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Diffstat (limited to 'src/camera.cpp')
| -rw-r--r-- | src/camera.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/camera.cpp b/src/camera.cpp index e9e5f60..6950fec 100644 --- a/src/camera.cpp +++ b/src/camera.cpp @@ -47,6 +47,10 @@ void camera::rotate_y(float theta) { auto h = tan(deg_to_rad(fov) / 2.f); auto viewport_height = 2.f * h; + auto viewport_width = viewport_height * aspect_ratio; + + horizontal = focus_distance * viewport_width * right; + vertical = focus_distance * viewport_height * up; vertical = focus_distance * viewport_height * up; first_pixel = position - horizontal / 2.0 - vertical / 2.0 + focus_distance * forward; |