parvol.h

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/*
 * parvol.h - Volume rendering definitions etc.
 *
 * (C) Copyright 1994-2022 John E. Stone
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * $Id: parvol.h,v 1.6 2022/02/18 17:55:28 johns Exp $
 *
 */

typedef struct {
  RT_OBJECT_HEAD
  vector min;      
  vector max;      
  flt ambient;     
  flt diffuse;     
  flt opacity;     
  int samples;     
  flt (* evaluator)(flt, flt, flt); 
} parvol;

parvol * newparvol();
color par_volume_texture(vector *, texture *, ray *);