Revision a51fe521
Added by Leszek Koltunski about 7 years ago
| src/main/java/org/distorted/library/MeshFlat.java | ||
|---|---|---|
| 42 | 42 |
/////////////////////////////////////////////////////////////////////////////////////////////////// |
| 43 | 43 |
// Create a flat, full grid. |
| 44 | 44 |
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private void computeNumberOfVertices(int cols, int rows)
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private void computeNumberOfVertices(int cols, int rows) |
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| 46 | 46 |
{
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mRows=rows; |
| 48 | 48 |
mCols=cols; |
| 49 | 49 |
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| 50 | 50 |
if( cols==1 && rows==1 ) |
| 51 | 51 |
{
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dataLength = 4;
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numVertices = 4;
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| 53 | 53 |
} |
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else |
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{
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dataLength = 2*( mRows*mCols +2*mRows - 1) +2*(mCols>=2 ? mRows:0) +
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(mCols>=2 && mRows>=2 ? 2*mRows-2 : 1); |
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numVertices = 2*( mRows*mCols +2*mRows - 1) +2*(mCols>=2 ? mRows:0) +
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(mCols>=2 && mRows>=2 ? 2*mRows-2 : 1);
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} |
| 59 | 59 |
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//android.util.Log.e("BITMAP","vertices="+dataLength+" rows="+mRows+" cols="+mCols);
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//android.util.Log.e("BITMAP","vertices="+numVertices+" rows="+mRows+" cols="+mCols);
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remainingVert = dataLength;
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remainingVert = numVertices;
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} |
| 64 | 64 |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
| 67 | 67 |
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private int addVertex(int vertex, float x, float y, float[] position, float[] normal, float[] texture)
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private int addVertex(int vertex, float x, float y, float[] attribs)
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{
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remainingVert--; |
| 71 | 71 |
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position[3*vertex ] = x-0.5f;
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position[3*vertex+1] = 0.5f-y;
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position[3*vertex+2] = 0;
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attribs[8*vertex ] = x-0.5f;
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attribs[8*vertex+1] = 0.5f-y;
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attribs[8*vertex+2] = 0;
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| 75 | 75 |
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texture[2*vertex ] = x; |
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texture[2*vertex+1] = 1.0f-y; |
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attribs[8*vertex+3] = 0.0f; |
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attribs[8*vertex+4] = 0.0f; |
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attribs[8*vertex+5] = 1.0f; |
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| 78 | 79 |
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normal[3*vertex ] = 0.0f; |
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normal[3*vertex+1] = 0.0f; |
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normal[3*vertex+2] = 1.0f; |
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attribs[8*vertex+6] = x; |
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attribs[8*vertex+7] = 1.0f-y; |
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return vertex+1; |
| 84 | 84 |
} |
| 85 | 85 |
/////////////////////////////////////////////////////////////////////////////////////////////////// |
| 86 | 86 |
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private int repeatLast(int vertex, float[] position, float[] normal, float[] texture)
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private int repeatLast(int vertex, float[] attribs)
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{
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remainingVert--; |
| 90 | 90 |
|
| ... | ... | |
| 92 | 92 |
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if( vertex>0 ) |
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{
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position[3*vertex ] = position[3*vertex-3]; |
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position[3*vertex+1] = position[3*vertex-2]; |
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position[3*vertex+2] = position[3*vertex-1]; |
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normal[3*vertex ] = normal[3*vertex-3]; |
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normal[3*vertex+1] = normal[3*vertex-2]; |
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normal[3*vertex+2] = normal[3*vertex-1]; |
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texture[2*vertex ] = texture[2*vertex-2]; |
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texture[2*vertex+1] = texture[2*vertex-1]; |
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attribs[8*vertex ] = attribs[8*vertex-8]; |
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attribs[8*vertex+1] = attribs[8*vertex-7]; |
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attribs[8*vertex+2] = attribs[8*vertex-6]; |
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attribs[8*vertex+3] = attribs[8*vertex-5]; |
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attribs[8*vertex+4] = attribs[8*vertex-4]; |
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attribs[8*vertex+5] = attribs[8*vertex-3]; |
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attribs[8*vertex+6] = attribs[8*vertex-2]; |
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attribs[8*vertex+7] = attribs[8*vertex-1]; |
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| 105 | 103 |
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vertex++; |
| 107 | 105 |
} |
| ... | ... | |
| 111 | 109 |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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private void buildGrid(float[] position, float[] normal, float[] texture)
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private void buildGrid(float[] attribs)
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{
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boolean lastBlockIsNE = false; |
| 117 | 115 |
boolean currentBlockIsNE; |
| ... | ... | |
| 135 | 133 |
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if( col==0 || (lastBlockIsNE^currentBlockIsNE) ) |
| 137 | 135 |
{
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if( row!=0 && col==0 ) vertex = repeatLast(vertex,position,normal,texture);
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vertex= addVertex( vertex, x, y+(currentBlockIsNE?0:Y), position, normal, texture);
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if( row!=0 && col==0 ) vertex = repeatLast(vertex,position,normal,texture);
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if( lastBlockIsNE^currentBlockIsNE) vertex = repeatLast(vertex,position,normal,texture);
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vertex= addVertex( vertex, x, y+(currentBlockIsNE?Y:0), position, normal, texture);
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if( row!=0 && col==0 ) vertex = repeatLast(vertex,attribs);
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vertex= addVertex( vertex, x, y+(currentBlockIsNE?0:Y), attribs);
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if( row!=0 && col==0 ) vertex = repeatLast(vertex,attribs);
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if( lastBlockIsNE^currentBlockIsNE) vertex = repeatLast(vertex,attribs);
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vertex= addVertex( vertex, x, y+(currentBlockIsNE?Y:0), attribs);
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} |
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vertex= addVertex( vertex, x+X, y+(currentBlockIsNE?0:Y), position, normal, texture);
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vertex= addVertex( vertex, x+X, y+(currentBlockIsNE?Y:0), position, normal, texture);
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vertex= addVertex( vertex, x+X, y+(currentBlockIsNE?0:Y), attribs);
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vertex= addVertex( vertex, x+X, y+(currentBlockIsNE?Y:0), attribs);
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| 146 | 144 |
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lastBlockIsNE = currentBlockIsNE; |
| 148 | 146 |
x+=X; |
| ... | ... | |
| 156 | 154 |
|
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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/* |
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private static String debug(float[] val, int stop)
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private static String debug(float[] val, int stop) |
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{
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String ret=""; |
| 162 | 160 |
|
| ... | ... | |
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return ret; |
| 170 | 168 |
} |
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*/ |
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|
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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float[] getBoundingVertices()
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float[] getBoundingVertices() |
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{
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return mBoundingVert; |
| 178 | 175 |
} |
| ... | ... | |
| 186 | 183 |
* @param cols Number of columns in the grid. |
| 187 | 184 |
* @param rows Number of rows in the grid. |
| 188 | 185 |
*/ |
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public MeshFlat(int cols, int rows) |
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{
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super(0.0f); |
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computeNumberOfVertices(cols,rows); |
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float[] positionData= new float[POSITION_DATA_SIZE*dataLength]; |
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float[] normalData = new float[NORMAL_DATA_SIZE *dataLength]; |
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float[] textureData = new float[TEX_DATA_SIZE *dataLength]; |
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buildGrid(positionData,normalData,textureData); |
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public MeshFlat(int cols, int rows) |
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{
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super(0.0f); |
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computeNumberOfVertices(cols,rows); |
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| 199 | 190 |
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//android.util.Log.e("CUBES","dataLen="+dataLength);
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//android.util.Log.d("CUBES", "position: "+debug(positionData,3) );
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//android.util.Log.d("CUBES", "normal: " +debug( normalData,3) );
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//android.util.Log.d("CUBES", "texture: " +debug( textureData,2) );
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float[] attribs= new float[(POSITION_DATA_SIZE+NORMAL_DATA_SIZE+TEX_DATA_SIZE)*numVertices]; |
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| 204 | 192 |
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if( remainingVert!=0 ) |
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android.util.Log.d("BITMAP", "remainingVert " +remainingVert );
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buildGrid(attribs); |
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| 207 | 194 |
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mMeshPositions = ByteBuffer.allocateDirect(POSITION_DATA_SIZE*dataLength*BYTES_PER_FLOAT).order(ByteOrder.nativeOrder()).asFloatBuffer();
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mMeshPositions.put(positionData).position(0);
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//android.util.Log.e("MeshFlat", "dataLen="+numVertices);
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//android.util.Log.d("MeshFlat", "attribs: "+debug(attribs,8) );
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| 210 | 197 |
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mMeshNormals = ByteBuffer.allocateDirect(NORMAL_DATA_SIZE*dataLength*BYTES_PER_FLOAT).order(ByteOrder.nativeOrder()).asFloatBuffer();
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mMeshNormals.put(normalData).position(0);
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if( remainingVert!=0 )
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android.util.Log.d("BITMAP", "remainingVert " +remainingVert );
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| 213 | 200 |
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mMeshTexture = ByteBuffer.allocateDirect(TEX_DATA_SIZE*dataLength*BYTES_PER_FLOAT).order(ByteOrder.nativeOrder()).asFloatBuffer(); |
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mMeshTexture.put(textureData).position(0); |
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} |
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} |
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mVertAttribs = ByteBuffer.allocateDirect(numVertices*VERTSIZE).order(ByteOrder.nativeOrder()).asFloatBuffer(); |
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mVertAttribs.put(attribs).position(0); |
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} |
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} |
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Also available in: Unified diff
Move from unpacked to packad server-side Vertex attribute buffer.