---

LibTachyonDisplayDevice.h

Go to the documentation of this file.

/***************************************************************************
 *cr                                                                       
 *cr            (C) Copyright 1995-2019 The Board of Trustees of the           
 *cr                        University of Illinois                       
 *cr                         All Rights Reserved                        
 *cr                                                                   
 ***************************************************************************/

/***************************************************************************
 * RCS INFORMATION:
 *
 *      $RCSfile: LibTachyonDisplayDevice.h,v $
 *      $Author: johns $        $Locker:  $             $State: Exp $
 *      $Revision: 1.38 $       $Date: 2020/02/26 03:51:31 $
 *
 ***************************************************************************/
#ifndef LIBTACHYONDISPLAYDEVICE
#define LIBTACHYONDISPLAYDEVICE

#include <stdio.h>
#include "FileRenderer.h"
#include "tachyon.h"       // main Tachyon library header
#include "WKFUtils.h"      // timers

class LibTachyonDisplayDevice : public FileRenderer {
private:
  wkf_timerhandle trt_timer;  
#ifdef VMDMPI
  int parallel_group;         
#endif
  SceneHandle rtscene;        
  int inclipgroup;            
  int involtex;               
  int voltexID;               
  float xplaneeq[4];          
  float yplaneeq[4];
  float zplaneeq[4];
  rt_timerhandle buildtime;   
  rt_timerhandle rendertime;  

  void reset_vars(void);      
  void * tex_cindexmaterial(int, int); 
  void * tex_colormaterial(float *rgb, int); 
  void write_camera(void);    
  void write_lights(void);    
  void write_materials(void); 

protected:
  // assorted graphics functions
  void cylinder(float *, float *, float rad, int filled);
  void line(float *xyz1, float *xyz2);
  void point(float *xyz);
  void sphere(float *xyzr);
  virtual void sphere_array(int num, int res, float *centers, float *radii, float *colors);
  void text(float *pos, float size, float thickness, const char *str);
  void triangle(const float *, const float *, const float *, 
                const float *, const float *, const float *);
  void tricolor(const float * xyz1, const float * xyz2, const float * xyz3,
                const float * n1,   const float * n2,   const float * n3,
                const float *c1,    const float *c2,    const float *c3);
  void tristrip(int numverts, const float *cnv, int numstrips, 
                const int *vertsperstrip, const int *facets);

  // define a volumetric texture map
  virtual void define_volume_texture(int ID, int xs, int ys, int zs,
                                     const float *xplaneeq,
                                     const float *yplaneeq,
                                     const float *zplaneeq,
                                     unsigned char *texmap);

  // enable volumetric texturing, either in "replace" or "modulate" mode
  virtual void volume_texture_on(int texmode);

  // disable volumetric texturing
  virtual void volume_texture_off(void);

  // begin a group of objects to be clipped by the same set of
  // clipping planes
  void start_clipgroup(void);
  void end_clipgroup(void);
   
public: 
  LibTachyonDisplayDevice(VMDApp *);       // constructor
  virtual ~LibTachyonDisplayDevice(void);  // destructor
  virtual int open_file(const char *filename);
  virtual void close_file(void);
  void write_header(void); 
  void write_trailer(void);
}; 

#endif

---