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vlset_opmap

NAME

vlset_opmap - Set the opacity map of a given variable

SYNOPSIS

#include <parvox.h>

void vlset_opmap(vlvolume *vol, vlvariable *variable, float *omap)

DESCRIPTION

vlset_opmap() sets variable->opmapptr to omap which is a pointer pointing to an array of 256 floating values in the range of 0.0 to 1.0. If variable->colormapptr is set (by vlset_colormap()), vlset_opmap() multiples the opacity values to the corresponding color values in the colormap and stores the results in variable->colormap. The opacity map has to be set for direct volume rendering; it doesn't matter whether vlset_render_type() or vlset_opmap() is called first.

vlset_opmap

NAME

SYNOPSIS

DESCRIPTION

SEE ALSO