reuse draw_camera() in axial variant

src/rendering/twn_draw.c

@@ -491,31 +491,19 @@ DrawCameraFromPrincipalAxesResult draw_camera_from_principal_axes(Vec3 position,
     sincosf(yaw + (float)M_PI_2, &yaws, &yawc);
     sincosf(pitch, &pitchs, &pitchc);
 
-    Camera const camera = {
+    Vec3 const direction = vec3_norm(((Vec3){
-        .fov = fov,
+        yawc * pitchc,
-        .pos = position,
+        pitchs,
-        .target = vec3_norm(((Vec3){
+        yaws * pitchc,
-            yawc * pitchc,
+    }));
-            pitchs,
-            yaws * pitchc,
-        })),
-        .up = (Vec3){0, 1, 0},
-        .viewbox = {
-            (Vec2){ 1/-zoom, 1/zoom },
-            (Vec2){ 1/zoom, 1/-zoom }
-        },
-    };
 
-    if (!orthographic)
+    Vec3 const up = (Vec3){0, 1, 0};
-        camera_projection_matrix = camera_perspective(&camera);
-    else
-        camera_projection_matrix = camera_orthographic(&camera);
 
-    camera_look_at_matrix = camera_look_at(&camera);
+    draw_camera(position, direction, up, fov, zoom);
 
     return (DrawCameraFromPrincipalAxesResult) {
-        .direction = camera.target,
+        .direction = direction,
-        .up = camera.up,
+        .up = up,
     };
 }