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Specify camera FOV instead of viewport height

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This commit is contained in:
Camden Dixie O'Brien
2025-09-23 15:36:08 +01:00
parent 90240ee5ad
commit bb6c1683b2
3 changed files with 13 additions and 5 deletions
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6
demo.c
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@@ -8,7 +8,7 @@
#define W 800
#define H 600
#define FOCAL_LEN 1.0
#define VIEWPORT_H 2.0
#define FOV 120
#define SAMPLES_PER_PIXEL 100
#define NELEMS(arr) (sizeof(arr) / sizeof(arr[0]))
@@ -31,8 +31,8 @@ static pix_t pixbuf[W * H];
int main()
{
img_t img = { .pix = pixbuf };
camera_t camera = camera_init(
camera_pos, FOCAL_LEN, VIEWPORT_H, W, H, SAMPLES_PER_PIXEL);
camera_t camera
= camera_init(camera_pos, FOCAL_LEN, FOV, W, H, SAMPLES_PER_PIXEL);
camera_render(&camera, scene, NELEMS(scene), &img);
ff_write(STDOUT_FILENO, img);