Mathias Agopian wrote: [...] > I don't understand what "looking at a GL_RGB pixel in a word" means. A > word has 32 bits, GL_RGB has 24.
Well, I thought it was pretty obvious --- you load your 24 bits, in natural order, into the bottom end of a quad, exactly the same way that you'd load a 32 bit value or a 16 bit value or an 8 bit value! The only thing that makes it the slightest bit complicated is that GL_RGB is unaligned so you wouldn't be able to use a simple LDR instruction, but that's just an implementation issue. -- ┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ───── http://www.cowlark.com ───── │ │ ⍎'⎕',∊N⍴⊂S←'←⎕←(3=T)⋎M⋏2=T←⊃+/(V⌽"⊂M),(V⊝"M),(V,⌽V)⌽"(V,V←1⎺1)⊝"⊂M)' │ --- Conway's Game Of Life, in one line of APL
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