Revision ef231eba
Added by Leszek Koltunski over 3 years ago
| src/main/java/org/distorted/examples/meshfile/FactoryCubit.java | ||
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| 262 | 262 |
mBuffer[0] = v1y*v2z - v2y*v1z; |
| 263 | 263 |
mBuffer[1] = v1z*v2x - v2z*v1x; |
| 264 | 264 |
mBuffer[2] = v1x*v2y - v2x*v1y; |
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android.util.Log.e("D", " buffer: "+mBuffer[0]+" "+mBuffer[1]+" "+mBuffer[2]);
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if( mBuffer[2]<0.0f ) |
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{
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mBuffer[0] *= -1.0f; |
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mBuffer[1] *= -1.0f; |
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mBuffer[2] *= -1.0f; |
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} |
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| 265 | 275 |
} |
| 266 | 276 |
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| 267 | 277 |
/////////////////////////////////////////////////////////////////////////////////////////////////// |
| ... | ... | |
| 306 | 316 |
} |
| 307 | 317 |
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| 308 | 318 |
info.scale = Math.max(maxX-minX,maxY-minY); |
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| 309 | 320 |
int len = vert3D.length; |
| 310 | 321 |
info.vertices = new float[2*len]; |
| 311 | 322 |
|
| ... | ... | |
| 367 | 378 |
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| 368 | 379 |
computeNormalVector(vert3D,0,1,foundIndex); |
| 369 | 380 |
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// rotate so that the normal vector becomes (0,0,1) |
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float axisX = -mBuffer[1]; |
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float axisY = mBuffer[0]; |
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float axisZ = 0.0f; |
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float vecLen = mBuffer[0]*mBuffer[0] + mBuffer[1]*mBuffer[1] + mBuffer[2]*mBuffer[2]; |
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vecLen = (float)Math.sqrt(vecLen); |
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mBuffer[0] /= vecLen; |
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mBuffer[1] /= vecLen; |
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mBuffer[2] /= vecLen; |
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float axiLen = axisX*axisX + axisY*axisY + axisZ*axisZ; |
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axiLen = (float)Math.sqrt(axiLen); |
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axisX /= axiLen; |
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axisY /= axiLen; |
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axisZ /= axiLen; |
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float cosTheta = mBuffer[2]; |
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float sinTheta = axiLen / vecLen; |
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mQuat1[0] = axisX*sinTheta; |
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mQuat1[1] = axisY*sinTheta; |
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mQuat1[2] = axisZ*sinTheta; |
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mQuat1[3] = cosTheta; |
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mQuat2[0] = axisX*sinTheta; |
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mQuat2[1] = axisY*sinTheta; |
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mQuat2[2] = axisZ*sinTheta; |
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mQuat2[3] = -cosTheta; |
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for (float[] vert : vert3D) |
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if( mBuffer[0]!=0.0f || mBuffer[1]!=0.0f ) |
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| 400 | 382 |
{
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quatMultiply(mQuat1, vert, mQuat3); |
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quatMultiply(mQuat3, mQuat2, vert); |
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// rotate so that the normal vector becomes (0,0,1) |
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float axisX = -mBuffer[1]; |
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float axisY = mBuffer[0]; |
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float axisZ = 0.0f; |
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float vecLen = mBuffer[0]*mBuffer[0] + mBuffer[1]*mBuffer[1] + mBuffer[2]*mBuffer[2]; |
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vecLen = (float)Math.sqrt(vecLen); |
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mBuffer[0] /= vecLen; |
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mBuffer[1] /= vecLen; |
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mBuffer[2] /= vecLen; |
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float axiLen = axisX*axisX + axisY*axisY + axisZ*axisZ; |
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axiLen = (float)Math.sqrt(axiLen); |
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axisX /= axiLen; |
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axisY /= axiLen; |
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axisZ /= axiLen; |
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float cosTheta = mBuffer[2]; |
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//float sinTheta = axiLen / vecLen; |
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float sinHalfTheta = (float)Math.sqrt(0.5f*(1-cosTheta)); |
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float cosHalfTheta = (float)Math.sqrt(0.5f*(1+cosTheta)); |
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mQuat1[0] = axisX*sinHalfTheta; |
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mQuat1[1] = axisY*sinHalfTheta; |
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mQuat1[2] = axisZ*sinHalfTheta; |
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mQuat1[3] = cosHalfTheta; |
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mQuat2[0] = axisX*sinHalfTheta; |
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mQuat2[1] = axisY*sinHalfTheta; |
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mQuat2[2] = axisZ*sinHalfTheta; |
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mQuat2[3] = -cosHalfTheta; |
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for (float[] vert : vert3D) |
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{
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quatMultiply(mQuat1, vert, mQuat3); |
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quatMultiply(mQuat3, mQuat2, vert); |
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} |
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| 403 | 420 |
} |
| 404 | 421 |
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// fit the whole thing in a square and remember the scale & 2D vertices |
| ... | ... | |
| 584 | 601 |
} |
| 585 | 602 |
} |
| 586 | 603 |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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private void printInfo(FaceInfo info) |
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{
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android.util.Log.e("D", "vx="+info.vx+" vy="+info.vy+" vz="+info.vz);
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android.util.Log.e("D", "qx="+info.qx+" qy="+info.qy+" qz="+info.qz+" qw="+info.qw);
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android.util.Log.e("D", "scale="+info.scale);
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String ver=""; |
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int len = info.vertices.length/2; |
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for(int i =0; i<len; i++) |
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{
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ver += ("("+info.vertices[2*i]+","+info.vertices[2*i+1]+") ");
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} |
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android.util.Log.e("D", "vertices= "+ver);
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
| 588 | 625 |
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| 589 | 626 |
MeshBase createRoundedSolid(final float[][] vertices, final int[][] vertIndexes, final float[][] bands, final int[] bandIndexes) |
Also available in: Unified diff
Face cubit creation: progress, a cube rendered almost correctly :)