X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fcamera.cpp;h=b3cedbc62ad628813b5eee552302a2151ea586c1;hp=a3ab730d98ddd06ed167a8a0bd739b0e56554890;hb=HEAD;hpb=60ca0094db80ea88ad546c98866f73a8d152e02b

diff --git a/source/camera.cpp b/source/camera.cpp
deleted file mode 100644
index a3ab730d..00000000
--- a/source/camera.cpp
+++ /dev/null
@@ -1,128 +0,0 @@
-#include <cmath>
-#include "camera.h"
-#include "matrix.h"
-
-namespace Msp {
-namespace GL {
-
-Camera::Camera():
-	fov(Geometry::Angle<float>::from_turns(0.125)),
-	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)
-{ }
-
-void Camera::set_field_of_view(const Geometry::Angle<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)
-{
-	up_dir = normalize(u);
-
-	compute_matrix();
-}
-
-void Camera::set_look_direction(const Vector3 &l)
-{
-	look_dir = normalize(l);
-
-	compute_matrix();
-}
-
-void Camera::look_at(const Vector3 &p)
-{
-	set_look_direction(p-position);
-}
-
-Vector3 Camera::project(const Vector4 &p) const
-{
-	float frustum_h = tan(fov/2.0f);
-	float frustum_w = frustum_h*aspect;
-	float z_range = clip_far-clip_near;
-
-	Vector4 eye = matrix*p;
-
-	return Vector3(eye.x/frustum_w/-eye.z, eye.y/frustum_h/-eye.z,
-		(clip_far+clip_near)/z_range+2*clip_far*clip_near/(eye.z*z_range));
-}
-
-Vector3 Camera::project(const Vector3 &p) const
-{
-	return project(Vector4(p.x, p.y, p.z, 1.0));
-}
-
-Vector4 Camera::unproject(const Vector4 &p) const
-{
-	float frustum_h = tan(fov/2.0f);
-	float frustum_w = frustum_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*frustum_w-matrix[12]*p.w;
-	float y = p.y*-z*frustum_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
-{
-	MatrixStack::projection() = Matrix::perspective(fov, aspect, clip_near, clip_far);
-	MatrixStack::modelview() = matrix;
-}
-
-void Camera::compute_matrix()
-{
-	Vector3 right_dir = normalize(cross(look_dir, up_dir));
-	double mdata[16];
-
-	mdata[0] = right_dir.x;
-	mdata[4] = right_dir.y;
-	mdata[8] = right_dir.z;
-
-	mdata[1] = right_dir.y*look_dir.z-right_dir.z*look_dir.y;
-	mdata[5] = right_dir.z*look_dir.x-right_dir.x*look_dir.z;
-	mdata[9] = right_dir.x*look_dir.y-right_dir.y*look_dir.x;
-
-	mdata[2] = -look_dir.x;
-	mdata[6] = -look_dir.y;
-	mdata[10] = -look_dir.z;
-
-	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];
-
-	mdata[3] = 0;
-	mdata[7] = 0;
-	mdata[11] = 0;
-	mdata[15] = 1;
-
-	matrix = mdata;
-}
-
-} // namespace GL
-} // namespace Msp