1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
/*---------------------------------------------------------------------
Terrain Renderer using texture splatting and geomipmapping
Copyright (2006) Jelmer Cnossen
This code is released under GPL license (See LICENSE.html for info)
---------------------------------------------------------------------*/
#ifndef FRUSTUM_H
#define FRUSTUM_H
#include "Plane.h"
/*
The frustum clips the polygons against a certain convex space
*/
class Frustum
{
public:
void CalcCameraPlanes (Vector3 *base, Vector3 *right, Vector3* up, Vector3* front, float tanHalfFov, float aspect); // should at least have
void InversePlanes ();
enum VisType { Inside, Outside, Partial };
VisType IsBoxVisible (const Vector3& min, const Vector3& max); // 3D test
VisType IsPointVisible (const Vector3& pt);
std::vector<Plane> planes;
Vector3 base, pos[4], front, right, up;
void Draw ();
};
#endif
|
