mirror of
https://port.numenaute.org/aleajactaest/khanat-code-old.git
synced 2024-11-30 07:35:59 +00:00
99 lines
3.6 KiB
C++
99 lines
3.6 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
|
|
// Copyright (C) 2010 Winch Gate Property Limited
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as
|
|
// published by the Free Software Foundation, either version 3 of the
|
|
// License, or (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
#ifndef NL_FLARE_MODEL_H
|
|
#define NL_FLARE_MODEL_H
|
|
|
|
#include "nel/misc/types_nl.h"
|
|
#include "nel/3d/transform_shape.h"
|
|
#include "nel/3d/vertex_buffer.h"
|
|
|
|
|
|
namespace NL3D {
|
|
|
|
struct IOcclusionQuery;
|
|
class CMesh;
|
|
|
|
/**
|
|
* TODO Class description
|
|
* \author Nicolas Vizerie
|
|
* \author Nevrax France
|
|
* \date 2001
|
|
*/
|
|
class CFlareModel : public CTransformShape
|
|
{
|
|
public:
|
|
enum { MaxNumContext = 4 };
|
|
enum { OcclusionTestFrameDelay = 2 }; // number of frame to wait before occlusion result is collected
|
|
/// Constructor
|
|
CFlareModel();
|
|
// dtor
|
|
~CFlareModel();
|
|
// register this model
|
|
static void registerBasic();
|
|
static CTransform *creator() { return new CFlareModel; }
|
|
/// \name CTransform traverse specialisation
|
|
// @{
|
|
virtual void traverseRender();
|
|
// @}
|
|
// From CTransform
|
|
virtual bool isFlare() const { return true; }
|
|
// Debugging aid : if an occlusion test mesh is used, display it using the current material
|
|
void renderOcclusionTestMesh(IDriver &drv);
|
|
private:
|
|
friend class CFlareShape;
|
|
float _Intensity[MaxNumContext];
|
|
CScene *_Scene;
|
|
IOcclusionQuery *_OcclusionQuery[MaxNumContext][OcclusionTestFrameDelay]; // delay real test by a whole frame to avoid any stall
|
|
IOcclusionQuery *_DrawQuery[MaxNumContext][OcclusionTestFrameDelay]; // querries to retrieve the surface that would have been drawned if there were no occlusion
|
|
NLMISC::CRefPtr<IDriver> _LastDrv; // last driver used for render
|
|
uint64 _LastRenderIntervalBegin[MaxNumContext]; // Interval of frames during which this flare was traversed for render
|
|
uint64 _LastRenderIntervalEnd[MaxNumContext];
|
|
uint64 _NumFrameForOcclusionQuery[MaxNumContext]; // number of frames that were necessary to get the occlusion query result
|
|
static CMaterial _OcclusionQueryMaterial;
|
|
static CMaterial _DrawQueryMaterial;
|
|
static bool _OcclusionQuerySettuped;
|
|
static CVertexBuffer _OcclusionQueryVB;
|
|
private:
|
|
void resetOcclusionQuerries();
|
|
// Issue an occlusion query with the given mesh to get the visibility ratio
|
|
void occlusionTest(CMesh &mesh, IDriver &drv);
|
|
public:
|
|
CFlareModel *Next; // linked list of flare model to test at each frame
|
|
public:
|
|
static void initStatics();
|
|
static void updateOcclusionQueryBegin(IDriver *drv);
|
|
static void updateOcclusionQueryEnd(IDriver *drv);
|
|
/** Update state of occlusion query at the end of the frame. For private use by the CScene class
|
|
* updateOcclusionQueryBegin() should have been called
|
|
*/
|
|
void updateOcclusionQuery(IDriver *drv);
|
|
/** Render all primitives of a mesh using the current material / metrix etc ...
|
|
* NB : this does NOT activate the vertex buffer of the mesh
|
|
* it must be activated prior to the call
|
|
*/
|
|
void renderOcclusionMeshPrimitives(CMesh &mesh, IDriver &drv);
|
|
// setup matrix of the occlusion test mesh in the driver
|
|
void setupOcclusionMeshMatrix(IDriver &drv, CScene &scene) const;
|
|
};
|
|
|
|
|
|
} // NL3D
|
|
|
|
|
|
#endif // NL_FLARE_MODEL_H
|
|
|
|
/* End of flare_model.h */
|