NAME
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)