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Gfxformatr8g8b8a8 = D3dfmt_a8r8g8b8

by Eric Preisz · in Torque Game Engine Advanced · 08/23/2007 (6:52 am) · 3 replies

I notied that GFXFormatR8G8B8A8 maps to D3DFMT_A8R8G8B8. The bit order difference is likely to confuse someone, caught me for a second.

Thanks.
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    Torque 3D Owner Pat Wilson
    #1
    08/23/2007 (10:58 am)
    Eric,
    This is true, but D3D does not have that byte ordering as an option. The re-ordering of bytes happens in the texture manager when the texture is uploaded. If the Swizzle class is in TGEA, you can use it to easily do bit-swapping.

    Employee Eric Preisz
    GarageGames
    #2
    08/23/2007 (2:37 pm)
    Yea, it's not really a problem to someone from load time. The confusion is when you lock a dynamic texture. Now, I should have remembered that D3D doesn't have that format, but I always forget because I know they have those darn argb macros lying around.

    Not a big deal really, just an opportunity for beginner, who is locking a texture, to get confused.

    Thanks for your time.

    Torque 3D Owner Pat Wilson
    #3
    08/24/2007 (11:13 am)
    Yeah GL, and D3D use reversed byte orderings. It's a total pain because I don't think the tgea textures differentiate between what order the bytes are in and what format they are in. This is very annoying.