Treat an empty bounding sphere as absent for frustum culling

Dynamically created objects don't have their bounding sphere filled
in, so they got culled when the center of the object was outside the
frustum.

diff --git a/source/render/camera.cpp b/source/render/camera.cpp
index 67fa4f517920561b01716715f676b507028638a8..d0a5963cd24fc0d36e5a1f4e20aa17c10cdc4740 100644 (file)
--- a/source/render/camera.cpp
+++ b/source/render/camera.cpp
@@ -129,7 +129,7 @@ bool Camera::is_in_frustum(const Renderable &renderable) const
 {
        const Matrix *rmatrix = renderable.get_matrix();
        const Geometry::BoundingSphere<float, 3> *bsphere = renderable.get_bounding_sphere();
-       if(!rmatrix || !bsphere)
+       if(!rmatrix || !bsphere || bsphere->is_empty())
                return true;
 
        Vector4 center = *rmatrix*compose(bsphere->get_center(), 1.0f);