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From: shangping on 18 Jun 2010 17:54
Hello,
I am trying to plot some figures really fast using pcolor (which is an actually 2D surface). I tried to use the opengl hardware acceleration but got nothing improvement.

using opengl software:
K>> opengl software
K>> opengl info

Version = 1.1.0
Vendor = Microsoft Corporation
Renderer = GDI Generic
MaxTextureSize = 1024
Visual = 09 (RGB 32 bits(08 08 08 00) zdepth 32, Generic, Opengl, Double Buffered, Window)
Software = true
# of Extensions = 3

Driver Bug Workarounds:
OpenGLBitmapZbufferBug = 1
OpenGLWobbleTesselatorBug = 0
OpenGLLineSmoothingBug = 0
OpenGLDockingBug = 0
OpenGLClippedImageBug = 0
OpenGLEraseModeBug = 0

K>> tic,pcolor(x_pos,y_pos,data),shading interp,axis ij,axis equal,colorbar,drawnow,toc
Elapsed time is 0.292876 seconds.
K>> tic,pcolor(x_pos,y_pos,data),shading interp,axis ij,axis equal,colorbar,drawnow,toc
Elapsed time is 0.255865 seconds.
K>> tic,pcolor(x_pos,y_pos,data),shading interp,axis ij,axis equal,colorbar,drawnow,toc
Elapsed time is 0.265222 seconds.

try opengl hardware acceleration:
K>> opengl hardware
K>> opengl info

Version = 1.4.0 - Build 7.14.10.4957
Vendor = Intel
Renderer = Intel Bear Lake B
MaxTextureSize = 2048
Visual = 04 (RGB 32 bits(08 08 08 08) zdepth 16, Hardware Accelerated, Opengl, Double Buffered, Window)
Software = false
# of Extensions = 50

Driver Bug Workarounds:
OpenGLBitmapZbufferBug = 0
OpenGLWobbleTesselatorBug = 0
OpenGLLineSmoothingBug = 0
OpenGLDockingBug = 0
OpenGLClippedImageBug = 0
OpenGLEraseModeBug = 0

K>> tic,pcolor(x_pos,y_pos,data),shading interp,axis ij,axis equal,colorbar,drawnow,toc
Elapsed time is 0.295664 seconds.
K>> tic,pcolor(x_pos,y_pos,data),shading interp,axis ij,axis equal,colorbar,drawnow,toc
Elapsed time is 0.272162 seconds.
K>> tic,pcolor(x_pos,y_pos,data),shading interp,axis ij,axis equal,colorbar,drawnow,toc
Elapsed time is 0.267038 seconds.

I did not see any improvement and I tried it on some other computers, nothing new is found.

Anyone can give me some hints? Thanks
From: us on 18 Jun 2010 20:29
"shangping "
> Anyone can give me some hints? Thanks

do NOT repeat your OPs without looking at what has been shown to you earlier(!)...

http://www.mathworks.com/matlabcentral/newsreader/view_thread/284945#755724

us
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Next: How to adjust only one limit for an axis