create camera and split view/proj matrices

1 files changed, 10 insertions, 4 deletions

diff --git a/src/camera.c b/src/camera.c
index c2b864d..8ec1251 100644
--- a/src/camera.c
+++ b/src/camera.c
@@ -2,10 +2,16 @@
 
 #include "maths.h"
 
-void camera_view_projection(camera *c, f32 screen_height, f32 screen_width, mat4 *out_view_proj) {
-  mat4 proj = mat4_perspective(c->fov * 3.14 / 180.0, screen_width / screen_height, 0.1, 100.0);
+camera camera_create(vec3 pos, vec3 front, vec3 up, f32 fov) {
+  camera c = { .position = pos, .front = front, .up = up, .fov = fov };
+  return c;
+}
+
+void camera_view_projection(camera *c, f32 screen_height, f32 screen_width, mat4 *out_view,
+                            mat4 *out_proj) {
+  mat4 proj = mat4_perspective(c->fov, screen_width / screen_height, 0.1, 100.0);
   vec3 camera_direction = vec3_add(c->position, c->front);
   mat4 view = mat4_look_at(c->position, camera_direction, c->up);
-  mat4 out_mat = mat4_mult(view, proj);
-  *out_view_proj = out_mat;
+  *out_view = view;
+  *out_proj = proj;
 }
\ No newline at end of file