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     vec_t   t;
  23     color_t c;
  24 };
  25 typedef struct vert vert_t;
  26
  27
  28 /*
  29  * Initialize a vertex with a point vector, normal, and a color.
  30  */
  31 INLINE_MAYBE
  32 void vert_init(vert_t* r, vec_t v, vec_t n, vec_t t, color_t c)
  33 {
  34     r->v = v;
  35     r->n = n;
  36     r->t = t;
  37     r->c = c;
  38 }
  39
  40
  41 /*
  42  * Create a new vertex with a point vector.
  43  */
  44 INLINE_MAYBE
  45 vert_t vert_new(vec_t v)
  46 {
  47     vert_t r;
  48     vert_init(&r, v, VEC_ZERO, VEC_ZERO, COLOR_WHITE);
  49     return r;
  50 }
  51
  52 /*
  53  * Create a new vertex from vector components.
  54  */
  55 INLINE_MAYBE
  56 vert_t vert_new2(scal_t x, scal_t y, scal_t z)
  57 {
  58     return vert_new(vec_new(x, y, z));
  59 }
  60
  61 #define VERT_ZERO vert_new(VEC_ZERO)
  62
  63
  64 #endif // _VERT_H_
  65