Dogcows Code - chaz/rasterize/blob - vert.h

   1
   2 /*
   3  * CS5600 University of Utah
   4  * Charles McGarvey
   5  * mcgarvey@eng.utah.edu
   6  */
   7
   8 #ifndef _VERT_H_
   9 #define _VERT_H_
  10
  11 #include "color.h"
  12 #include "vec.h"
  13
  14
  15 /*
  16  * A vertex is a point, a normal, and a color.
  17  */
  18 struct vert
  19 {
  20     vec_t   v;
  21     vec_t   n;
  22     color_t c;
  23 };
  24 typedef struct vert vert_t;
  25
  26
  27 /*
  28  * Initialize a vertex with a point vector, normal, and a color.
  29  */
  30 INLINE_MAYBE
  31 void vert_init(vert_t* r, vec_t v, vec_t n, color_t c)
  32 {
  33     r->v = v;
  34     r->n = n;
  35     r->c = c;
  36 }
  37
  38
  39 /*
  40  * Create a new vertex with a point vector.
  41  */
  42 INLINE_MAYBE
  43 vert_t vert_new(vec_t v)
  44 {
  45     vert_t r;
  46     vert_init(&r, v, VEC_ZERO, COLOR_WHITE);
  47     return r;
  48 }
  49
  50 /*
  51  * Create a new vertex from vector components.
  52  */
  53 INLINE_MAYBE
  54 vert_t vert_new2(scal_t x, scal_t y, scal_t z)
  55 {
  56     return vert_new(vec_new(x, y, z));
  57 }
  58
  59 #define VERT_ZERO vert_new(VEC_ZERO)
  60
  61
  62 #endif // _VERT_H_
  63