(Nicholas) > Here's what's written in the HV "Secrets of Cinelerra" manual: > > The scaling equation in Preferences is ignored by OpenGL. OpenGL always > uses linear scaling. > > Project and track sizes need to be multiples of 4 for OpenGL to work. > > To get the most acceleration, OpenGL-enabled effects must be placed > after software-only effects. All rendering before the last software-only > effect is done in software. The core Cinelerra operations like camera > and projector are of course OpenGL. >
I am unable to see the effect of this. Possibly part of my problem is that I have just upgraded to dual core and everything is faster. I could be seeing the (lack of) effect of a very low-end Open GL card on very fast hardware. Moving the sharpen effect (non openGL) from the top to bottom of the effects chain I get no peformance change. (Johannes Sixt) > Gamma is only accelerated if 'Plot histogram' is off. 'Plot Histogram' does not seem to effect the playback speed for me. Perhaps I am not getting OpenGL acceleration on gamma no matter what the parameters. Thanks Nicholas and Johannes _______________________________________________ Cinelerra mailing list Cinelerra@skolelinux.no https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
