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Ahvolon[ F-Bytes ]
12-23-2003, 03:37 AM
Hello !

At first I want to excuse my grammar but English is not my nativ language.

Is there any possibility to implement own texture filtering methods into opengl ? I once saw a demo where something like that was done with direct3d.

I would be very pleased if there would be anybody answering me.
Thanks.

mw
12-23-2003, 04:09 AM
You could use texture lookups (with GL_NEAREST filtered textures) in fragment programs and implement your "own" filtering method. What effect do you want to achieve?

Ahvolon[ F-Bytes ]
12-23-2003, 11:20 AM
I'd like to implement my own texture filter "into" opengl without writing a software renderer. I only tought of a project to learn from, it was only an idea.

codemonkey76
12-24-2003, 03:55 AM
i am also looking for a way to do this, but one that would work on nv2x and higher cards.

an example was posted in another thread here: http://www.opengl.org/discussion_boards/ubb/Forum3/HTML/011143.html
that might allow you to do it in FX class hardware, but so far i have seen no advice as to how one might tackle it in pre FX hardware (it's probably not possible).