Debug (3)

#include <volpack.h>

\$1 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)