43 lines
965 B
C++
43 lines
965 B
C++
/***
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*
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* Copyright (c) 1996-2002, Valve LLC. All rights reserved.
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*
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* This product contains software technology licensed from Id
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* Software, Inc. ("Id Technology"). Id Technology (c) 1996 Id Software, Inc.
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* All Rights Reserved.
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*
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* Use, distribution, and modification of this source code and/or resulting
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* object code is restricted to non-commercial enhancements to products from
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* Valve LLC. All other use, distribution, or modification is prohibited
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* without written permission from Valve LLC.
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*
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****/
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#pragma once
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enum FrustumSide
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{
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RIGHT = 0,
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LEFT = 1,
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BOTTOM = 2,
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TOP = 3,
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BACK = 4,
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FRONT = 5,
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};
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struct CFrustum
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{
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void CalculateFrustum();
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bool PointInsideFrustum(float x, float y, float z);
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bool SphereInsideFrustum(float x, float y, float z, float radius);
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bool PlaneInsideFrustum(float x, float y, float z, float size);
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private:
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void NormalizeFrustumPlane(float frustum[6][4], int side);
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public:
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float g_flFrustum[6][4];
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};
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