/**
* 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.render.lwjgl;
import org.openmali.vecmath2.Colorf;
import org.jagatoo.logging.ProfileTimer;
import org.lwjgl.opengl.GL11;
import org.xith3d.render.CanvasPeer;
import org.xith3d.render.OpenGLCapabilities;
import org.xith3d.render.OpenGLStatesCache;
import org.xith3d.render.RenderOptions;
import org.xith3d.render.RenderPeer;
import org.xith3d.render.RenderPeer.RenderMode;
import org.xith3d.render.preprocessing.RenderAtom;
import org.xith3d.render.states.StateUnit;
import org.xith3d.render.states.units.ColoringStateUnit;
import org.xith3d.render.states.units.StateUnitPeer;
import org.xith3d.scenegraph.ColoringAttributes;
import org.xith3d.scenegraph.TransparencyAttributes;
import org.xith3d.scenegraph.View;
import org.xith3d.utility.logging.X3DLog;
/**
* Handles the shading for coloring attributes.
*
* @author Yuri Vl. Gushchin
* @author Marvin Froehlich (aka Qudus)
*/
public class ColoringStateUnitPeer implements StateUnitPeer
{
public void apply( RenderAtom< ? > atom, StateUnit stateUnit, Object glObj, CanvasPeer canvasPeer, RenderPeer renderPeer, OpenGLCapabilities glCaps, View view, OpenGLStatesCache statesCache, RenderOptions options, long nanoTime, long nanoStep, RenderMode renderMode, long frameId )
{
if ( renderMode != RenderMode.NORMAL )
return;
ProfileTimer.startProfile( X3DLog.LOG_CHANNEL, "ColoringStateUnitPeer::apply()" );
final ColoringAttributes ca = ( (ColoringStateUnit)stateUnit ).getColoringAttributes();
final Colorf color = ca.getColor();
final TransparencyAttributes ta = ( (ColoringStateUnit)stateUnit ).getTransparencyAttributes();
if ( ( ta.getMode() == TransparencyAttributes.BLENDED ) && ta.isEnabled() )
{
if ( !statesCache.enabled || !statesCache.blendingEnabled )
{
X3DLog.debug( "Blending enabled" );
GL11.glEnable( GL11.GL_BLEND );
statesCache.blendingEnabled = true;
}
GL11.glBlendFunc( ta.getSrcBlendFunction().toOpenGL(), ta.getDstBlendFunction().toOpenGL() );
// The glColor4 variants specify all four color components explicitly
GL11.glColor4f( color.getRed(), color.getGreen(), color.getBlue(), 1f - ta.getTransparency() );
statesCache.color.set( color );
}
else
{
if ( !statesCache.enabled || statesCache.blendingEnabled )
{
X3DLog.debug( "Blending disabled" );
GL11.glDisable( GL11.GL_BLEND );
statesCache.blendingEnabled = false;
}
// The glColor3 variants specify new red, green, and blue values
// explicitly, and set the current alpha value to 1.0 implicitly.
GL11.glColor3f( color.getRed(), color.getGreen(), color.getBlue() );
statesCache.color.set( color.getRed(), color.getGreen(), color.getBlue() );
}
GL11.glShadeModel( ca.getShadeModel().toOpenGL() );
ProfileTimer.endProfile();
}
}