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# iengine/viscull.h

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    00001 /*
    00002     Crystal Space 3D engine
    00003     Copyright (C) 2001 by Jorrit Tyberghein
    00004
    00005     This library is free software; you can redistribute it and/or
    00006     modify it under the terms of the GNU Library General Public
    00007     License as published by the Free Software Foundation; either
    00008     version 2 of the License, or (at your option) any later version.
    00009
    00010     This library is distributed in the hope that it will be useful,
    00011     but WITHOUT ANY WARRANTY; without even the implied warranty of
    00012     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00013     Library General Public License for more details.
    00014
    00015     You should have received a copy of the GNU Library General Public
    00016     License along with this library; if not, write to the Free
    00017     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
    00018 */
    00019
    00020 #ifndef __CS_IENGINE_VISCULL_H__
    00021 #define __CS_IENGINE_VISCULL_H__
    00022
    00030 #include "csutil/scf_interface.h"
    00031
    00032 struct iDocumentNode;
    00033 struct iFrustumView;
    00034 struct iMeshWrapper;
    00035 struct iMovable;
    00036 struct iObjectModel;
    00037 struct iRenderView;
    00038 struct iVisibilityObject;
    00039
    00040 class csBox3;
    00041 class csFlags;
    00042 class csPlane3;
    00043 class csSphere;
    00044 class csVector3;
    00045
    00049 struct iVisibilityObjectIterator : public virtual iBase
    00050 {
    00051   SCF_INTERFACE (iVisibilityObjectIterator, 2, 0, 0);
    00053   virtual bool HasNext () const = 0;
    00054
    00056   virtual iVisibilityObject* Next () = 0;
    00057
    00059   virtual void Reset () = 0;
    00060 };
    00061
    00062
    00070 struct iVisibilityCullerListener : public virtual iBase
    00071 {
    00072   SCF_INTERFACE(iVisibilityCullerListener, 2,0,0);
    00080   virtual void ObjectVisible (iVisibilityObject *visobject,
    00081     iMeshWrapper *mesh, uint32 frustum_mask) = 0;
    00082 };
    00083
    00101 struct iVisibilityCuller : public virtual iBase
    00102 {
    00103   SCF_INTERFACE (iVisibilityCuller, 2, 0, 0);
    00104
    00110   virtual void Setup (const char* name) = 0;
    00118   virtual void RegisterVisObject (iVisibilityObject* visobj) = 0;
    00120   virtual void UnregisterVisObject (iVisibilityObject* visobj) = 0;
    00127   virtual bool VisTest (iRenderView* irview,
    00128     iVisibilityCullerListener* viscallback) = 0;
    00135   virtual void PrecacheCulling () = 0;
    00136
    00141   virtual csPtr<iVisibilityObjectIterator> VisTest (const csBox3& box) = 0;
    00142
    00147   virtual csPtr<iVisibilityObjectIterator> VisTest (const csSphere& sphere) = 0;
    00152   virtual void VisTest (const csSphere& sphere,
    00153     iVisibilityCullerListener* viscallback) = 0;
    00154
    00160   virtual csPtr<iVisibilityObjectIterator> VisTest (csPlane3* plane,
    00161         int num_planes) = 0;
    00162
    00169   virtual void VisTest (csPlane3* plane, int num_planes,
    00170     iVisibilityCullerListener* viscallback) = 0;
    00171
    00178   virtual csPtr<iVisibilityObjectIterator> IntersectSegmentSloppy (
    00179     const csVector3& start, const csVector3& end) = 0;
    00180
    00186   virtual csPtr<iVisibilityObjectIterator> IntersectSegment (
    00187     const csVector3& start, const csVector3& end, bool accurate = false) = 0;
    00188
    00198   virtual bool IntersectSegment (const csVector3& start,
    00199     const csVector3& end, csVector3& isect, float* pr = 0,
    00200     iMeshWrapper** p_mesh = 0, int* poly_idx = 0,
    00201     bool accurate = true) = 0;
    00202
    00213   virtual void CastShadows (iFrustumView* fview) = 0;
    00214
    00219   virtual const char* ParseCullerParameters (iDocumentNode* node) = 0;
    00220 };
    00221
    00229 #define CS_CULLER_HINT_GOODOCCLUDER 4
    00230
    00235 #define CS_CULLER_HINT_BADOCCLUDER 8
    00236
    00252 struct iVisibilityObject : public virtual iBase
    00253 {
    00254   SCF_INTERFACE(iVisibilityObject, 2, 0, 0);
    00255
    00257   virtual iMovable* GetMovable () const = 0;
    00259   virtual iMeshWrapper* GetMeshWrapper () const = 0;
    00260
    00264   virtual iObjectModel* GetObjectModel () = 0;
    00265
    00272   virtual csFlags& GetCullerFlags () = 0;
    00273 };
    00274
    00277 #endif // __CS_IENGINE_VISCULL_H__
    00278