vpEnable man page

vpEnable — enable or disable options

Synopsis

#include <volpack.h>

vpResult

vpEnable(vpc, option, value)

vpContext *vpc;

int option;

int value;

Arguments

vpc

VolPack context from vpCreateContext.

option

Constant that specifies the option to be adjusted.

value

New value for the option (boolean: 0 or 1).

Description

vpEnable is used to enable or disable boolean options in a rendering context.  If the value option is 0 then the option is disabled; otherwise it is enabled.  The following list summarizes all available options:

VP_LIGHT0
VP_LIGHT1
VP_LIGHT2
VP_LIGHT3
VP_LIGHT4
VP_LIGHT5

Enable the corresponding light source (see vpSetLight(3)). Default: VP_LIGHT0 is enabled, and all others are disabled.

VP_LIGHT_BOTH_SIDES

Enable two-sided lighting (see vpSetLight(3)). Default: disabled

VP_REVERSE_SURFACE_SIDES

Reverse the definition of interior and exterior surfaces (see vpSetMaterial(3)). Default: disabled

VP_DEPTH_CUE

Enable depth cueing (see vpSetDepthCueing(3)). Default: disabled

VP_VIEW_X_AXIS
VP_VIEW_Y_AXIS
VP_VIEW_Z_AXIS

Enable computing a preclassified volume for the corresponding major viewing axis (see vpClassifyVolume(3)). Default: enabled

VP_SHADOW

Enable rendering shadows (see vpSetShadowLookupShader(3)). Default: disabled

VP_CLAMP_SHADE_TABLE

Enable clamping the color components in a shade table to the range 0.0-255.0.  This option affects vpShadeTable().  Default: enabled

Errors

The normal return value is VP_OK.  The following error return value is possible:

VPERROR_BAD_VALUE

The option argument is invalid.

See Also

VolPack(3), vpCreateContext(3)

Referenced By

VolPack(3), vpSeti(3), vpShadeTable(3).

VolPack