82 lines
2.2 KiB
C
82 lines
2.2 KiB
C
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// rvVertex.h - Describes some commonly used vertices (alternatives to the idDrawVert)
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// Date: 1/10/05
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// Created by: Dwight Luetscher - Raven Software
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//
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#ifndef __RV_VERTEX_H__
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#define __RV_VERTEX_H__
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//
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// rvBlend4DrawVert
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//
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// a vertex that is used to communicate data to drawing vertices stored in vertex buffers
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//
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class rvBlend4DrawVert {
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public:
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idVec3 xyz;
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int blendIndex[4];
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float blendWeight[4]; // NOTE: the vertex stored in the actual buffer that is actually used for drawing may leave out the last weight (implied 1 - sum of other weights)
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idVec3 normal;
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idVec3 tangent;
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idVec3 binormal;
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byte color[4]; // diffuse color, [0] red, [1] green, [2] blue, [3] alpha
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idVec2 st;
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};
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//
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// rvSilTraceVertT
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//
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// a transformed vert that typically resides in system-memory and is used for operations
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// like silhouette determination and trace testing
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//
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class rvSilTraceVertT {
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public:
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idVec4 xyzw;
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float operator[]( const int index ) const;
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float & operator[]( const int index );
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void Clear( void );
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void Lerp( const rvSilTraceVertT &a, const rvSilTraceVertT &b, const float f );
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void LerpAll( const rvSilTraceVertT &a, const rvSilTraceVertT &b, const float f );
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};
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#define SILTRACEVERT_SIZE_SHIFT 4
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#define SILTRACEVERT_SIZE (1 << SILTRACEVERT_SIZE_SHIFT)
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#define SILTRACEVERT_XYZW_OFFSET 0
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assert_sizeof( rvSilTraceVertT, SILTRACEVERT_SIZE );
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assert_sizeof( rvSilTraceVertT, (1<<SILTRACEVERT_SIZE_SHIFT) );
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assert_offsetof( rvSilTraceVertT, xyzw, SILTRACEVERT_XYZW_OFFSET );
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ID_INLINE float rvSilTraceVertT::operator[]( const int index ) const
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{
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assert( index >= 0 && index < 4 );
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return ((float *)(&xyzw))[index];
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}
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ID_INLINE float &rvSilTraceVertT::operator[]( const int index )
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{
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assert( index >= 0 && index < 4 );
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return ((float *)(&xyzw))[index];
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}
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ID_INLINE void rvSilTraceVertT::Clear( void )
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{
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xyzw.Zero();
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}
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ID_INLINE void rvSilTraceVertT::Lerp( const rvSilTraceVertT &a, const rvSilTraceVertT &b, const float f )
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{
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xyzw = a.xyzw + f * ( b.xyzw - a.xyzw );
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}
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ID_INLINE void rvSilTraceVertT::LerpAll( const rvSilTraceVertT &a, const rvSilTraceVertT &b, const float f )
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{
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xyzw = a.xyzw + f * ( b.xyzw - a.xyzw );
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}
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#endif // #ifndef __RV_VERTEX_H__
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