Project

General

Profile

Download (4.02 KB) Statistics
| Branch: | Revision:

library / src / main / java / org / distorted / library / effect / MatrixEffectRotate.java @ c1fa9e3c

1 2014665f leszek
///////////////////////////////////////////////////////////////////////////////////////////////////
2
// Copyright 2017 Leszek Koltunski                                                               //
3
//                                                                                               //
4 46b572b5 Leszek Koltunski
// This file is part of Distorted.                                                               //
5 2014665f leszek
//                                                                                               //
6 46b572b5 Leszek Koltunski
// Distorted is free software: you can redistribute it and/or modify                             //
7 2014665f leszek
// it under the terms of the GNU General Public License as published by                          //
8
// the Free Software Foundation, either version 2 of the License, or                             //
9
// (at your option) any later version.                                                           //
10
//                                                                                               //
11 46b572b5 Leszek Koltunski
// Distorted is distributed in the hope that it will be useful,                                  //
12 2014665f leszek
// but WITHOUT ANY WARRANTY; without even the implied warranty of                                //
13
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                                 //
14
// GNU General Public License for more details.                                                  //
15
//                                                                                               //
16
// You should have received a copy of the GNU General Public License                             //
17 46b572b5 Leszek Koltunski
// along with Distorted.  If not, see <http://www.gnu.org/licenses/>.                            //
18 2014665f leszek
///////////////////////////////////////////////////////////////////////////////////////////////////
19
20
package org.distorted.library.effect;
21
22 227b03bd Leszek Koltunski
import android.opengl.Matrix;
23
24 6d62a900 Leszek Koltunski
import org.distorted.library.type.Data1D;
25
import org.distorted.library.type.Data3D;
26
27 2014665f leszek
///////////////////////////////////////////////////////////////////////////////////////////////////
28 faa3ff56 Leszek Koltunski
/**
29
 * Rotate the Mesh by 'angle' degrees around the center, along an axis.
30
 */
31 2014665f leszek
public class MatrixEffectRotate extends MatrixEffect
32
  {
33 0dd98279 Leszek Koltunski
  private Data1D mAngle;
34
  private Data3D mAxis, mCenter;
35
36 2014665f leszek
///////////////////////////////////////////////////////////////////////////////////////////////////
37 6bb59aad Leszek Koltunski
/**
38 faa3ff56 Leszek Koltunski
 * Only for use by the library itself.
39 6bb59aad Leszek Koltunski
 *
40 faa3ff56 Leszek Koltunski
 * @y.exclude
41 6bb59aad Leszek Koltunski
 */
42 15aa7d94 Leszek Koltunski
  public boolean compute(float[] uniforms, int index, long currentDuration, long step )
43
    {
44 e979d285 Leszek Koltunski
    mCenter.get(uniforms,index+CENTER_OFFSET,currentDuration,step);
45 0dd98279 Leszek Koltunski
    mAxis.get(uniforms,index+1,currentDuration,step);
46
    return mAngle.get(uniforms,index,currentDuration,step);
47 15aa7d94 Leszek Koltunski
    }
48 227b03bd Leszek Koltunski
49
///////////////////////////////////////////////////////////////////////////////////////////////////
50 faa3ff56 Leszek Koltunski
/**
51
 * Only for use by the library itself.
52
 *
53
 * @y.exclude
54
 */
55 227b03bd Leszek Koltunski
  public void apply(float[] matrix, float[] uniforms, int index)
56
    {
57 9f34a0f6 Leszek Koltunski
    float angle = uniforms[NUM_UNIFORMS*index  ];
58 227b03bd Leszek Koltunski
    float axisX = uniforms[NUM_UNIFORMS*index+1];
59
    float axisY = uniforms[NUM_UNIFORMS*index+2];
60
    float axisZ = uniforms[NUM_UNIFORMS*index+3];
61
62 e979d285 Leszek Koltunski
    float x = uniforms[NUM_UNIFORMS*index+CENTER_OFFSET  ];
63
    float y = uniforms[NUM_UNIFORMS*index+CENTER_OFFSET+1];
64
    float z = uniforms[NUM_UNIFORMS*index+CENTER_OFFSET+2];
65 227b03bd Leszek Koltunski
66 7bebb196 Leszek Koltunski
    Matrix.translateM(matrix, 0, x, y, z);
67 9f34a0f6 Leszek Koltunski
    Matrix.rotateM( matrix, 0, angle, axisX, axisY, axisZ);
68 7bebb196 Leszek Koltunski
    Matrix.translateM(matrix, 0,-x,-y,-z);
69 227b03bd Leszek Koltunski
    }
70 faa3ff56 Leszek Koltunski
71
///////////////////////////////////////////////////////////////////////////////////////////////////
72
// PUBLIC API
73
///////////////////////////////////////////////////////////////////////////////////////////////////
74
/**
75
 * Rotate the Mesh by 'angle' degrees around the center, along an axis.
76
 *
77
 * @param angle  Angle that we want to rotate the Object to. Unit: degrees
78
 * @param axis   Axis of rotation
79
 * @param center Coordinates of the Point we are rotating around.
80
 */
81
  public MatrixEffectRotate(Data1D angle, Data3D axis, Data3D center)
82
    {
83
    super(EffectName.ROTATE);
84
    mAngle = angle;
85
    mAxis = axis;
86
    mCenter = center;
87
    }
88 2014665f leszek
  }