Luminance (L8) DDS files incorrectly handled

Scripting Issues
1

Panda supports loading DDS textures since 1.6 version and that’s great!

However it seems to always consider that DDS files have RGBA format.

Here are two DDS files:

  • first one has RGBA format: dl.dropbox.com/u/3545118/rgba.dds
    Open it in DirectX Texture Tool, you’ll read “rgba.dds (A8R8G8B8, 100%)” and see yellow & black stripes

  • second one has Luminance format: dl.dropbox.com/u/3545118/luminance.dds
    Open it in DirectX Texture Tool, you’ll read “luminance.dds (L8, Mip1 of 10, 100%)” and see white and gray stripes

When I try to load the “luminance.dds” texture on a mesh, I can see red stripes whereas it should be gray stripes: the luminance channel has been interpreted as the “red” channel of a RGBA texture.

I tried:

 Texture.setFormat(Texture.FLuminance)

but didn’t get correct result. Also tried FLuminanceAlpha, FLuminanceAlphamask and even FRed but without success.

-David

2

You are correct; it is a bug. I have just committed a fix to the cvs trunk. I tagged this fix to be part of the 1.7.1 release.

Thanks!
David

3

Wow, that’s what I call efficiency!