 format.

The reason for this is that array textures are now being used for terrain rendering. This solves the problems we were seeing with pixels on the borders invocation groups and will help make the engine runnable on a wider range of hardware.

21 minutes ago, CJO Games said:

here is another one to try - again from a proprietary pack - in this case its a material that was created previously  and worked previously but which now causes a hard crash when I try to view it in the preview.exe 

Please note this is a proprietary texture and should be treated as such.

Grass Floor 1.zip 418 B · 0 downloads

This zip file does not include any textures.

 

[CJO Games]

Thanks for the information - though the texture file above was not being used on terrain - indeed I'm not even using terrain at the moment so, although useful information it's not really relevant to the issue - unless I'm missing something?

I've attached again the grass floor material with the needed textures and the output from the material file in .txt format - hopefully that will be everything you need...

 

Please note that these are proprietary assets and should be treated as such.

1077302805_GrassFloorOne.zip

Edited March 15 by CJO Games
typographical error

[Josh]

7 minutes ago, CJO Games said:

Thanks for the information - thought the texture file above was not being used on terrain - indeed I'm not even using terrain at the moment so, although useful information it's not really relevant to the issue - unless I'm missing something?

I've attached again the grass floor material with the needed textures and the output from the material file in .txt format - hopefully that will be everything you need...

Please note that these are proprietary assets and should be treated as such.

1077302805_GrassFloorOne.zip 28.03 MB · 0 downloads

Okay, it will work in the build that goes up later today.