X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fzsortedscene.cpp;fp=source%2Fzsortedscene.cpp;h=da406b7ef0074f19a0e125c328d93595ed43d03d;hp=0000000000000000000000000000000000000000;hb=c87860db3b23a98eda1adfe59acddffdb6eb8420;hpb=78328c5f6e4dcbe883a3f5e4fe0974ab490be3f7

diff --git a/source/zsortedscene.cpp b/source/zsortedscene.cpp
new file mode 100644
index 00000000..da406b7e
--- /dev/null
+++ b/source/zsortedscene.cpp
@@ -0,0 +1,67 @@
+#include "camera.h"
+#include "renderer.h"
+#include "zsortedscene.h"
+
+using namespace std;
+
+namespace Msp {
+namespace GL {
+
+ZSortedScene::ZSortedScene():
+	order(BACK_TO_FRONT),
+	reference(FURTHEST)
+{ }
+
+void ZSortedScene::set_order(SortOrder o)
+{
+	order = o;
+}
+
+void ZSortedScene::set_reference(DepthReference r)
+{
+	reference = r;
+}
+
+void ZSortedScene::render(Renderer &renderer, const Tag &tag) const
+{
+	const Camera *camera = renderer.get_camera();
+	if(!camera)
+		return SimpleScene::render(renderer, tag);
+
+	const Matrix &view_matrix = camera->get_matrix();
+
+	std::vector<DepthRenderable> sorted_renderables;
+	sorted_renderables.reserve(renderables.size());
+
+	float radius_factor = 1.0f-reference;
+	float sign = order*2.0f-1.0f;
+
+	setup_cullers(renderer);
+	for(RenderableSet::const_iterator i=renderables.begin(); i!=renderables.end(); ++i)
+		if(!cull(renderer, **i))
+		{
+			float z = 0;
+			if(const Matrix *model_matrix = (*i)->get_matrix())
+			{
+				if(const Geometry::BoundingSphere<float, 3> *bsphere = (*i)->get_bounding_sphere())
+					z = (view_matrix**model_matrix*Vector4(bsphere->get_center(), 1.0f)).z+bsphere->get_radius()*radius_factor;
+				else
+					z = (view_matrix**model_matrix*Vector4(0.0f, 0.0f, 0.0f, 1.0f)).z;
+			}
+			sorted_renderables.push_back(DepthRenderable(z*sign, *i));
+		}
+
+	sort(sorted_renderables.begin(), sorted_renderables.end());
+
+	for(vector<DepthRenderable>::const_iterator i=sorted_renderables.begin(); i!=sorted_renderables.end(); ++i)
+		i->renderable->render(renderer, tag);
+}
+
+
+ZSortedScene::DepthRenderable::DepthRenderable(float d, const Renderable *r):
+	depth(d),
+	renderable(r)
+{ }
+
+} // namespace GL
+} // namespace Msp