Java Code Examples for com.jme3.scene.mesh.IndexBuffer#get()
The following examples show how to use
com.jme3.scene.mesh.IndexBuffer#get() .
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Example 1
| Source File: BIHTree.java From jmonkeyengine with BSD 3-Clause "New" or "Revised" License | 6 votes |
|
private void initTriList(FloatBuffer vb, IndexBuffer ib) {
pointData = new float[numTris * 3 * 3];
int p = 0;
for (int i = 0; i < numTris * 3; i += 3) {
int vert = ib.get(i) * 3;
pointData[p++] = vb.get(vert++);
pointData[p++] = vb.get(vert++);
pointData[p++] = vb.get(vert);
vert = ib.get(i + 1) * 3;
pointData[p++] = vb.get(vert++);
pointData[p++] = vb.get(vert++);
pointData[p++] = vb.get(vert);
vert = ib.get(i + 2) * 3;
pointData[p++] = vb.get(vert++);
pointData[p++] = vb.get(vert++);
pointData[p++] = vb.get(vert);
}
triIndices = new int[numTris];
for (int i = 0; i < numTris; i++) {
triIndices[i] = i;
}
}
Example 2
| Source File: CurvesHelper.java From MikuMikuStudio with BSD 2-Clause "Simplified" License | 6 votes |
|
/**
* The method generates normal buffer for the created mesh of the curve.
*
* @param indexes
* the indexes of the mesh points
* @param points
* the mesh's points
* @param smooth
* the flag indicating if the result is to be smooth or solid
* @return normals buffer for the mesh
*/
private FloatBuffer generateNormals(IndexBuffer indexes, FloatBuffer points, boolean smooth) {
Map<Integer, Vector3f> normalMap = new TreeMap<Integer, Vector3f>();
Vector3f[] allVerts = BufferUtils.getVector3Array(points);
for (int i = 0; i < indexes.size(); i += 3) {
int index1 = indexes.get(i);
int index2 = indexes.get(i + 1);
int index3 = indexes.get(i + 2);
Vector3f n = FastMath.computeNormal(allVerts[index1], allVerts[index2], allVerts[index3]);
this.addNormal(n, normalMap, smooth, index1, index2, index3);
}
FloatBuffer normals = BufferUtils.createFloatBuffer(normalMap.size() * 3);
for (Entry<Integer, Vector3f> entry : normalMap.entrySet()) {
normals.put(entry.getValue().x);
normals.put(entry.getValue().y);
normals.put(entry.getValue().z);
}
return normals;
}
Example 3
| Source File: BIHTree.java From MikuMikuStudio with BSD 2-Clause "Simplified" License | 6 votes |
|
private void initTriList(FloatBuffer vb, IndexBuffer ib) {
pointData = new float[numTris * 3 * 3];
int p = 0;
for (int i = 0; i < numTris * 3; i += 3) {
int vert = ib.get(i) * 3;
pointData[p++] = vb.get(vert++);
pointData[p++] = vb.get(vert++);
pointData[p++] = vb.get(vert);
vert = ib.get(i + 1) * 3;
pointData[p++] = vb.get(vert++);
pointData[p++] = vb.get(vert++);
pointData[p++] = vb.get(vert);
vert = ib.get(i + 2) * 3;
pointData[p++] = vb.get(vert++);
pointData[p++] = vb.get(vert++);
pointData[p++] = vb.get(vert);
}
triIndices = new int[numTris];
for (int i = 0; i < numTris; i++) {
triIndices[i] = i;
}
}
Example 4
| Source File: TangentBinormalGenerator.java From jmonkeyengine with BSD 3-Clause "New" or "Revised" License | 5 votes |
|
private static List<VertexData> processTriangles(Mesh mesh,
int[] index, Vector3f[] v, Vector2f[] t, boolean splitMirrored) {
IndexBuffer indexBuffer = mesh.getIndexBuffer();
FloatBuffer vertexBuffer = (FloatBuffer) mesh.getBuffer(Type.Position).getData();
if (mesh.getBuffer(Type.TexCoord) == null) {
throw new IllegalArgumentException("Can only generate tangents for "
+ "meshes with texture coordinates");
}
FloatBuffer textureBuffer = (FloatBuffer) mesh.getBuffer(Type.TexCoord).getData();
List<VertexData> vertices = initVertexData(vertexBuffer.limit() / 3);
for (int i = 0; i < indexBuffer.size() / 3; i++) {
for (int j = 0; j < 3; j++) {
index[j] = indexBuffer.get(i * 3 + j);
populateFromBuffer(v[j], vertexBuffer, index[j]);
populateFromBuffer(t[j], textureBuffer, index[j]);
}
TriangleData triData = processTriangle(index, v, t);
if(splitMirrored){
triData.setIndex(index);
triData.triangleOffset = i * 3 ;
}
vertices.get(index[0]).triangles.add(triData);
vertices.get(index[1]).triangles.add(triData);
vertices.get(index[2]).triangles.add(triData);
}
return vertices;
}
Example 5
| Source File: TangentBinormalGenerator.java From jmonkeyengine with BSD 3-Clause "New" or "Revised" License | 5 votes |
|
private static List<VertexData> processTriangleFan(Mesh mesh,
int[] index, Vector3f[] v, Vector2f[] t) {
IndexBuffer indexBuffer = mesh.getIndexBuffer();
FloatBuffer vertexBuffer = (FloatBuffer) mesh.getBuffer(Type.Position).getData();
FloatBuffer textureBuffer = (FloatBuffer) mesh.getBuffer(Type.TexCoord).getData();
List<VertexData> vertices = initVertexData(vertexBuffer.limit() / 3);
index[0] = indexBuffer.get(0);
index[1] = indexBuffer.get(1);
populateFromBuffer(v[0], vertexBuffer, index[0]);
populateFromBuffer(v[1], vertexBuffer, index[1]);
populateFromBuffer(t[0], textureBuffer, index[0]);
populateFromBuffer(t[1], textureBuffer, index[1]);
for (int i = 2; i < vertexBuffer.limit() / 3; i++) {
index[2] = indexBuffer.get(i);
populateFromBuffer(v[2], vertexBuffer, index[2]);
populateFromBuffer(t[2], textureBuffer, index[2]);
TriangleData triData = processTriangle(index, v, t);
vertices.get(index[0]).triangles.add(triData);
vertices.get(index[1]).triangles.add(triData);
vertices.get(index[2]).triangles.add(triData);
Vector3f vTemp = v[1];
v[1] = v[2];
v[2] = vTemp;
Vector2f tTemp = t[1];
t[1] = t[2];
t[2] = tTemp;
index[1] = index[2];
}
return vertices;
}
Example 6
| Source File: SilentTangentBinormalGenerator.java From OpenRTS with MIT License | 5 votes |
|
private static List<VertexData> processTriangles(Mesh mesh, int[] index, Vector3f[] v, Vector2f[] t, boolean splitMirrored) {
IndexBuffer indexBuffer = mesh.getIndexBuffer();
FloatBuffer vertexBuffer = (FloatBuffer) mesh.getBuffer(Type.Position).getData();
if (mesh.getBuffer(Type.TexCoord) == null) {
throw new IllegalArgumentException("Can only generate tangents for " + "meshes with texture coordinates");
}
FloatBuffer textureBuffer = (FloatBuffer) mesh.getBuffer(Type.TexCoord).getData();
List<VertexData> vertices = initVertexData(vertexBuffer.limit() / 3);
for (int i = 0; i < indexBuffer.size() / 3; i++) {
for (int j = 0; j < 3; j++) {
index[j] = indexBuffer.get(i * 3 + j);
populateFromBuffer(v[j], vertexBuffer, index[j]);
populateFromBuffer(t[j], textureBuffer, index[j]);
}
TriangleData triData = processTriangle(index, v, t);
if (splitMirrored) {
triData.setIndex(index);
triData.triangleOffset = i * 3;
}
if (triData != null) {
vertices.get(index[0]).triangles.add(triData);
vertices.get(index[1]).triangles.add(triData);
vertices.get(index[2]).triangles.add(triData);
}
}
return vertices;
}
Example 7
| Source File: TangentBinormalGenerator.java From MikuMikuStudio with BSD 2-Clause "Simplified" License | 5 votes |
|
private static VertexData[] processTriangles(Mesh mesh,
int[] index, Vector3f[] v, Vector2f[] t)
{
IndexBuffer indexBuffer = mesh.getIndexBuffer();
FloatBuffer vertexBuffer = (FloatBuffer) mesh.getBuffer(Type.Position).getData();
if (mesh.getBuffer(Type.TexCoord) == null)
throw new IllegalArgumentException("Can only generate tangents for "
+ "meshes with texture coordinates");
FloatBuffer textureBuffer = (FloatBuffer) mesh.getBuffer(Type.TexCoord).getData();
VertexData[] vertices = initVertexData(vertexBuffer.capacity() / 3);
for (int i = 0; i < indexBuffer.size() / 3; i++) {
for (int j = 0; j < 3; j++) {
index[j] = indexBuffer.get(i*3 + j);
populateFromBuffer(v[j], vertexBuffer, index[j]);
populateFromBuffer(t[j], textureBuffer, index[j]);
}
TriangleData triData = processTriangle(index, v, t);
if (triData != null) {
vertices[index[0]].triangles.add(triData);
vertices[index[1]].triangles.add(triData);
vertices[index[2]].triangles.add(triData);
}
}
return vertices;
}
Example 8
| Source File: SkeletonControl.java From jmonkeyengine with BSD 3-Clause "New" or "Revised" License | 4 votes |
|
/**
* Method to apply skinning transforms to a mesh's buffers
*
* @param mesh the mesh
* @param offsetMatrices the offset matices to apply
*/
private void applySkinning(Mesh mesh, Matrix4f[] offsetMatrices) {
int maxWeightsPerVert = mesh.getMaxNumWeights();
if (maxWeightsPerVert <= 0) {
throw new IllegalStateException("Max weights per vert is incorrectly set!");
}
int fourMinusMaxWeights = 4 - maxWeightsPerVert;
// NOTE: This code assumes the vertex buffer is in bind pose
// resetToBind() has been called this frame
VertexBuffer vb = mesh.getBuffer(Type.Position);
FloatBuffer fvb = (FloatBuffer) vb.getData();
fvb.rewind();
VertexBuffer nb = mesh.getBuffer(Type.Normal);
FloatBuffer fnb = (FloatBuffer) nb.getData();
fnb.rewind();
// get boneIndexes and weights for mesh
IndexBuffer ib = IndexBuffer.wrapIndexBuffer(mesh.getBuffer(Type.BoneIndex).getData());
FloatBuffer wb = (FloatBuffer) mesh.getBuffer(Type.BoneWeight).getData();
wb.rewind();
float[] weights = wb.array();
int idxWeights = 0;
TempVars vars = TempVars.get();
float[] posBuf = vars.skinPositions;
float[] normBuf = vars.skinNormals;
int iterations = (int) FastMath.ceil(fvb.limit() / ((float) posBuf.length));
int bufLength = posBuf.length;
for (int i = iterations - 1; i >= 0; i--) {
// read next set of positions and normals from native buffer
bufLength = Math.min(posBuf.length, fvb.remaining());
fvb.get(posBuf, 0, bufLength);
fnb.get(normBuf, 0, bufLength);
int verts = bufLength / 3;
int idxPositions = 0;
// iterate vertices and apply skinning transform for each effecting bone
for (int vert = verts - 1; vert >= 0; vert--) {
// Skip this vertex if the first weight is zero.
if (weights[idxWeights] == 0) {
idxPositions += 3;
idxWeights += 4;
continue;
}
float nmx = normBuf[idxPositions];
float vtx = posBuf[idxPositions++];
float nmy = normBuf[idxPositions];
float vty = posBuf[idxPositions++];
float nmz = normBuf[idxPositions];
float vtz = posBuf[idxPositions++];
float rx = 0, ry = 0, rz = 0, rnx = 0, rny = 0, rnz = 0;
for (int w = maxWeightsPerVert - 1; w >= 0; w--) {
float weight = weights[idxWeights];
Matrix4f mat = offsetMatrices[ib.get(idxWeights++)];
rx += (mat.m00 * vtx + mat.m01 * vty + mat.m02 * vtz + mat.m03) * weight;
ry += (mat.m10 * vtx + mat.m11 * vty + mat.m12 * vtz + mat.m13) * weight;
rz += (mat.m20 * vtx + mat.m21 * vty + mat.m22 * vtz + mat.m23) * weight;
rnx += (nmx * mat.m00 + nmy * mat.m01 + nmz * mat.m02) * weight;
rny += (nmx * mat.m10 + nmy * mat.m11 + nmz * mat.m12) * weight;
rnz += (nmx * mat.m20 + nmy * mat.m21 + nmz * mat.m22) * weight;
}
idxWeights += fourMinusMaxWeights;
idxPositions -= 3;
normBuf[idxPositions] = rnx;
posBuf[idxPositions++] = rx;
normBuf[idxPositions] = rny;
posBuf[idxPositions++] = ry;
normBuf[idxPositions] = rnz;
posBuf[idxPositions++] = rz;
}
fvb.position(fvb.position() - bufLength);
fvb.put(posBuf, 0, bufLength);
fnb.position(fnb.position() - bufLength);
fnb.put(normBuf, 0, bufLength);
}
vars.release();
vb.updateData(fvb);
nb.updateData(fnb);
}
Example 9
| Source File: MikkTSpaceImpl.java From jmonkeyengine with BSD 3-Clause "New" or "Revised" License | 4 votes |
|
private int getIndex(int face, int vert) {
IndexBuffer index = mesh.getIndexBuffer();
int vertIndex = index.get(face * 3 + vert);
return vertIndex;
}
Example 10
| Source File: TangentBinormalGenerator.java From jmonkeyengine with BSD 3-Clause "New" or "Revised" License | 4 votes |
|
private static List<VertexData> processTriangleStrip(Mesh mesh,
int[] index, Vector3f[] v, Vector2f[] t) {
IndexBuffer indexBuffer = mesh.getIndexBuffer();
FloatBuffer vertexBuffer = (FloatBuffer) mesh.getBuffer(Type.Position).getData();
FloatBuffer textureBuffer = (FloatBuffer) mesh.getBuffer(Type.TexCoord).getData();
List<VertexData> vertices = initVertexData(vertexBuffer.limit() / 3);
index[0] = indexBuffer.get(0);
index[1] = indexBuffer.get(1);
populateFromBuffer(v[0], vertexBuffer, index[0]);
populateFromBuffer(v[1], vertexBuffer, index[1]);
populateFromBuffer(t[0], textureBuffer, index[0]);
populateFromBuffer(t[1], textureBuffer, index[1]);
for (int i = 2; i < indexBuffer.size(); i++) {
index[2] = indexBuffer.get(i);
BufferUtils.populateFromBuffer(v[2], vertexBuffer, index[2]);
BufferUtils.populateFromBuffer(t[2], textureBuffer, index[2]);
boolean isDegenerate = isDegenerateTriangle(v[0], v[1], v[2]);
TriangleData triData = processTriangle(index, v, t);
if (!isDegenerate) {
vertices.get(index[0]).triangles.add(triData);
vertices.get(index[1]).triangles.add(triData);
vertices.get(index[2]).triangles.add(triData);
}
Vector3f vTemp = v[0];
v[0] = v[1];
v[1] = v[2];
v[2] = vTemp;
Vector2f tTemp = t[0];
t[0] = t[1];
t[1] = t[2];
t[2] = tTemp;
index[0] = index[1];
index[1] = index[2];
}
return vertices;
}
Example 11
| Source File: SkinningControl.java From jmonkeyengine with BSD 3-Clause "New" or "Revised" License | 4 votes |
|
/**
* Method to apply skinning transforms to a mesh's buffers
*
* @param mesh the mesh
* @param offsetMatrices the offset matices to apply
*/
private void applySkinning(Mesh mesh, Matrix4f[] offsetMatrices) {
int maxWeightsPerVert = mesh.getMaxNumWeights();
if (maxWeightsPerVert <= 0) {
throw new IllegalStateException("Max weights per vert is incorrectly set!");
}
int fourMinusMaxWeights = 4 - maxWeightsPerVert;
// NOTE: This code assumes the vertex buffer is in bind pose
// resetToBind() has been called this frame
VertexBuffer vb = mesh.getBuffer(Type.Position);
FloatBuffer fvb = (FloatBuffer) vb.getData();
fvb.rewind();
VertexBuffer nb = mesh.getBuffer(Type.Normal);
FloatBuffer fnb = (FloatBuffer) nb.getData();
fnb.rewind();
// get boneIndexes and weights for mesh
IndexBuffer ib = IndexBuffer.wrapIndexBuffer(mesh.getBuffer(Type.BoneIndex).getData());
FloatBuffer wb = (FloatBuffer) mesh.getBuffer(Type.BoneWeight).getData();
wb.rewind();
float[] weights = wb.array();
int idxWeights = 0;
TempVars vars = TempVars.get();
float[] posBuf = vars.skinPositions;
float[] normBuf = vars.skinNormals;
int iterations = (int) FastMath.ceil(fvb.limit() / ((float) posBuf.length));
int bufLength = posBuf.length;
for (int i = iterations - 1; i >= 0; i--) {
// read next set of positions and normals from native buffer
bufLength = Math.min(posBuf.length, fvb.remaining());
fvb.get(posBuf, 0, bufLength);
fnb.get(normBuf, 0, bufLength);
int verts = bufLength / 3;
int idxPositions = 0;
// iterate vertices and apply skinning transform for each effecting bone
for (int vert = verts - 1; vert >= 0; vert--) {
// Skip this vertex if the first weight is zero.
if (weights[idxWeights] == 0) {
idxPositions += 3;
idxWeights += 4;
continue;
}
float nmx = normBuf[idxPositions];
float vtx = posBuf[idxPositions++];
float nmy = normBuf[idxPositions];
float vty = posBuf[idxPositions++];
float nmz = normBuf[idxPositions];
float vtz = posBuf[idxPositions++];
float rx = 0, ry = 0, rz = 0, rnx = 0, rny = 0, rnz = 0;
for (int w = maxWeightsPerVert - 1; w >= 0; w--) {
float weight = weights[idxWeights];
Matrix4f mat = offsetMatrices[ib.get(idxWeights++)];
rx += (mat.m00 * vtx + mat.m01 * vty + mat.m02 * vtz + mat.m03) * weight;
ry += (mat.m10 * vtx + mat.m11 * vty + mat.m12 * vtz + mat.m13) * weight;
rz += (mat.m20 * vtx + mat.m21 * vty + mat.m22 * vtz + mat.m23) * weight;
rnx += (nmx * mat.m00 + nmy * mat.m01 + nmz * mat.m02) * weight;
rny += (nmx * mat.m10 + nmy * mat.m11 + nmz * mat.m12) * weight;
rnz += (nmx * mat.m20 + nmy * mat.m21 + nmz * mat.m22) * weight;
}
idxWeights += fourMinusMaxWeights;
idxPositions -= 3;
normBuf[idxPositions] = rnx;
posBuf[idxPositions++] = rx;
normBuf[idxPositions] = rny;
posBuf[idxPositions++] = ry;
normBuf[idxPositions] = rnz;
posBuf[idxPositions++] = rz;
}
fvb.position(fvb.position() - bufLength);
fvb.put(posBuf, 0, bufLength);
fnb.position(fnb.position() - bufLength);
fnb.put(normBuf, 0, bufLength);
}
vars.release();
vb.updateData(fvb);
nb.updateData(fnb);
}
Example 12
| Source File: SilentTangentBinormalGenerator.java From OpenRTS with MIT License | 4 votes |
|
private static List<VertexData> processTriangleStrip(Mesh mesh, int[] index, Vector3f[] v, Vector2f[] t) {
IndexBuffer indexBuffer = mesh.getIndexBuffer();
FloatBuffer vertexBuffer = (FloatBuffer) mesh.getBuffer(Type.Position).getData();
FloatBuffer textureBuffer = (FloatBuffer) mesh.getBuffer(Type.TexCoord).getData();
List<VertexData> vertices = initVertexData(vertexBuffer.limit() / 3);
index[0] = indexBuffer.get(0);
index[1] = indexBuffer.get(1);
populateFromBuffer(v[0], vertexBuffer, index[0]);
populateFromBuffer(v[1], vertexBuffer, index[1]);
populateFromBuffer(t[0], textureBuffer, index[0]);
populateFromBuffer(t[1], textureBuffer, index[1]);
for (int i = 2; i < indexBuffer.size(); i++) {
index[2] = indexBuffer.get(i);
BufferUtils.populateFromBuffer(v[2], vertexBuffer, index[2]);
BufferUtils.populateFromBuffer(t[2], textureBuffer, index[2]);
boolean isDegenerate = isDegenerateTriangle(v[0], v[1], v[2]);
TriangleData triData = processTriangle(index, v, t);
if (triData != null && !isDegenerate) {
vertices.get(index[0]).triangles.add(triData);
vertices.get(index[1]).triangles.add(triData);
vertices.get(index[2]).triangles.add(triData);
}
Vector3f vTemp = v[0];
v[0] = v[1];
v[1] = v[2];
v[2] = vTemp;
Vector2f tTemp = t[0];
t[0] = t[1];
t[1] = t[2];
t[2] = tTemp;
index[0] = index[1];
index[1] = index[2];
}
return vertices;
}
Example 13
| Source File: SilentTangentBinormalGenerator.java From OpenRTS with MIT License | 4 votes |
|
private static List<VertexData> processTriangleFan(Mesh mesh, int[] index, Vector3f[] v, Vector2f[] t) {
IndexBuffer indexBuffer = mesh.getIndexBuffer();
FloatBuffer vertexBuffer = (FloatBuffer) mesh.getBuffer(Type.Position).getData();
FloatBuffer textureBuffer = (FloatBuffer) mesh.getBuffer(Type.TexCoord).getData();
List<VertexData> vertices = initVertexData(vertexBuffer.limit() / 3);
index[0] = indexBuffer.get(0);
index[1] = indexBuffer.get(1);
populateFromBuffer(v[0], vertexBuffer, index[0]);
populateFromBuffer(v[1], vertexBuffer, index[1]);
populateFromBuffer(t[0], textureBuffer, index[0]);
populateFromBuffer(t[1], textureBuffer, index[1]);
for (int i = 2; i < vertexBuffer.limit() / 3; i++) {
index[2] = indexBuffer.get(i);
populateFromBuffer(v[2], vertexBuffer, index[2]);
populateFromBuffer(t[2], textureBuffer, index[2]);
TriangleData triData = processTriangle(index, v, t);
if (triData != null) {
vertices.get(index[0]).triangles.add(triData);
vertices.get(index[1]).triangles.add(triData);
vertices.get(index[2]).triangles.add(triData);
}
Vector3f vTemp = v[1];
v[1] = v[2];
v[2] = vTemp;
Vector2f tTemp = t[1];
t[1] = t[2];
t[2] = tTemp;
index[1] = index[2];
}
return vertices;
}
Example 14
| Source File: TangentBinormalGenerator.java From MikuMikuStudio with BSD 2-Clause "Simplified" License | 4 votes |
|
private static VertexData[] processTriangleStrip(Mesh mesh,
int[] index, Vector3f[] v, Vector2f[] t)
{
IndexBuffer indexBuffer = mesh.getIndexBuffer();
FloatBuffer vertexBuffer = (FloatBuffer) mesh.getBuffer(Type.Position).getData();
FloatBuffer textureBuffer = (FloatBuffer) mesh.getBuffer(Type.TexCoord).getData();
VertexData[] vertices = initVertexData(vertexBuffer.capacity() / 3);
index[0] = indexBuffer.get(0);
index[1] = indexBuffer.get(1);
populateFromBuffer(v[0], vertexBuffer, index[0]);
populateFromBuffer(v[1], vertexBuffer, index[1]);
populateFromBuffer(t[0], textureBuffer, index[0]);
populateFromBuffer(t[1], textureBuffer, index[1]);
for (int i = 2; i < indexBuffer.size(); i++) {
index[2] = indexBuffer.get(i);
BufferUtils.populateFromBuffer(v[2], vertexBuffer, index[2]);
BufferUtils.populateFromBuffer(t[2], textureBuffer, index[2]);
boolean isDegenerate = isDegenerateTriangle(v[0], v[1], v[2]);
TriangleData triData = processTriangle(index, v, t);
if (triData != null && !isDegenerate) {
vertices[index[0]].triangles.add(triData);
vertices[index[1]].triangles.add(triData);
vertices[index[2]].triangles.add(triData);
}
Vector3f vTemp = v[0];
v[0] = v[1];
v[1] = v[2];
v[2] = vTemp;
Vector2f tTemp = t[0];
t[0] = t[1];
t[1] = t[2];
t[2] = tTemp;
index[0] = index[1];
index[1] = index[2];
}
return vertices;
}
Example 15
| Source File: TangentBinormalGenerator.java From MikuMikuStudio with BSD 2-Clause "Simplified" License | 4 votes |
|
private static VertexData[] processTriangleFan(Mesh mesh,
int[] index, Vector3f[] v, Vector2f[] t)
{
IndexBuffer indexBuffer = mesh.getIndexBuffer();
FloatBuffer vertexBuffer = (FloatBuffer) mesh.getBuffer(Type.Position).getData();
FloatBuffer textureBuffer = (FloatBuffer) mesh.getBuffer(Type.TexCoord).getData();
VertexData[] vertices = initVertexData(vertexBuffer.capacity() / 3);
index[0] = indexBuffer.get(0);
index[1] = indexBuffer.get(1);
populateFromBuffer(v[0], vertexBuffer, index[0]);
populateFromBuffer(v[1], vertexBuffer, index[1]);
populateFromBuffer(t[0], textureBuffer, index[0]);
populateFromBuffer(t[1], textureBuffer, index[1]);
for (int i = 2; i < vertexBuffer.capacity() / 3; i++) {
index[2] = indexBuffer.get(i);
populateFromBuffer(v[2], vertexBuffer, index[2]);
populateFromBuffer(t[2], textureBuffer, index[2]);
TriangleData triData = processTriangle(index, v, t);
if (triData != null) {
vertices[index[0]].triangles.add(triData);
vertices[index[1]].triangles.add(triData);
vertices[index[2]].triangles.add(triData);
}
Vector3f vTemp = v[1];
v[1] = v[2];
v[2] = vTemp;
Vector2f tTemp = t[1];
t[1] = t[2];
t[2] = tTemp;
index[1] = index[2];
}
return vertices;
}
