GT_MikkT.h

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/** \file mikktspace/mikktspace.h
 *  \ingroup mikktspace
 */
/**
 *  Copyright (C) 2011 by Morten S. Mikkelsen
 *
 *  This software is provided 'as-is', without any express or implied
 *  warranty.  In no event will the authors be held liable for any damages
 *  arising from the use of this software.
 *
 *  Permission is granted to anyone to use this software for any purpose,
 *  including commercial applications, and to alter it and redistribute it
 *  freely, subject to the following restrictions:
 *
 *  1. The origin of this software must not be misrepresented; you must not
 *     claim that you wrote the original software. If you use this software
 *     in a product, an acknowledgment in the product documentation would be
 *     appreciated but is not required.
 *  2. Altered source versions must be plainly marked as such, and must not be
 *     misrepresented as being the original software.
 *  3. This notice may not be removed or altered from any source distribution.
 */

#ifndef __GT_MIKKTSPACE_H__
#define __GT_MIKKTSPACE_H__

#include "GT_API.h"
#include "GT_Handles.h"

class UT_StringRef;

class GT_API GT_MikkT
{
public:
    //! Compute MikkT tangents
    /// The result of the computation will be written out to per-vertex
    /// attributes: tangents, bitangents, and signs.  Not all output handles
    /// need to be valid (null handles will be ignored).
    static bool computeTangentsBasic(
            const GT_PrimitiveHandle &prim,
            const UT_StringRef &uvName,
            const UT_StringRef &pName,
            const UT_StringRef &nName,
            const int segment,
            GT_DataArrayHandle *tangents,
            GT_DataArrayHandle *bitangents,
            GT_DataArrayHandle *signs);
};

#endif