update helpers/location to 'frosted' ui

[carveJwlIkooP6JGAAIwe30JlM.git] / camera.h

diff --git a/camera.h b/camera.h
index c1744d86f23f556deaad3f4e7c2bfc55a8f122ea..7aa1b14a92eb6b29f03338765587b3afe07dd949 100644 (file)
--- a/camera.h
+++ b/camera.h
@@ -1,7 +1,5 @@
-#ifndef CAMERA_H
-#define CAMERA_H
-
-#include "skaterift.h"
+#pragma once
+#if 0
 
 typedef struct camera camera;
 struct camera{
@@ -29,11 +27,10 @@ static void camera_lerp_angles( v3f a, v3f b, float t, v3f d ){
    d[2] = vg_lerpf(  a[2], b[2], t );
 }
 
+/* lerp position, fov, and angles */
 static void camera_lerp( camera *a, camera *b, float t, camera *d ){
    v3_lerp( a->pos, b->pos, t, d->pos );
-   d->angles[0] = vg_alerpf( a->angles[0], b->angles[0], t );
-   d->angles[1] = vg_lerpf( a->angles[1], b->angles[1], t );
-   d->angles[2] = vg_lerpf( a->angles[2], b->angles[2], t );
+   camera_lerp_angles( a->angles, b->angles, t, d->angles );
    d->fov = vg_lerpf( a->fov, b->fov, t );
 }
 
@@ -43,6 +40,16 @@ static void camera_copy( camera *a, camera *d ){
    d->fov = a->fov;
 }
 
+static void m4x3_transform_camera( m4x3f m, camera *cam ){
+   m4x3_mulv( m, cam->pos, cam->pos );
+
+   v3f v0;
+   v3_angles_vector( cam->angles, v0 );
+   m3x3_mulv( m, v0, v0 );
+   v3_normalize( v0 );
+   v3_angles( v0, cam->angles );
+}
+
 /*
  * 1) [angles, pos] -> transform 
  */
@@ -86,37 +93,4 @@ static void camera_finalize( camera *cam )
    m4x4_copy( cam->mtx.pv, cam->mtx_prev.pv );
    m4x4_mul( cam->mtx.p, cam->mtx.v, cam->mtx.pv );
 }
-
-/* 
- * http://www.terathon.com/lengyel/Lengyel-Oblique.pdf 
- */
-static void m4x4_clip_projection( m4x4f mat, v4f plane )
-{
-   v4f c = 
-   {
-      (vg_signf(plane[0]) + mat[2][0]) / mat[0][0],
-      (vg_signf(plane[1]) + mat[2][1]) / mat[1][1],
-      -1.0f,
-      (1.0f + mat[2][2]) / mat[3][2]
-   };
-
-   v4_muls( plane, 2.0f / v4_dot(plane,c), c );
-
-   mat[0][2] = c[0];
-   mat[1][2] = c[1];
-   mat[2][2] = c[2] + 1.0f;
-   mat[3][2] = c[3];
-}
-
-/*
- * Undoes the above operation
- */
-static void m4x4_reset_clipping( m4x4f mat, float ffar, float fnear )
-{
-   mat[0][2] = 0.0f; 
-   mat[1][2] = 0.0f; 
-   mat[2][2] = -(ffar + fnear) / (ffar - fnear); 
-   mat[3][2] = -2.0f * ffar * fnear / (ffar - fnear); 
-}
-
-#endif /* CAMERA_H */
+#endif