View Full Version : why glLogicOp no use RGBA?
10-31-2004, 03:59 PM
"Logical pixel operations are not applied to RGBA color buffers."
Is mean only use color index?
opengl driver applied to RGBA glLogicOp difficult?or will give rise to miss?
10-31-2004, 04:07 PM
You must be looking at an old spec. By at least OpenGL 1.2 logic ops were allowed on RGBA frame buffers.
10-31-2004, 04:15 PM
Originally posted by sqrt[-1]:
You must be looking at an old spec. By at least OpenGL 1.2 logic ops were allowed on RGBA frame buffers.:eek: I look at msdn and red book of opengl 1.2
I know msdn is older.but red book...is my miss?
10-31-2004, 06:51 PM
It is in the blue book 1.2 and the red book 1.2
Look for GL_COLOR_LOGIC_OP on google and if you are using the red book 1.2 look on page 449.
You just need to do glEnable(GL_COLOR_LOGIC_OP);
Powered by vBulletin® Version 4.2.0 Copyright © 2013 vBulletin Solutions, Inc. All rights reserved.