CWE-ou-minkata/Sources/Tools/MaxConvert/hsVertexShader.h

/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

You can contact Cyan Worlds, Inc. by email legal@cyan.com
 or by snail mail at:
      Cyan Worlds, Inc.
      14617 N Newport Hwy
      Mead, WA   99021

*==LICENSE==*/
#ifndef __HSVERTEXSHADER_H
#define __HSVERTEXSHADER_H

class hsConverterUtils;
class hsBitVector;

class plMaxLightContext;
class plGeometrySpan;
struct hsColorRGBA;
class plLightMapGen;

class hsVertexShader 
{
private:
    hsVertexShader();
public:
    virtual ~hsVertexShader();

    static hsVertexShader& Instance();

    void ShadeNode(INode* node, hsMatrix44& l2w, hsMatrix44& w2l, hsTArray<plGeometrySpan *> &spans);

    void Open();
    void Close();

private:

    /// Temporary vertex class
    class plTmpVertex3
    {
        public:
            hsPoint3    fLocalPos;
            hsVector3   fNormal;
    };

    hsBool ILightIncludesNode(LightObject* light, INode* node);

    void    INativeShadeVtx(hsColorRGBA& shade, plMaxLightContext& ctx, const plTmpVertex3& vtx, hsBool translucent);
    void    INativeShadowVtx(hsColorRGBA& shade, plMaxLightContext& ctx, const plTmpVertex3& vtx, hsBool translucent);

    hsBool IsTranslucent( hsGMaterial *material );

    void IShadeSpan( plGeometrySpan *span, INode* node );
    void IShadeVertices( plGeometrySpan *span, hsBitVector *dirtyVector, INode* node, hsBool translucent );

private:
    Interface           *fInterface;
    hsConverterUtils    &fConverterUtils;

    plLightMapGen*      fLightMapGen;

    hsMatrix44          fLocalToWorld, fNormalToWorld;      // fN2W is inv-transpose of fL2W

    int                 fShaded;    // just record-keeping

    hsColorRGBA         *fShadeColorTable;
    hsColorRGBA         *fIllumColorTable;
};

#endif