AssemblyCelShadingFactory.java

/**
 * Copyright (c) 2003-2009, Xith3D Project Group all rights reserved.
 * 
 * Portions based on the Java3D interface, Copyright by Sun Microsystems.
 * Many thanks to the developers of Java3D and Sun Microsystems for their
 * innovation and design.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * 
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * 
 * Neither the name of the 'Xith3D Project Group' nor the names of its
 * contributors may be used to endorse or promote products derived from this
 * software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) A
 * RISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE
 */
package org.xith3d.effects.celshading;

import org.xith3d.loaders.shaders.impl.assembly.AssemblyShaderLoader;
import org.xith3d.scenegraph.Appearance;
import org.xith3d.scenegraph.AssemblyShaderProgram;
import org.xith3d.scenegraph.AssemblyShaderProgramContext;
import org.xith3d.scenegraph.AssemblyVertexShader;
import org.xith3d.scenegraph.Geometry;
import org.xith3d.scenegraph.Shape3D;

/**
 * Insert type comment here.
 * 
 * @author Marvin Froehlich (aka Qudus)
 */
public class AssemblyCelShadingFactory extends CelShadingFactory
{
    private static AssemblyShaderProgramContext shaderProgram = null;
    
    private static AssemblyShaderProgramContext getShaderProgram()
    {
        if ( shaderProgram == null )
        {
            try
            {
                AssemblyVertexShader vs = AssemblyShaderLoader.getInstance().loadVertexShader( AssemblyCelShadingFactory.class.getClassLoader().getResource( "resources/org/xith3d/shaders/celshading/shader.celshading.assemblyvert" ) );
                shaderProgram = new AssemblyShaderProgramContext( new AssemblyShaderProgram( vs, null ) );
            }
            catch ( RuntimeException e )
            {
                throw e;
            }
            catch ( Error e )
            {
                throw e;
            }
            catch ( Throwable t )
            {
                throw new Error( t );
            }
        }
        
        return ( shaderProgram );
    }
    
    /**
     * {@inheritDoc}
     */
    @Override
    protected Shape3D createMainShape( Geometry geometry )
    {
        Appearance app = getBaseAppearance();
        
        app.setShaderProgramContext( getShaderProgram() );
        
        return ( new Shape3D( geometry, app ) );
    }
}