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#include "camera.h"
#include "maths.h"
Camera Camera_Create(Vec3 pos, Vec3 front, Vec3 up, f32 fov) {
Camera c = { .position = pos, .front = front, .up = up, .fov = fov };
return c;
}
Mat4 Camera_ViewProj(Camera *c, f32 lens_height, f32 lens_width, Mat4 *out_view, Mat4 *out_proj) {
Mat4 proj = mat4_perspective(c->fov, lens_width / lens_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);
if (out_view) {
*out_view = view;
}
if (out_proj) {
*out_proj = proj;
}
return mat4_mult(view, proj);
}
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