X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fcamera.cpp;h=b3cedbc62ad628813b5eee552302a2151ea586c1;hp=c63fc9307f646e0ae559396d8eac79d9f6d32a7c;hb=HEAD;hpb=75adf0a90054f4f418663b7d347260cf31b6c046

diff --git a/source/camera.cpp b/source/camera.cpp
deleted file mode 100644
index c63fc930..00000000
--- a/source/camera.cpp
+++ /dev/null
@@ -1,146 +0,0 @@
-/* $Id$
-
-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 {
-
-Camera::Camera():
-	fov(M_PI/4),
-	aspect(4.0/3.0),
-	clip_near(0.1),
-	clip_far(10),
-	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)
-{
-	fov = f;
-}
-
-void Camera::set_aspect(float a)
-{
-	aspect = a;
-}
-
-void Camera::set_depth_clip(float n, float f)
-{
-	clip_near = n;
-	clip_far = f;
-}
-
-void Camera::set_position(const Vector3 &p)
-{
-	position = p;
-	compute_matrix();
-}
-
-void Camera::set_up_direction(const Vector3 &u)
-{
-	float len = sqrt(u.x*u.x+u.y*u.y+u.z*u.z);
-
-	up_dir.x = u.x/len;
-	up_dir.y = u.y/len;
-	up_dir.z = u.z/len;
-
-	compute_matrix();
-}
-
-void Camera::set_look_direction(const Vector3 &l)
-{
-	float len = sqrt(l.x*l.x+l.y*l.y+l.z*l.z);
-
-	look_dir.x = l.x/len;
-	look_dir.y = l.y/len;
-	look_dir.z = l.z/len;
-
-	compute_matrix();
-}
-
-void Camera::look_at(const Vector3 &p)
-{
-	set_look_direction(Vector3(p.x-position.x, p.y-position.y, p.z-position.z));
-}
-
-Vector3 Camera::project(const Vector4 &p) const
-{
-	float near_h = tan(fov/2)*clip_near;
-	float near_w = near_h*aspect;
-	float z_range = clip_far-clip_near;
-
-	float eye_x = matrix[0]*p.x+matrix[4]*p.y+matrix[8]*p.z+matrix[12]*p.w;
-	float eye_y = matrix[1]*p.x+matrix[5]*p.y+matrix[9]*p.z+matrix[13]*p.w;
-	float eye_z = matrix[2]*p.x+matrix[6]*p.y+matrix[10]*p.z+matrix[14]*p.w;
-
-	return Vector3(eye_x/near_w/-eye_z, eye_y/near_h/-eye_z,
-		(clip_far+clip_near)/z_range+2*clip_far*clip_near/(eye_z*z_range));
-}
-
-Vector4 Camera::unproject(const Vector4 &p) const
-{
-	float near_h = tan(fov/2)*clip_near;
-	float near_w = near_h*aspect;
-	float z_range = clip_far-clip_near;
-
-	float z = (2*clip_far*clip_near)/(p.z*z_range-(clip_far+clip_near))-matrix[14]*p.w;
-	float x = p.x*-z*near_w-matrix[12]*p.w;
-	float y = p.y*-z*near_h-matrix[13]*p.w;
-
-	return Vector4(matrix[0]*x+matrix[1]*y+matrix[2]*z,
-		matrix[4]*x+matrix[5]*y+matrix[6]*z,
-		matrix[8]*x+matrix[9]*y+matrix[10]*z,
-		p.w);
-}
-
-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);
-}
-
-void Camera::compute_matrix()
-{
-	float x = look_dir.y*up_dir.z-look_dir.z*up_dir.y;
-	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);
-
-	matrix[0] = x/len;
-	matrix[4] = y/len;
-	matrix[8] = z/len;
-
-	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;
-
-	matrix[2] = -look_dir.x;
-	matrix[6] = -look_dir.y;
-	matrix[10] = -look_dir.z;
-
-	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];
-}
-
-} // namespace GL
-} // namespace Msp