SyntaxBomb - Indie Coders

here i am trying to color each grass (textured quad) with the same "grey color" than the the "grey color" of the colormap (which is blended on top of the diffuse texture)



with bilinear filtering of textures, i noticed that something was wrong but not clearly
but without bilinear filtering of textures, the wrongness is clear !

now i have to find the error in the code

debugging using colors

with bilinear filtering :


without bilinear filtering :