source: GTP/trunk/App/Demos/Vis/FriendlyCulling/src/SceneQuery.h @ 2808

Revision 2808, 842 bytes checked in by mattausch, 16 years ago (diff)
Line 
1#ifndef _SCENEQUERY_H__
2#define _SCENEQUERY_H__
3
4#include "common.h"
5#include "AxisAlignedBox3.h"
6
7
8namespace CHCDemoEngine
9{
10
11class RenderTraverser;
12
13/** A simple class that computes the first intersection of a horizontal ray with
14        the scene. Can be used to "drop" objects in the scene.
15*/
16class SceneQuery
17{
18public:
19
20        SceneQuery(const AxisAlignedBox3 &sceneBox, RenderTraverser *traverser);
21        ~SceneQuery() { DEL_ARRAY_PTR(mDepth); }
22
23        /** Calculates intersection of vertical ray at position pt.x, pt.y and
24            stores the intersection point if valid. returns true if the intersection
25                is valid.
26        */
27        bool CalcIntersection(Vector3 &pt);
28
29
30protected:
31
32        void Prepare(RenderTraverser *traverser);
33
34        ///////////
35
36        AxisAlignedBox3 mSceneBox;
37
38        //unsigned char *mDepth;
39        float *mDepth;
40};
41
42}
43
44#endif
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