GU/GU_Warp.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 * Produced by:
 *
 *      Cristin Barghiel
 *      Side Effects Software Inc.
 *      20 Maud St.
 *      Toronto, Ontario,  M5V 2M5
 *      Canada
 *      416-366-4607
 *
 * NAME:        GU_Warp.C (C++)
 *
 * COMMENTS:
 *      This is the filter used to warp faces or surfaces.
 */

#ifndef __GU_Warp_h__
#define __GU_Warp_h__

#include "GU_API.h"
#include <UT/UT_Matrix4.h>
#include <GEO/GEO_Primitive.h>

class GB_PrimitiveGroup;

    enum GU_WARP_OP {
        GU_MATRIX_WARP          = 0,
        GU_NORMAL_WARP          = 1,
        GU_POSITION_WARP        = 2,
        GU_SELFUV_WARP          = 3
    };

class GU_API GU_WarpParms
{
public:
    GU_WarpParms(); 
   ~GU_WarpParms() {}


    GU_WARP_OP           op;

    int                  warpU;
    float                u;      // [0,1]
    int                  useBiasU;
    float                biasU;
    float                sharpnessU;

    int                  warpV;
    float                v;      // [0,1]
    int                  useBiasV;
    float                biasV;
    float                sharpnessV;

    // xform, normalDist, pos, and selfu/v are exclusive
    UT_Matrix4           xform;
    float                normalDist;
    float                selfu, selfv; // must be unit coords ([0,1])
    UT_Vector4           pos;

    const GB_PrimitiveGroup     *prims;
};

#endif

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