PDA

View Full Version : GL_EXT_point_parameters



softland_gh
01-11-2002, 12:02 PM
I have a relatively old graphics card, but when I query about the extensions it supports, it returns GL_EXT_point_parameters among other extensions, but when I try to use this extensions it doesn't work like it's supposed to. Is there anything that enables or disables this extention? What could I have missed?

Jambolo
01-13-2002, 03:23 PM
Just a guess...you have a Savage4? It doesn't work on my Savage4, though it is listed as a supported extension.

softland_gh
01-13-2002, 11:29 PM
No. It's not Savage4. It's from ASUS, an AGP-V3000ZXTV, with RIVA chip. Well, I managed to get it partially working. The size of the point changes when its depth changes, but its Alpha color component, doesn't change.

dorbie
01-13-2002, 11:38 PM
Have you enabled blending?

softland_gh
01-13-2002, 11:55 PM
Yes, blending is enabled. The blending function is set to GL_SRC_ALPHA, for source fragments, and GL_ONE_MINUS_SRC_ALPHA, for destination fragments. In addition, I tried it with both GL_POINT_SMOOTH enabled and disabled.