38 lines
964 B
C
38 lines
964 B
C
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//========= Copyright <20> 1996-2005, Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $Workfile: $
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// $Date: $
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// $NoKeywords: $
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//=============================================================================//
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#ifndef BUMPVECTS_H
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#define BUMPVECTS_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include "mathlib/mathlib.h"
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#define OO_SQRT_2 0.70710676908493042f
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#define OO_SQRT_3 0.57735025882720947f
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#define OO_SQRT_6 0.40824821591377258f
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// sqrt( 2 / 3 )
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#define OO_SQRT_2_OVER_3 0.81649661064147949f
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#define NUM_BUMP_VECTS 3
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const TableVector g_localBumpBasis[NUM_BUMP_VECTS] =
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{
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{ OO_SQRT_2_OVER_3, 0.0f, OO_SQRT_3 },
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{ -OO_SQRT_6, OO_SQRT_2, OO_SQRT_3 },
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{ -OO_SQRT_6, -OO_SQRT_2, OO_SQRT_3 }
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};
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void GetBumpNormals( const Vector& sVect, const Vector& tVect, const Vector& flatNormal,
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const Vector& phongNormal, Vector bumpNormals[NUM_BUMP_VECTS] );
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#endif // BUMPVECTS_H
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