X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fcamera.cpp;h=98b7598ca16ffa011d1849881ac0d67117bff45f;hp=ad1a3e946a1055c5367fc4a9c4592e171c90dfc1;hb=f14435e58bfa0fa697a06ba9a454bb30cd37d9d8;hpb=02dad9779326e5b8acc1fddbaec3a2f36da15c16

diff --git a/source/camera.cpp b/source/camera.cpp
index ad1a3e94..98b7598c 100644
--- a/source/camera.cpp
+++ b/source/camera.cpp
@@ -1,14 +1,6 @@
-/* $Id$
-
-This file is part of libmspgl
-Copyright © 2010  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
 #include <cmath>
 #include "camera.h"
 #include "matrix.h"
-#include "projection.h"
 
 namespace Msp {
 namespace GL {
@@ -21,11 +13,7 @@ Camera::Camera():
 	position(0, 0, 0),
 	look_dir(0, 0, -1),
 	up_dir(0, 1, 0)
-{
-	for(unsigned i=0; i<16; ++i)
-		matrix[i] = (i%5 ? 0 : 1);
-	matrix[10] = -1;
-}
+{ }
 
 void Camera::set_field_of_view(float f)
 {
@@ -108,14 +96,8 @@ Vector4 Camera::unproject(const Vector4 &p) const
 
 void Camera::apply() const
 {
-	float h = tan(fov/2)*2*clip_near;
-
-	matrix_mode(PROJECTION);
-	load_identity();
-	frustum_centered(h*aspect, h, clip_near, clip_far);
-
-	matrix_mode(MODELVIEW);
-	load_matrix(matrix);
+	MatrixStack::projection() = Matrix::perspective(fov, aspect, clip_near, clip_far);
+	MatrixStack::modelview() = matrix;
 }
 
 void Camera::compute_matrix()
@@ -124,22 +106,30 @@ void Camera::compute_matrix()
 	float y = look_dir.z*up_dir.x-look_dir.x*up_dir.z;
 	float z = look_dir.x*up_dir.y-look_dir.y*up_dir.x;
 	float len = sqrt(x*x+y*y+z*z);
+	double mdata[16];
+
+	mdata[0] = x/len;
+	mdata[4] = y/len;
+	mdata[8] = z/len;
+
+	mdata[1] = mdata[4]*look_dir.z-mdata[8]*look_dir.y;
+	mdata[5] = mdata[8]*look_dir.x-mdata[0]*look_dir.z;
+	mdata[9] = mdata[0]*look_dir.y-mdata[4]*look_dir.x;
 
-	matrix[0] = x/len;
-	matrix[4] = y/len;
-	matrix[8] = z/len;
+	mdata[2] = -look_dir.x;
+	mdata[6] = -look_dir.y;
+	mdata[10] = -look_dir.z;
 
-	matrix[1] = matrix[4]*look_dir.z-matrix[8]*look_dir.y;
-	matrix[5] = matrix[8]*look_dir.x-matrix[0]*look_dir.z;
-	matrix[9] = matrix[0]*look_dir.y-matrix[4]*look_dir.x;
+	mdata[12] = -position.x*mdata[0]-position.y*mdata[4]-position.z*mdata[8];
+	mdata[13] = -position.x*mdata[1]-position.y*mdata[5]-position.z*mdata[9];
+	mdata[14] = -position.x*mdata[2]-position.y*mdata[6]-position.z*mdata[10];
 
-	matrix[2] = -look_dir.x;
-	matrix[6] = -look_dir.y;
-	matrix[10] = -look_dir.z;
+	mdata[3] = 0;
+	mdata[7] = 0;
+	mdata[11] = 0;
+	mdata[15] = 1;
 
-	matrix[12] = -position.x*matrix[0]-position.y*matrix[4]-position.z*matrix[8];
-	matrix[13] = -position.x*matrix[1]-position.y*matrix[5]-position.z*matrix[9];
-	matrix[14] = -position.x*matrix[2]-position.y*matrix[6]-position.z*matrix[10];
+	matrix = mdata;
 }
 
 } // namespace GL