Revision ea9b68db
Added by Leszek Koltunski about 4 years ago
| src/main/java/org/distorted/examples/meshjoin/MeshJoinSurfaceView.java | ||
|---|---|---|
| 29 | 29 |
|
| 30 | 30 |
class MeshJoinSurfaceView extends GLSurfaceView |
| 31 | 31 |
{
|
| 32 |
private final static int DIRECTION_SENSITIVITY= 12; |
|
| 32 | 33 |
private int mX, mY; |
| 33 | 34 |
private MeshJoinRenderer mRenderer; |
| 34 | 35 |
|
| ... | ... | |
| 56 | 57 |
} |
| 57 | 58 |
|
| 58 | 59 |
/////////////////////////////////////////////////////////////////////////////////////////////////// |
| 59 |
|
|
| 60 |
|
|
| 61 |
private void resetQuats() |
|
| 62 |
{
|
|
| 63 |
float qx = mRenderer.mQuat1.get0(); |
|
| 64 |
float qy = mRenderer.mQuat1.get1(); |
|
| 65 |
float qz = mRenderer.mQuat1.get2(); |
|
| 66 |
float qw = mRenderer.mQuat1.get3(); |
|
| 67 |
|
|
| 68 |
float rx = mRenderer.mQuat2.get0(); |
|
| 69 |
float ry = mRenderer.mQuat2.get1(); |
|
| 70 |
float rz = mRenderer.mQuat2.get2(); |
|
| 71 |
float rw = mRenderer.mQuat2.get3(); |
|
| 72 |
|
|
| 73 |
// This is quaternion multiplication. (tx,ty,tz,tw) |
|
| 74 |
// is now equal to (qx,qy,qz,qw)*(rx,ry,rz,rw) |
|
| 75 |
float tx = rw*qx - rz*qy + ry*qz + rx*qw; |
|
| 76 |
float ty = rw*qy + rz*qx + ry*qw - rx*qz; |
|
| 77 |
float tz = rw*qz + rz*qw - ry*qx + rx*qy; |
|
| 78 |
float tw = rw*qw - rz*qz - ry*qy - rx*qx; |
|
| 79 |
|
|
| 80 |
// The point of this is so that there are always |
|
| 81 |
// exactly 2 quaternions: Quat1 representing the rotation |
|
| 82 |
// accumulating only since the last screen touch, and Quat2 |
|
| 83 |
// which remembers the combined effect of all previous |
|
| 84 |
// swipes. |
|
| 85 |
// We cannot be accumulating an ever-growing list of quaternions |
|
| 86 |
// and add a new one every time user swipes the screen - there |
|
| 87 |
// is a limited number of slots in the EffectQueueMatrix! |
|
| 88 |
mRenderer.mQuat1.set(0f, 0f, 0f, 1f); |
|
| 89 |
mRenderer.mQuat2.set(tx, ty, tz, tw); |
|
| 90 |
} |
|
| 91 |
|
|
| 92 |
/////////////////////////////////////////////////////////////////////////////////////////////////// |
|
| 93 |
|
|
| 60 | 94 |
@Override public boolean onTouchEvent(MotionEvent event) |
| 61 | 95 |
{
|
| 62 | 96 |
int action = event.getAction(); |
| ... | ... | |
| 87 | 121 |
|
| 88 | 122 |
mRenderer.mQuat1.set(px*sinA, py*sinA, pz*sinA, cosA); |
| 89 | 123 |
} |
| 90 |
} |
|
| 124 |
} |
|
| 125 |
|
|
| 126 |
if( (mX-x)*(mX-x) + (mY-y)*(mY-y) > mRenderer.mScreenMin*mRenderer.mScreenMin/(DIRECTION_SENSITIVITY*DIRECTION_SENSITIVITY) ) |
|
| 127 |
{
|
|
| 128 |
mX = x; |
|
| 129 |
mY = y; |
|
| 130 |
resetQuats(); |
|
| 131 |
} |
|
| 132 |
|
|
| 91 | 133 |
break; |
| 92 | 134 |
|
| 93 | 135 |
case MotionEvent.ACTION_UP : mX = -1; |
| 94 | 136 |
mY = -1; |
| 95 |
|
|
| 96 |
float qx = mRenderer.mQuat1.get0(); |
|
| 97 |
float qy = mRenderer.mQuat1.get1(); |
|
| 98 |
float qz = mRenderer.mQuat1.get2(); |
|
| 99 |
float qw = mRenderer.mQuat1.get3(); |
|
| 100 |
|
|
| 101 |
float rx = mRenderer.mQuat2.get0(); |
|
| 102 |
float ry = mRenderer.mQuat2.get1(); |
|
| 103 |
float rz = mRenderer.mQuat2.get2(); |
|
| 104 |
float rw = mRenderer.mQuat2.get3(); |
|
| 105 |
|
|
| 106 |
// This is quaternion multiplication. (tx,ty,tz,tw) |
|
| 107 |
// is now equal to (qx,qy,qz,qw)*(rx,ry,rz,rw) |
|
| 108 |
float tx = rw*qx - rz*qy + ry*qz + rx*qw; |
|
| 109 |
float ty = rw*qy + rz*qx + ry*qw - rx*qz; |
|
| 110 |
float tz = rw*qz + rz*qw - ry*qx + rx*qy; |
|
| 111 |
float tw = rw*qw - rz*qz - ry*qy - rx*qx; |
|
| 112 |
|
|
| 113 |
// The point of this is so that there are always |
|
| 114 |
// exactly 2 quaternions: Quat1 representing the rotation |
|
| 115 |
// accumulating only since the last screen touch, and Quat2 |
|
| 116 |
// which remembers the combined effect of all previous |
|
| 117 |
// swipes. |
|
| 118 |
// We cannot be accumulating an ever-growing list of quaternions |
|
| 119 |
// and add a new one every time user swipes the screen - there |
|
| 120 |
// is a limited number of slots in the EffectQueueMatrix! |
|
| 121 |
mRenderer.mQuat1.set(0f, 0f, 0f, 1f); |
|
| 122 |
mRenderer.mQuat2.set(tx, ty, tz, tw); |
|
| 123 |
|
|
| 137 |
resetQuats(); |
|
| 124 | 138 |
break; |
| 125 | 139 |
} |
| 126 | 140 |
|
Also available in: Unified diff
Progress with MeshJoin app.
Fix rotating in some apps.