X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Frender%2Fscene.cpp;fp=source%2Frender%2Fscene.cpp;h=a9cf8f96b326f76d388fed95187fbacd4dcdfa25;hp=0f7737227e8da37c4ba69e0260d99f4e893b87c0;hb=4f2f558123db15393607d8b21b949d7798561dec;hpb=dd503e748c430d26b6adda57b59f04177e4105fa diff --git a/source/render/scene.cpp b/source/render/scene.cpp index 0f773722..a9cf8f96 100644 --- a/source/render/scene.cpp +++ b/source/render/scene.cpp @@ -15,64 +15,6 @@ using namespace std; namespace Msp { namespace GL { -bool Scene::setup_frustum(const Renderer &renderer) const -{ - const Camera *camera = renderer.get_camera(); - if(!camera) - return false; - - culling_matrix = camera->get_view_matrix()*renderer.get_matrix(); - - if(camera->is_orthographic()) - { - float h = camera->get_orthographic_height(); - frustum_edges[0] = Vector4(0, 1, 0, -h); - frustum_edges[1] = Vector4(0, -1, 0, -h); - - float w = camera->get_orthographic_width(); - frustum_edges[2] = Vector4(1, 0, 0, -w); - frustum_edges[3] = Vector4(-1, 0, 0, -w); - } - else - { - float y = tan(camera->get_field_of_view()/2.0f); - float s = sqrt(y*y+1); - frustum_edges[0] = Vector4(0, 1/s, y/s, 0); - frustum_edges[1] = Vector4(0, -1/s, y/s, 0); - - float x = y*camera->get_aspect_ratio(); - s = sqrt(x*x+1); - frustum_edges[2] = Vector4(1/s, 0, x/s, 0); - frustum_edges[3] = Vector4(-1/s, 0, x/s, 0); - } - - frustum_edges[4] = Vector4(0, 0, -1, -camera->get_far_clip()); - frustum_edges[5] = Vector4(0, 0, 1, camera->get_near_clip()); - - return true; -} - -bool Scene::frustum_cull(const Renderable &renderable) const -{ - const Matrix *matrix = renderable.get_matrix(); - const Geometry::BoundingSphere *bsphere = renderable.get_bounding_sphere(); - if(!matrix || !bsphere) - return false; - - Vector4 center = culling_matrix*(*matrix*compose(bsphere->get_center(), 1.0f)); - Vector3 x_axis = (matrix->column(0)*bsphere->get_radius()).slice<3>(0); - float radius_sq = inner_product(x_axis, x_axis); - - for(unsigned i=0; i<6; ++i) - { - float distance = inner_product(center, frustum_edges[i]); - if(distance>0 && distance*distance>radius_sq) - return true; - } - - return false; -} - Scene::GenericLoader::TypeRegistry &Scene::get_scene_registry() { static Scene::GenericLoader::TypeRegistry registry;