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IV. UTILITIES & DRIVERS
Dynamic Buffer Option - Number of Sub-Buffers
Each DMA buffer is subdivided into sub-buffers which are used in conjunction with
an Interrupt DMA mechanism to reduce latency in the system. The number of sub-
buffers can be set here, setting it to 2 will disable the interrupt mechanism. For more
information, see the notes on the GlintDMA.NumberOfSubBuffers registry variable.
Disable Fast Clear Planes
Checking this box will disable the use of the fast Depth Clear planes and is equiva-
lent to setting the environment variable GLINT_DONT_USE_FCP to TRUE. This
option should be used in cases where the Depth buffer needs to be read back into the
application..
Disable Delta
Checking this tick box will prevent OpenGL using the GLINT DELTA triangle setup
chip on 3DP-V500TX based boards. This is useful for performance comparisons.
Draw Line Endpoints
This option when set can improve the legibility of text rendered by some applications
using stroke fonts, such as ProEngineer.
Force Nearest Neighbour Texturing
Setting this registry value will ensure that OpenGL only performs nearest neighbour
texturing operations. In some applications this can give a performance, though in
some cases using a lower quality texture filter. Note that textures will still be ren-
dered with perspective correction. Tick this box if you are happy with the perfor-
mance/texturing quality that is achieved with your application.
Enable Texture Compression
Setting this registry value will force OpenGL to shrink 2D texture maps as they are
loaded to reduce the memory needed to store them. Texture maps are halved in both
x and y dimensions so that they require a quarter of the original memory. The setting
has no effect on 1D or paletted texture maps. This setting applies to all hardware
configurations.
Disable MipMapping
This variable is only relevant to the GLINT ASUS 3DP-V500TX . Checking this tick
box will prevent OpenGL from allowing mip-map texture filtering to be enabled.
This option will override mip-map filtering settings of an OpenGL application, forc-
ing the allowed filtering to be either GL_LINEAR or GL_NEAREST. These two
filtering options are rendered much faster than the mip-map filtering option on the
GLINT ASUS 3DP-V500TX.
Gamma Correction Adjustment
The gamma correction adjustment affects the entire screen display. The default gamma
value is 1.0 and the allowable range of floating point values is 0.3 to 4.0. Any new
user-defined value will take effect when the Apply or OK button are selected.
ASUS 3DP-V500TX
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