Quote:Original post by KumGame07
Blending a texture with geometry color will work only if the texture has alpha channel in it. If the texture's alpha is 1 always, I don't think that BLENDing is going to work out for you.

However you can try blending the texture color with a constant color by setting the texture environment mode to GL_BLEND.

	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_BLEND );	glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, color);

Now I am getting closer results but still off.


If I pass the following array:
GLfloat fCoolColor[] = { 1.0f, 1.0f, 1.0f, 0.0f };
glTexEnvfv( GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, fCoolColor );
My logo becomes pure white (alpha is ignored).


If I pass:
GLfloat fCoolColor[] = { 0.0f, 0.0f, 0.0f, 0.0f };
glTexEnvfv( GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, fCoolColor );
My logo becomes inverted (alpha still ignored).


My image has an alpha channel; it has transparent parts and partially transparent parts.



I will remember these effects for later as they are nice, but for now I just want this image to be partially transparent.


Thank you,
L. Spiro