|
1
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
2
|
// Copyright 2017 Leszek Koltunski //
|
|
3
|
// //
|
|
4
|
// This file is part of Distorted. //
|
|
5
|
// //
|
|
6
|
// Distorted is free software: you can redistribute it and/or modify //
|
|
7
|
// 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
|
// Distorted is distributed in the hope that it will be useful, //
|
|
12
|
// 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
|
// along with Distorted. If not, see <http://www.gnu.org/licenses/>. //
|
|
18
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
19
|
|
|
20
|
package org.distorted.library.effect;
|
|
21
|
|
|
22
|
import org.distorted.library.type.Data3D;
|
|
23
|
import org.distorted.library.type.Data4D;
|
|
24
|
import org.distorted.library.type.Data5D;
|
|
25
|
import org.distorted.library.type.Static4D;
|
|
26
|
|
|
27
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
28
|
|
|
29
|
public class VertexEffectWave extends VertexEffect
|
|
30
|
{
|
|
31
|
private Data5D mWave;
|
|
32
|
private Data3D mCenter;
|
|
33
|
private Data4D mRegion;
|
|
34
|
|
|
35
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
36
|
/**
|
|
37
|
* Directional, sinusoidal wave effect.
|
|
38
|
*
|
|
39
|
* @param wave A 5-dimensional data structure describing the wave: first member is the amplitude,
|
|
40
|
* second is the wave length, third is the phase (i.e. when phase = PI/2, the sine
|
|
41
|
* wave at the center does not start from sin(0), but from sin(PI/2) ) and the next two
|
|
42
|
* describe the 'direction' of the wave.
|
|
43
|
* <p>
|
|
44
|
* Wave direction is defined to be a 3D vector of length 1. To define such vectors, we
|
|
45
|
* need 2 floats: thus the third member is the angle Alpha (in degrees) which the vector
|
|
46
|
* forms with the XY-plane, and the fourth is the angle Beta (again in degrees) which
|
|
47
|
* the projection of the vector to the XY-plane forms with the Y-axis (counterclockwise).
|
|
48
|
* <p>
|
|
49
|
* <p>
|
|
50
|
* Example1: if Alpha = 90, Beta = 90, (then V=(0,0,1) ) and the wave acts 'vertically'
|
|
51
|
* in the X-direction, i.e. cross-sections of the resulting surface with the XZ-plane
|
|
52
|
* will be sine shapes.
|
|
53
|
* <p>
|
|
54
|
* Example2: if Alpha = 90, Beta = 0, the again V=(0,0,1) and the wave is 'vertical',
|
|
55
|
* but this time it waves in the Y-direction, i.e. cross sections of the surface and the
|
|
56
|
* YZ-plane with be sine shapes.
|
|
57
|
* <p>
|
|
58
|
* Example3: if Alpha = 0 and Beta = 45, then V=(sqrt(2)/2, -sqrt(2)/2, 0) and the wave
|
|
59
|
* is entirely 'horizontal' and moves point (x,y,0) in direction V by whatever is the
|
|
60
|
* value if sin at this point.
|
|
61
|
* @param center 3-dimensional Data that, at any given time, returns the Center of the Effect.
|
|
62
|
* @param region Region that masks the Effect.
|
|
63
|
*/
|
|
64
|
public VertexEffectWave(Data5D wave, Data3D center, Data4D region)
|
|
65
|
{
|
|
66
|
super(EffectName.WAVE);
|
|
67
|
mWave = wave;
|
|
68
|
mCenter = center;
|
|
69
|
mRegion = (region==null ? new Static4D(0,0,Float.MAX_VALUE, Float.MAX_VALUE) : region);
|
|
70
|
}
|
|
71
|
|
|
72
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
73
|
/**
|
|
74
|
* Directional, sinusoidal wave effect.
|
|
75
|
*
|
|
76
|
* @param wave see {@link VertexEffectWave(Data5D,Data3D)}
|
|
77
|
* @param center 3-dimensional Data that, at any given time, returns the Center of the Effect.
|
|
78
|
*/
|
|
79
|
public VertexEffectWave(Data5D wave, Data3D center)
|
|
80
|
{
|
|
81
|
super(EffectName.WAVE);
|
|
82
|
mWave = wave;
|
|
83
|
mCenter = center;
|
|
84
|
mRegion = new Static4D(0,0,Float.MAX_VALUE, Float.MAX_VALUE);
|
|
85
|
}
|
|
86
|
|
|
87
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
88
|
|
|
89
|
public boolean compute(float[] uniforms, int index, long currentDuration, long step )
|
|
90
|
{
|
|
91
|
mCenter.get(uniforms,index+5,currentDuration,step);
|
|
92
|
mRegion.get(uniforms,index+8,currentDuration,step);
|
|
93
|
boolean ret = mWave.get(uniforms,index,currentDuration,step);
|
|
94
|
|
|
95
|
uniforms[index+2] = (float)(Math.PI*uniforms[index+2]/180);
|
|
96
|
uniforms[index+3] = (float)(Math.PI*uniforms[index+3]/180);
|
|
97
|
uniforms[index+4] = (float)(Math.PI*uniforms[index+4]/180);
|
|
98
|
uniforms[index+9] =-uniforms[index+9];
|
|
99
|
|
|
100
|
return ret;
|
|
101
|
}
|
|
102
|
}
|