/usr/include/tachyon/parvol.h is in libtachyon-dev 0.99~b2+dfsg-0.3.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | /*
* parvol.h - Volume rendering definitions etc.
*
*
* $Id: parvol.h,v 1.5 2011/02/05 08:10:11 johns Exp $
*/
typedef struct {
RT_OBJECT_HEAD
vector min; /**< minimum axis-aligned box coordinate */
vector max; /**< maximum axis-aligned box coordinate */
flt ambient; /**< ambient lighting coefficient */
flt diffuse; /**< diffuse lighting coefficient */
flt opacity; /**< transmissive surface factor */
int samples; /**< number of volumetric samples to take */
flt (* evaluator)(flt, flt, flt); /**< sample fctn pointer */
} parvol;
parvol * newparvol();
color par_volume_texture(vector *, texture *, ray *);
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