Revision 724f67ee
Added by Leszek Koltunski 11 months ago
| src/main/java/org/distorted/library/mesh/MeshPolygon.java | ||
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*/ |
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public class MeshPolygon extends MeshBase |
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{
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private static final float NOT_DONE_YET = -1000; |
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private static final int SHAPE_DD = 0; |
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private static final int SHAPE_DU = 1; |
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private static final int SHAPE_UD = 2; |
| ... | ... | |
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private int numVertices; |
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private int extraIndex, extraVertices; |
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//private float[] mBandQuot;
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private float[] mBandQuot; |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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// polygonVertices>=3 , polygonBands>=2 |
| ... | ... | |
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remainingVert = numVertices; |
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} |
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/* |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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private void computeCache() |
| ... | ... | |
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mBandQuot[band] = (mPolygonBands[2*prev+1]-mPolygonBands[2*next+1]) / (mPolygonBands[2*next]-mPolygonBands[2*prev]); |
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} |
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} |
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*/ |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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private float getSpecialQuot(int index) |
| ... | ... | |
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attribs1[VERT1_ATTRIBS*vertex + POS_ATTRIB+1] = y; |
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attribs1[VERT1_ATTRIBS*vertex + POS_ATTRIB+2] = z; |
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int index = VERT1_ATTRIBS*vertex + NOR_ATTRIB; |
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if( quot==0.0f || quot==1.0f ) |
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{
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float vx = mBandQuot[polyBand]*xEdge; |
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float vy = mBandQuot[polyBand]*yEdge; |
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float vz = xEdge*xEdge + yEdge*yEdge; |
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float len = (float)Math.sqrt(vx*vx + vy*vy + vz*vz); |
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attribs1[index ] = vx/len; |
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attribs1[index+1] = vy/len; |
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attribs1[index+2] = vz/len; |
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} |
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else |
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{
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attribs1[index ] = NOT_DONE_YET; |
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} |
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attribs2[VERT2_ATTRIBS*vertex + TEX_ATTRIB ] = x+0.5f; |
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attribs2[VERT2_ATTRIBS*vertex + TEX_ATTRIB+1] = y+0.5f; |
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|
| ... | ... | |
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private void addVertexNormal(int vertex, int end1, int end2, float[] attribs1) |
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{
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android.util.Log.e("D", "vertex="+vertex+" end1="+end1+" end2="+end2);
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// android.util.Log.e("D", "vertex="+vertex+" end1="+end1+" end2="+end2);
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int iv = VERT1_ATTRIBS*vertex + POS_ATTRIB; |
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int i1 = VERT1_ATTRIBS*end1 + POS_ATTRIB; |
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int i2 = VERT1_ATTRIBS*end2 + POS_ATTRIB; |
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int index = VERT1_ATTRIBS*vertex + NOR_ATTRIB; |
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float vx = attribs1[iv ]; |
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float vy = attribs1[iv+1]; |
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float vz = attribs1[iv+2]; |
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if( attribs1[index] == NOT_DONE_YET) |
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{
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int iv = VERT1_ATTRIBS*vertex + POS_ATTRIB; |
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int i1 = VERT1_ATTRIBS*end1 + POS_ATTRIB; |
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int i2 = VERT1_ATTRIBS*end2 + POS_ATTRIB; |
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float x1 = attribs1[i1 ];
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float y1 = attribs1[i1+1];
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float z1 = attribs1[i1+2];
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float vx = attribs1[iv ];
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float vy = attribs1[iv+1];
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float vz = attribs1[iv+2];
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float x2 = attribs1[i2 ];
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float y2 = attribs1[i2+1];
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float z2 = attribs1[i2+2];
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float x1 = attribs1[i1 ];
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float y1 = attribs1[i1+1];
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float z1 = attribs1[i1+2];
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float dx1 = vx-x1;
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float dy1 = vy-y1;
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float dz1 = vz-z1;
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float x2 = attribs1[i2 ];
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float y2 = attribs1[i2+1];
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float z2 = attribs1[i2+2];
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float dx2 = vx-x2;
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float dy2 = vy-y2;
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float dz2 = vz-z2;
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float dx1 = vx-x1;
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float dy1 = vy-y1;
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float dz1 = vz-z1;
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float cx = dy1*dz2 - dz1*dy2;
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float cy = dz1*dx2 - dx1*dz2;
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float cz = dx1*dy2 - dy1*dx2;
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float dx2 = vx-x2;
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float dy2 = vy-y2;
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float dz2 = vz-z2;
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float len = (float)Math.sqrt(cx*cx + cy*cy + cz*cz); |
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float cx = dy1*dz2 - dz1*dy2; |
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float cy = dz1*dx2 - dx1*dz2; |
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float cz = dx1*dy2 - dy1*dx2; |
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int index = VERT1_ATTRIBS*vertex + NOR_ATTRIB;
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float len = (float)Math.sqrt(cx*cx + cy*cy + cz*cz);
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attribs1[index ] = cx/len; |
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attribs1[index+1] = cy/len; |
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attribs1[index+2] = cz/len; |
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attribs1[index ] = cx/len; |
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attribs1[index+1] = cy/len; |
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attribs1[index+2] = cz/len; |
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} |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
| ... | ... | |
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} |
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computeNumberOfVertices(); |
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//computeCache();
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computeCache(); |
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float[] attribs1= new float[VERT1_ATTRIBS*numVertices]; |
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float[] attribs2= new float[VERT2_ATTRIBS*numVertices]; |
Also available in: Unified diff
MeshPolygon: fix the normals.