LA8 texture format

[alexei.garbuzenko]

When I try to use LA8 textures those are treated as RG8 meaning that I can't use its alpha channel without shader modification.

Is there a way to use such textures without own shaders/conversion to RGBA8 (2x size waste)?

[frustum]

When I try to use LA8 textures those are treated as RG8 meaning that I can't use its alpha channel without shader modification.

Is there a way to use such textures without own shaders/conversion to RGBA8 (2x size waste)?

 

Use DXT3/DXT5 formats in this case or if there are compression artifacts then RGBA4.

A8/LA8 textures aren't exist in Direct3D10/11.

[alexei.garbuzenko]

That sounds like a huge waste of video memory. I'd better use own shaders.