chore: Render coord conversion, Vector replace float to double

avem-labs · Apr 15, 2018 · 1299ff3 · 1299ff3
1 parent 8bf1fbf
commit 1299ff3
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Showing 3 changed files with 5 additions and 5 deletions.
diff --git a/ol3d_render.c b/ol3d_render.c
@@ -6,7 +6,7 @@ unsigned char *render_target = &render_buffer;
 #define AABB_MIN(x, y, z)   (fmin((x), fmin((y), (z))))
 #define AABB_MAX(x, y, z)   (fmax((x), fmax((y), (z))))
 #define isLeft(_a, _b, _p)  (((_b->x-_a->x) * (_p->y-_a->y) - (_b->y-_a->y) * (_p->x-_a->x))>0)
-#define COORD(x)            (SCREEN_SIZE * ((x) + 1.0) * 0.5)
+#define COORD(x)            (SCREEN_SIZE * ((x)*0.5 + 0.5))
 
 static unsigned char inTriangle(
     ol3d_Vector3_t *a,

diff --git a/ol3d_vector.c b/ol3d_vector.c
@@ -34,15 +34,15 @@ ol3d_Vector3_t ol3d_vector_subtract(const ol3d_Vector3_t *a, const ol3d_Vector3_
     };
 }
 
-ol3d_Vector3_t ol3d_vector_multiply(const ol3d_Vector3_t *a, float b) {
+ol3d_Vector3_t ol3d_vector_multiply(const ol3d_Vector3_t *a, double b) {
     return (ol3d_Vector3_t) {
         .x = a->x * b,
         .y = a->y * b,
         .z = a->z * b
     };
 }
 
-ol3d_Vector3_t ol3d_vector_divide(const ol3d_Vector3_t *a, float b) {
+ol3d_Vector3_t ol3d_vector_divide(const ol3d_Vector3_t *a, double b) {
     return (ol3d_Vector3_t) {
         .x = a->x / b,
         .y = a->y / b,

diff --git a/ol3d_vector.h b/ol3d_vector.h
@@ -12,8 +12,8 @@ extern double           ol3d_vector_length(const ol3d_Vector3_t *a);
 extern ol3d_Vector3_t   ol3d_vector_normalize(const ol3d_Vector3_t *a);
 extern ol3d_Vector3_t   ol3d_vector_add(const ol3d_Vector3_t *a, const ol3d_Vector3_t *b);
 extern ol3d_Vector3_t   ol3d_vector_subtract(const ol3d_Vector3_t *a, const ol3d_Vector3_t *b);
-extern ol3d_Vector3_t   ol3d_vector_multiply(const ol3d_Vector3_t *a, float b);
-extern ol3d_Vector3_t   ol3d_vector_divide(const ol3d_Vector3_t *a, float b);
+extern ol3d_Vector3_t   ol3d_vector_multiply(const ol3d_Vector3_t *a, double b);
+extern ol3d_Vector3_t   ol3d_vector_divide(const ol3d_Vector3_t *a, double b);
 extern ol3d_Vector3_t   ol3d_vector_cross(const ol3d_Vector3_t *a, const ol3d_Vector3_t *b);
 
 #endif