Invisible Quad
Author
Would it be possible to render a quad that is completly transparent? Invisible?
If so how, I need to make hidden spots that you can''t see that you can click on for special power ups.
Thanks
Matt
Sure, just draw it in a colour that has an alpha component of zero:
glColor4f(0.0f, 0.0f, 0.0f, 0.0f);
--cfmdobbie
glColor4f(0.0f, 0.0f, 0.0f, 0.0f);
--cfmdobbie
it just stays black
With the zero alpha, you would also need to enable alpha blending. An easier way would be to simply disable colour buffer writes.
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