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, texture coordinates,
  30  * and a color.
  31  */
  32 INLINE_MAYBE
  33 void vert_init(vert_t* r, vec_t v, vec_t n, vec_t t, color_t c)
  34 {
  35     r->v = v;
  36     r->n = n;
  37     r->t = t;
  38     r->c = c;
  39 }
  40
  41
  42 /*
  43  * Create a new vertex with a point vector.
  44  */
  45 INLINE_MAYBE
  46 vert_t vert_new(vec_t v)
  47 {
  48     vert_t r;
  49     vert_init(&r, v, VEC_ZERO, VEC_ZERO, COLOR_WHITE);
  50     return r;
  51 }
  52
  53 /*
  54  * Create a new vertex from vector components.
  55  */
  56 INLINE_MAYBE
  57 vert_t vert_new2(scal_t x, scal_t y, scal_t z)
  58 {
  59     return vert_new(vec_new(x, y, z));
  60 }
  61
  62 #define VERT_ZERO vert_new(VEC_ZERO)
  63
  64
  65 #endif // _VERT_H_
  66