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OpenSpace/modules/globebrowsing/chunk/culling/frustumculler.h
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Alexander Bock 0d03177d43 Feature/globebrowsingcleanup (#230)
* Initial restructuring of the Globebrowsing branch

* Update Ghoul repository
Fix include guards

* More cleanup

* Split texttileprovider subclasses into separate files

* Move TileProviders into namespace

* Convert static class methods into free functions

* Splitting tile subclasses into their own files
Remove `using namespace` from header file

* Split TileDataSet subclass into separate file
Update SGCT reference

* Move shader preprocessing data into internal class

* More Globebrowsing cleanup

* More cleanup
Remove unused Convexhull class
2017-02-15 21:20:05 +01:00

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3.2 KiB
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/*****************************************************************************************
* *
* OpenSpace *
* *
* Copyright (c) 2014-2017 *
* *
* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
* software and associated documentation files (the "Software"), to deal in the Software *
* without restriction, including without limitation the rights to use, copy, modify, *
* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
* permit persons to whom the Software is furnished to do so, subject to the following *
* conditions: *
* *
* The above copyright notice and this permission notice shall be included in all copies *
* or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
****************************************************************************************/
#ifndef __OPENSPACE_MODULE_GLOBEBROWSING___FRUSTUMCULLER___H__
#define __OPENSPACE_MODULE_GLOBEBROWSING___FRUSTUMCULLER___H__
#include <modules/globebrowsing/chunk/culling/chunkculler.h>
#include <modules/globebrowsing/geometry/aabb.h>
namespace openspace {
namespace globebrowsing {
namespace culling {
/**
* Culls all chunks that are completely outside the view frustum.
*
* The frustum culling uses a 2D axis aligned bounding box for the Chunk in
* screen space. This is calculated from a bounding polyhedron bounding the
* Chunk. Hence the culling will not be 'perfect' but fast and good enough for
* culling chunks outside the frustum with some margin.
*/
class FrustumCuller : public ChunkCuller {
public:
/**
* \param viewFrustum is the view space in normalized device coordinates space.
* Hence it is an axis aligned bounding box and not a real frustum.
*/
FrustumCuller(AABB3 viewFrustum);
bool isCullable(const Chunk& chunk, const RenderData& renderData) override;
private:
const AABB3 _viewFrustum;
};
} // namespace culling
} // namespace globebrowsing
} // namespace openspace
#endif // __OPENSPACE_MODULE_GLOBEBROWSING___FRUSTUMCULLER___H__