HP sv6 manual Optimizing image quality, Accumulate Mode See, Method #1, Method #2

installation and user information

optimization

The default is for fast zoom to be enabled. To put it back to its original setting:

unset HPOGL_DSM_DISABLE_FAST_ZOOM

The environment variable HPOGL_OPT_CACHE_MATRICES can be used with any application, but has the most impact on applications that benefit from matrix caching. Matrix caching is an optional client side optimization that detects successive glPushMatrix(), glMultMatrix(), render, render, glPopMatrix()sequences where the exact same matrix is redundantly sent.

To enable this feature, set the environment variable before running the application:

export HPOGL_OPT_CACHE_MATRICES=1

•Optimizing image quality

By adjusting the number of pipes used for accumulation (using setpipes) and turning on hardware scene anti-aliasing (described below), you can maximize the image quality.

Accumulate Mode - See the

/opt/graphics/OpenGL/sv/doc/README.*setpipes files for instructions on specifying an accumulate mode screen layout. This can be done with either a GUI or via command line options.

There are two methods of turning scene anti-aliasing on and off for fx10 graphics cards in your hp visualization center sv6 workstations:

Method #1:

The environment variables, HPOGL_FORCE_SCENE_AA and HPOGL_FORCE_SCENE_AA_DBL can be used by any application without any code changes. The first one forces all 24-bit OpenGL rendering to be scene anti-aliased and the second one restricts scene anti-aliasing to only double buffered visuals.

This will turn on scene anti-aliasing for all OpenGL applications. To enable one of these, add it to the Environment section of the /etc/X11/X0screens file then restart the X server.

Method #2:

An application can turn on/off scene anti-aliasing on the fly by using the OpenGL calls:

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