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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2017 Leszek Koltunski //
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// //
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// This file is part of Distorted. //
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// //
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// Distorted is free software: you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation, either version 2 of the License, or //
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// (at your option) any later version. //
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// //
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// Distorted 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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// GNU General Public License for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with Distorted. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////////////////////
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package org.distorted.library.effect;
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import org.distorted.library.type.Data3D;
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import org.distorted.library.type.Dynamic3D;
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import org.distorted.library.type.Static3D;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public class MatrixEffectShear extends MatrixEffect
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{
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private static final String NAME = "SHEAR";
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private static final float[] UNITIES = new float[] {0.0f,0.0f,0.0f};
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private static final int DIMENSION = 3;
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private static final boolean SUPPORTS_CENTER = true;
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private static final boolean SUPPORTS_REGION = false;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Shears the Object.
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*
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* @param shear The 3-tuple of shear factors. The first controls level
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* of shearing in the X-axis, second - Y-axis and the third -
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* Z-axis. Each is the tangens of the shear angle, i.e 0 -
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* no shear, 1 - shear by 45 degrees (tan(45deg)=1) etc.
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* @param center Center of shearing, i.e. the point which stays unmoved.
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*/
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public MatrixEffectShear(Data3D shear, Data3D center)
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{
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super(SHEAR,UNITIES,DIMENSION,SUPPORTS_CENTER,SUPPORTS_REGION,NAME);
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if( shear instanceof Static3D)
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{
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mStatic0 = (Static3D)shear;
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}
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else if ( shear instanceof Dynamic3D)
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{
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mDynamic0 = (Dynamic3D)shear;
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}
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if( center instanceof Static3D)
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{
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mStaticCenter = (Static3D)center;
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}
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else if( center instanceof Dynamic3D )
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{
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mDynamicCenter = (Dynamic3D)center;
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public boolean compute(float[] uniforms, int index, long currentDuration, long step )
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{
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if( mDynamicCenter!=null )
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{
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mDynamicCenter.interpolateMain(uniforms,index+4,currentDuration,step);
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}
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else
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{
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uniforms[index+4] = mStaticCenter.getX();
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uniforms[index+5] = mStaticCenter.getY();
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uniforms[index+6] = mStaticCenter.getZ();
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}
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if( mDynamic0!=null )
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{
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return mDynamic0.interpolateMain(uniforms,index,currentDuration,step);
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}
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else
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{
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uniforms[index ] = ((Static3D)mStatic0).getX();
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uniforms[index+1] = ((Static3D)mStatic0).getY();
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uniforms[index+2] = ((Static3D)mStatic0).getZ();
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return false;
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}
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}
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}
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