diff options
| -rw-r--r-- | ray.c | 6 |
1 files changed, 3 insertions, 3 deletions
@@ -102,7 +102,7 @@ trace(const float s[3], const float d[3], float pixel[3], int n, unsigned int ma static void trace_line(int l, unsigned char *buf) { - static const float s[3] = {0, 0, 0}; + static const float s[3] = {0, 0, 8}; for(int i = 0; i < WIDTH; ++i, buf += 4) { float pixel[3] = { 0, 0, 0 }; @@ -138,8 +138,8 @@ initialize_trace_vectors(void) { for(int y = 0; y < HEIGHT; ++y) { for(int x = 0; x < WIDTH; ++x) { float* d = trace_vectors[y][x]; - d[0] = ((float)x / WIDTH - 0.5f) * 2.0f; - d[1] = ((float)y / HEIGHT - 0.5f) * 2.0f * ((float)HEIGHT / WIDTH); + d[0] = ((float)x / WIDTH - 0.5f) * 0.5f; + d[1] = ((float)y / HEIGHT - 0.5f) * 0.5f * ((float)HEIGHT / WIDTH); d[2] = -1; normalize(d); } |