X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fcamera.cpp;h=b3cedbc62ad628813b5eee552302a2151ea586c1;hp=ae35f632438df2d9a7a8a416f838deabde6b8320;hb=HEAD;hpb=9ea7e740503b09298ae814b1bf521312d1744db2

diff --git a/source/camera.cpp b/source/camera.cpp
deleted file mode 100644
index ae35f632..00000000
--- a/source/camera.cpp
+++ /dev/null
@@ -1,145 +0,0 @@
-#include <cmath>
-#include "camera.h"
-#include "matrix.h"
-
-namespace Msp {
-namespace GL {
-
-Camera::Camera():
-	fov(Geometry::Angle<float>::from_turns(0.125)),
-	height(0),
-	aspect(4.0/3.0),
-	clip_near(0.1),
-	clip_far(10),
-	frustum_x(0),
-	frustum_y(0),
-	position(0, 0, 0),
-	look_dir(0, 0, -1),
-	up_dir(0, 1, 0)
-{
-	update_projection_matrix();
-	update_object_matrix();
-}
-
-void Camera::set_field_of_view(const Geometry::Angle<float> &f)
-{
-	fov = f;
-	update_projection_matrix();
-}
-
-void Camera::set_orthographic(float w, float h)
-{
-	fov = Geometry::Angle<float>::zero();
-	height = h;
-	if(w)
-		aspect = w/h;
-	update_projection_matrix();
-}
-
-void Camera::set_aspect(float a)
-{
-	aspect = a;
-	update_projection_matrix();
-}
-
-void Camera::set_depth_clip(float n, float f)
-{
-	clip_near = n;
-	clip_far = f;
-	update_projection_matrix();
-}
-
-void Camera::set_frustum_axis(float x, float y)
-{
-	frustum_x = x;
-	frustum_y = y;
-	update_projection_matrix();
-}
-
-void Camera::set_frustum_rotation(const Geometry::Angle<float> &r)
-{
-	rotate = r;
-	update_projection_matrix();
-}
-
-void Camera::set_position(const Vector3 &p)
-{
-	position = p;
-	update_object_matrix();
-}
-
-void Camera::set_up_direction(const Vector3 &u)
-{
-	up_dir = normalize(u);
-	update_object_matrix();
-}
-
-void Camera::set_look_direction(const Vector3 &l)
-{
-	look_dir = normalize(l);
-	update_object_matrix();
-}
-
-void Camera::look_at(const Vector3 &p)
-{
-	set_look_direction(p-position);
-}
-
-Vector3 Camera::project(const Vector4 &p) const
-{
-	Vector4 r = proj_matrix*(view_matrix*p);
-	return r.slice<3>(0)/r.w;
-}
-
-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
-{
-	Vector4 r = invert(proj_matrix)*Vector4(p.x, p.y, p.z, 1.0f);
-	r = object_matrix*Vector4(r.x/r.w, r.y/r.w, r.z/r.w, p.w);
-	return r;
-}
-
-Vector3 Camera::unproject(const Vector3 &p) const
-{
-	return unproject(Vector4(p.x, p.y, p.z, 1.0f)).slice<3>(0);
-}
-
-void Camera::apply() const
-{
-	MatrixStack::projection() = proj_matrix;
-	MatrixStack::modelview() = view_matrix;
-}
-
-void Camera::update_projection_matrix()
-{
-	float frustum_h = (fov!=Geometry::Angle<float>::zero() ? tan(fov/2.0f)*clip_near : height/2);
-	float frustum_w = frustum_h*aspect;
-	float left = frustum_w*(frustum_x-1.0f);
-	float right = frustum_w*(frustum_x+1.0f);
-	float bottom = frustum_h*(frustum_y-1.0f);
-	float top = frustum_h*(frustum_y+1.0f);
-	if(fov>Geometry::Angle<float>::zero())
-		proj_matrix = Matrix::frustum(left, right, bottom, top, clip_near, clip_far);
-	else
-		proj_matrix = Matrix::ortho(left, right, bottom, top, clip_near, clip_far);
-	proj_matrix = Matrix::rotation(rotate, Vector3(0, 0, 1))*proj_matrix;
-}
-
-void Camera::update_object_matrix()
-{
-	Vector3 right_dir = normalize(cross(look_dir, up_dir));
-	Vector4 columns[4];
-	columns[0] = compose(right_dir, 0.0f);
-	columns[1] = compose(cross(right_dir, look_dir), 0.0f);
-	columns[2] = compose(-look_dir, 0.0f);
-	columns[3] = compose(position, 1.0f);
-	object_matrix = Matrix::from_columns(columns);
-	view_matrix = invert(object_matrix);
-}
-
-} // namespace GL
-} // namespace Msp