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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 android.opengl.Matrix;
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import org.distorted.library.type.Data1D;
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import org.distorted.library.type.Data3D;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public class MatrixEffectRotate extends MatrixEffect
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{
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private Data1D mAngle;
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private Data3D mAxis, mCenter;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Rotates the Object by 'angle' degrees around the center.
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* Static axis of rotation is given by the last parameter.
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*
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* @param angle Angle that we want to rotate the Object to. Unit: degrees
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* @param axis Axis of rotation
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* @param center Coordinates of the Point we are rotating around.
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*/
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public MatrixEffectRotate(Data1D angle, Data3D axis, Data3D center)
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{
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super(EffectName.ROTATE);
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mAngle = angle;
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mAxis = axis;
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mCenter = center;
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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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mCenter.get(uniforms,index+4,currentDuration,step);
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mAxis.get(uniforms,index+1,currentDuration,step);
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return mAngle.get(uniforms,index,currentDuration,step);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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public void apply(float[] matrix, float[] uniforms, int index)
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{
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float alpha = uniforms[NUM_UNIFORMS*index ];
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float axisX = uniforms[NUM_UNIFORMS*index+1];
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float axisY = uniforms[NUM_UNIFORMS*index+2];
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float axisZ = uniforms[NUM_UNIFORMS*index+3];
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float x = uniforms[NUM_UNIFORMS*index+4];
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float y = uniforms[NUM_UNIFORMS*index+5];
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float z = uniforms[NUM_UNIFORMS*index+6];
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Matrix.translateM(matrix, 0, x,-y, z);
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Matrix.rotateM( matrix, 0, alpha, axisX, axisY, axisZ);
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Matrix.translateM(matrix, 0,-x, y,-z);
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}
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}
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