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basic support for height fields. They are producing temporary triangles, similar to the plane shape.

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This commit is contained in:
ejcoumans
2007-06-27 03:19:34 +00:00
parent bba61c834c
commit 3ca6d7385e
2 changed files with 262 additions and 32 deletions
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23
src/BulletCollision/CollisionShapes/btHeightfieldTerrainShape.h
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@@ -25,12 +25,31 @@ protected:
btVector3 m_localAabbMin;
btVector3 m_localAabbMax;
//todo: terrain data
///terrain data
int m_width;
int m_length;
btScalar m_maxHeight;
unsigned char* m_heightfieldData;
int m_upAxis;
btVector3 m_quantization;
btVector3 m_localScaling;
void quantizeWithClamp(short* out, const btVector3& point) const;
void getVertex(int x,int y,btVector3& vertex) const;
inline bool testQuantizedAabbAgainstQuantizedAabb(short int* aabbMin1,short int* aabbMax1,const short int* aabbMin2,const short int* aabbMax2) const
{
bool overlap = true;
overlap = (aabbMin1[0] > aabbMax2[0] || aabbMax1[0] < aabbMin2[0]) ? false : overlap;
overlap = (aabbMin1[2] > aabbMax2[2] || aabbMax1[2] < aabbMin2[2]) ? false : overlap;
overlap = (aabbMin1[1] > aabbMax2[1] || aabbMax1[1] < aabbMin2[1]) ? false : overlap;
return overlap;
}
public:
btHeightfieldTerrainShape();
btHeightfieldTerrainShape(int width,int height,unsigned char* heightfieldData, btScalar maxHeight,int upAxis);
virtual ~btHeightfieldTerrainShape();