X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fcamera.cpp;h=b3cedbc62ad628813b5eee552302a2151ea586c1;hp=d119e1eff1b67245b9fca74c4058b5d5077af8e3;hb=77ad5a1a89aa43d9a3c8c58abff1ae184510cec6;hpb=af7ffc9c72e30ae377476f76a51a6676dd6e89aa

diff --git a/source/camera.cpp b/source/camera.cpp
index d119e1ef..b3cedbc6 100644
--- a/source/camera.cpp
+++ b/source/camera.cpp
@@ -36,7 +36,7 @@ void Camera::set_orthographic(float w, float h)
 	update_projection_matrix();
 }
 
-void Camera::set_aspect(float a)
+void Camera::set_aspect_ratio(float a)
 {
 	aspect = a;
 	update_projection_matrix();
@@ -56,15 +56,15 @@ void Camera::set_frustum_axis(float x, float y)
 	update_projection_matrix();
 }
 
-void Camera::set_position(const Vector3 &p)
+void Camera::set_frustum_rotation(const Geometry::Angle<float> &r)
 {
-	position = p;
-	update_object_matrix();
+	rotate = r;
+	update_projection_matrix();
 }
 
-void Camera::set_up_direction(const Vector3 &u)
+void Camera::set_position(const Vector3 &p)
 {
-	up_dir = normalize(u);
+	position = p;
 	update_object_matrix();
 }
 
@@ -79,6 +79,20 @@ void Camera::look_at(const Vector3 &p)
 	set_look_direction(p-position);
 }
 
+void Camera::set_up_direction(const Vector3 &u)
+{
+	up_dir = normalize(u);
+	update_object_matrix();
+}
+
+void Camera::set_object_matrix(const Matrix &m)
+{
+	position = m.column(3).slice<3>(0);
+	look_dir = normalize(-m.column(2).slice<3>(0));
+	up_dir = normalize(m.column(1).slice<3>(0));
+	update_object_matrix();
+}
+
 Vector3 Camera::project(const Vector4 &p) const
 {
 	Vector4 r = proj_matrix*(view_matrix*p);
@@ -93,10 +107,15 @@ Vector3 Camera::project(const Vector3 &p) const
 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.y, r.z, p.w);
+	r = 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;
@@ -115,6 +134,7 @@ void Camera::update_projection_matrix()
 		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()
@@ -125,8 +145,62 @@ void Camera::update_object_matrix()
 	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);
+	matrix = Matrix::from_columns(columns);
+	view_matrix = invert(matrix);
+}
+
+
+Camera::Loader::Loader(Camera &c):
+	DataFile::ObjectLoader<Camera>(c)
+{
+	add("aspect_ratio", &Loader::aspect_ratio);
+	add("depth_clip", &Loader::depth_clip);
+	add("field_of_view", &Loader::field_of_view);
+	add("look_at", &Loader::look_at);
+	add("look_direction", &Loader::look_direction);
+	add("orthographic", &Loader::orthographic);
+	add("position", &Loader::position);
+	add("up_direction", &Loader::up_direction);
+}
+
+void Camera::Loader::aspect_ratio(float a)
+{
+	obj.set_aspect_ratio(a);
+}
+
+void Camera::Loader::depth_clip(float n, float f)
+{
+	obj.set_depth_clip(n, f);
+}
+
+void Camera::Loader::field_of_view(float a)
+{
+	obj.set_field_of_view(Geometry::Angle<float>::from_degrees(a));
+}
+
+void Camera::Loader::look_at(float x, float y, float z)
+{
+	obj.look_at(Vector3(x, y, z));
+}
+
+void Camera::Loader::look_direction(float x, float y, float z)
+{
+	obj.set_look_direction(Vector3(x, y, z));
+}
+
+void Camera::Loader::orthographic(float w, float h)
+{
+	obj.set_orthographic(w, h);
+}
+
+void Camera::Loader::position(float x, float y, float z)
+{
+	obj.set_position(Vector3(x, y, z));
+}
+
+void Camera::Loader::up_direction(float x, float y, float z)
+{
+	obj.set_up_direction(Vector3(x, y, z));
 }
 
 } // namespace GL