Equalizer  1.2.1
sliceClipping.h
00001 
00002 /* Copyright (c) 2007       Maxim Makhinya
00003  *
00004  * Redistribution and use in source and binary forms, with or without
00005  * modification, are permitted provided that the following conditions are met:
00006  *
00007  * - Redistributions of source code must retain the above copyright notice, this
00008  *   list of conditions and the following disclaimer.
00009  * - Redistributions in binary form must reproduce the above copyright notice,
00010  *   this list of conditions and the following disclaimer in the documentation
00011  *   and/or other materials provided with the distribution.
00012  * - Neither the name of Eyescale Software GmbH nor the names of its
00013  *   contributors may be used to endorse or promote products derived from this
00014  *   software without specific prior written permission.
00015  *
00016  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00017  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00018  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00019  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
00020  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
00021  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
00022  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00023  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00024  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
00025  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00026  * POSSIBILITY OF SUCH DAMAGE.
00027  */
00028 
00029 #include <eq/eq.h>
00030 
00031 #ifndef EVOLVE_SLICECLIPPING_H
00032 #define EVOLVE_SLICECLIPPING_H
00033 
00034 namespace eVolve
00035 {
00036 
00037 
00038 struct SliceClipper
00039 {
00040     SliceClipper(){};
00041 
00042     static const int    nSequence[8][8];
00043     static const float  sequence[64];
00044     static const float  v1[24];
00045     static const float  v2[24];
00046 
00047     typedef eq::Vector3f float3;
00048 
00049     void updatePerFrameInfo
00050     (
00051         const eq::Matrix4d&   modelviewM,
00052         const eq::Matrix3d&   modelviewITM,
00053         const double            sliceDistance,
00054         const eq::Range&        range
00055     );
00056 
00057     eq::Vector3f getPosition
00058     (
00059         const int vertexNum,
00060         const int sliceNum
00061     ) const;
00062 
00063     float           shaderVertices[24];
00064     eq::Vector3f    viewVecf;
00065     eq::Vector4d    viewVec;
00066     int             frontIndex;
00067     double          sliceDistance;
00068     double          planeStart;
00069 };
00070 
00071 }
00072 
00073 #endif // EVOLVE_SLICECLIPPING_H
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