123 lines
3.6 KiB
C++
123 lines
3.6 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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//osgFX - Copyright (C) 2003 Marco Jez
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#ifndef OSGFX_CARTOON_
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#define OSGFX_CARTOON_
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#include <osgFX/Export>
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#include <osgFX/Effect>
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#include <osg/Material>
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#include <osg/LineWidth>
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namespace osgFX
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{
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/**
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This effect implements a technique called 'Cel-Shading' to produce a
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cartoon-style (non photorealistic) rendering. Two passes are required:
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the first one draws solid surfaces, the second one draws the outlines.
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A vertex program is used to setup texture coordinates for a sharp lighting
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texture on unit 0 which is generated on-the-fly.
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This effect requires the ARB_vertex_program extension.
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*/
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class OSGFX_EXPORT Cartoon: public Effect {
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public:
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Cartoon();
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Cartoon(const Cartoon& copy, const osg::CopyOp& copyop = osg::CopyOp::SHALLOW_COPY);
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// effect class information
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META_Effect(
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osgFX,
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Cartoon,
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"Cartoon",
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"This effect implements a technique called 'Cel-Shading' to produce a "
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"cartoon-style (non photorealistic) rendering. Two passes are required: "
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"the first one draws solid surfaces, the second one draws the outlines. "
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"A vertex program is used to setup texture coordinates for a sharp lighting "
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"texture on unit 0 which is generated on-the-fly.\n"
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"This effect requires the ARB_vertex_program extension "
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"or OpenGL Shading Language.",
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"Marco Jez; OGLSL port by Mike Weiblen");
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/** get the outline color */
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inline const osg::Vec4& getOutlineColor() const;
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/** set the outline color */
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inline void setOutlineColor(const osg::Vec4& color);
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/** get the outline line width */
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inline float getOutlineLineWidth() const;
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/** set the outline line width */
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inline void setOutlineLineWidth(float w);
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/** get the OpenGL light number */
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inline int getLightNumber() const;
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/** set the OpenGL light number that will be used in lighting computations */
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inline void setLightNumber(int n);
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protected:
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virtual ~Cartoon() {}
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Cartoon& operator=(const Cartoon&) { return *this; }
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bool define_techniques();
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private:
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osg::ref_ptr<osg::Material> _wf_mat;
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osg::ref_ptr<osg::LineWidth> _wf_lw;
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int _lightnum;
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};
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// INLINE METHODS
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inline const osg::Vec4& Cartoon::getOutlineColor() const
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{
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return _wf_mat->getEmission(osg::Material::FRONT_AND_BACK);
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}
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inline void Cartoon::setOutlineColor(const osg::Vec4& color)
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{
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_wf_mat->setEmission(osg::Material::FRONT_AND_BACK, color);
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}
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inline float Cartoon::getOutlineLineWidth() const
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{
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return _wf_lw->getWidth();
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}
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inline void Cartoon::setOutlineLineWidth(float w)
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{
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_wf_lw->setWidth(w);
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}
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inline int Cartoon::getLightNumber() const
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{
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return _lightnum;
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}
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inline void Cartoon::setLightNumber(int n)
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{
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_lightnum = n;
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dirtyTechniques();
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}
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}
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#endif
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