Hello. I need to read only a few texels from a texture. Something like glGetTexImage, but only for a small portion of the texture.
Thanks
Hello. I need to read only a few texels from a texture. Something like glGetTexImage, but only for a small portion of the texture.
Thanks
Originally posted by fuxifuxi:
[b]
Hello. I need to read only a few texels from a texture. Something like glGetTexImage, but only for a small portion of the texture.
Thanks[/b]
There is no glGetTexSubImage. Render selected part of your texture with orthographic projection and read it back with glReadPixels.