View Full Version : Textures

08-09-2001, 05:33 AM
I need help with textures. The last parameter to glTexImage2D(), a pointer to the image data - this data is copied to the texture, right? Or IS this the texture data? I thought that texture data is in video memory. So the data passed to glTexImage2D() is only copied?
So, do I HAVE TO pass a pointer or can I pass just NULL when I copy other data to the texture with glTexSubImage2D() later on?

Rob The Bloke
08-09-2001, 09:18 AM
The data is copied from the pointer address. If you pass NULL in, there will be no update of the texture.

08-10-2001, 05:11 AM