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Man Pages
vpSetDebug(3) FreeBSD Library Functions Manual vpSetDebug(3)

vpSetDebug - enable/disable debugging options

#include <volpack.h>
vpResult
vpSetDebug(vpc, flag, value)
vpContext *vpc;
int flag;
int value;

vpc
VolPack context from vpCreateContext.
flag
Constant that specifies the debugging option to be adjusted.
value
New value for the option (boolean: 0 or 1).

vpSetDebug is used to enable or disable a debugging option in a rendering context. The debugging options cause messages to be printed during execution. These messages are probably useless without a good understanding of the source code. If the value option is 0 then the option is disabled; otherwise it is enabled. The following list summarizes all available options:
VPDEBUG_VIEW
view transform calculations
VPDEBUG_RENDER
high-level rendering stages
VPDEBUG_RBUF
intermediate image (render buffer) allocation
VPDEBUG_OPCCORRECT
opacity correction
VPDEBUG_DEPTHCUE
depth cueing
VPDEBUG_PYRAMID
pyramid construction
VPDEBUG_OCTREE
octree construction
VPDEBUG_CLSFYOCTREE
octree classification
VPDEBUG_OCTREERUNS
runs computed from octree
VPDEBUG_OCTREETRAVERSE
octree traversal
VPDEBUG_TRANSPOSE
volume transposing
VPDEBUG_COMPOSITE
compositing
The VolPack library must be compiled with the -DDEBUG compiler option for this function to have any effect.

The normal return value is VP_OK. The following error return value is possible:
VPERROR_BAD_OPTION
The flag argument is invalid.

VolPack(3), vpCreateContext(3)
VolPack

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