Revision 504,
914 bytes
checked in by bittner, 19 years ago
(diff) |
added frustum class for frustum culling support for HW based rendering
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1 | #ifndef __FRUSTUM_H
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2 | #define __FRUSTUM_H
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3 |
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4 | #include <vector>
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5 | using namespace std;
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6 |
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7 | class KdNode;
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8 | class Intersectable;
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9 | #include "AxisAlignedBox3.h"
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10 |
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11 | class Frustum {
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12 |
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13 | public:
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14 | enum {STORE_KD_NODES=1, STORE_OBJECTS=2};
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15 | int mFlags;
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16 |
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17 | // list of nodes intersected by the frustum
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18 | vector<KdNode *> mKdNodes;
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19 | // lits of objects intersected by the frum
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20 | vector<Intersectable *> mObjects;
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21 |
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22 |
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23 | // spatial box
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24 | AxisAlignedBox3 mBox;
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25 | // directional box (it is actually a 2D box - only x and y ranges are valid)
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26 | // directional parametrization according to VssRay::GetDirParametrization
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27 | AxisAlignedBox3 mDirBox;
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28 |
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29 | vector<Plane3> mPlanes;
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30 |
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31 | Frustum():mFlags(STORE_KD_NODES+STORE_OBJECTS)
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32 | {
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33 | }
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34 |
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35 | void Construct(const AxisAlignedBox3 &box,
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36 | const AxisAlignedBox3 &dBox);
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37 |
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38 |
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39 | int
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40 | ComputeIntersection(const AxisAlignedBox3 &box);
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41 |
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42 |
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43 | };
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44 |
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45 |
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46 | #endif
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