public static void convertToFixed(Geometry geom, Format posFmt, Format nmFmt, Format tcFmt) {
geom.updateModelBound();
BoundingBox bbox = (BoundingBox) geom.getModelBound();
Mesh mesh = geom.getMesh();
VertexBuffer positions = mesh.getBuffer(Type.Position);
VertexBuffer normals = mesh.getBuffer(Type.Normal);
VertexBuffer texcoords = mesh.getBuffer(Type.TexCoord);
VertexBuffer indices = mesh.getBuffer(Type.Index);
// positions
FloatBuffer fb = (FloatBuffer) positions.getData();
if (posFmt != Format.Float) {
Buffer newBuf =
VertexBuffer.createBuffer(posFmt, positions.getNumComponents(), mesh.getVertexCount());
Transform t = convertPositions(fb, bbox, newBuf);
t.combineWithParent(geom.getLocalTransform());
geom.setLocalTransform(t);
VertexBuffer newPosVb = new VertexBuffer(Type.Position);
newPosVb.setupData(positions.getUsage(), positions.getNumComponents(), posFmt, newBuf);
mesh.clearBuffer(Type.Position);
mesh.setBuffer(newPosVb);
}
// normals, automatically convert to signed byte
fb = (FloatBuffer) normals.getData();
ByteBuffer bb = BufferUtils.createByteBuffer(fb.capacity());
convertNormals(fb, bb);
normals = new VertexBuffer(Type.Normal);
normals.setupData(Usage.Static, 3, Format.Byte, bb);
normals.setNormalized(true);
mesh.clearBuffer(Type.Normal);
mesh.setBuffer(normals);
// texcoords
fb = (FloatBuffer) texcoords.getData();
if (tcFmt != Format.Float) {
Buffer newBuf =
VertexBuffer.createBuffer(tcFmt, texcoords.getNumComponents(), mesh.getVertexCount());
convertTexCoords2D(fb, newBuf);
VertexBuffer newTcVb = new VertexBuffer(Type.TexCoord);
newTcVb.setupData(texcoords.getUsage(), texcoords.getNumComponents(), tcFmt, newBuf);
mesh.clearBuffer(Type.TexCoord);
mesh.setBuffer(newTcVb);
}
}
public static void compressIndexBuffer(Mesh mesh) {
int vertCount = mesh.getVertexCount();
VertexBuffer vb = mesh.getBuffer(Type.Index);
Format targetFmt;
if (vb.getFormat() == Format.UnsignedInt && vertCount <= 0xffff) {
if (vertCount <= 256) targetFmt = Format.UnsignedByte;
else targetFmt = Format.UnsignedShort;
} else if (vb.getFormat() == Format.UnsignedShort && vertCount <= 0xff) {
targetFmt = Format.UnsignedByte;
} else {
return;
}
IndexBuffer src = mesh.getIndexBuffer();
Buffer newBuf = VertexBuffer.createBuffer(targetFmt, vb.getNumComponents(), src.size());
VertexBuffer newVb = new VertexBuffer(Type.Index);
newVb.setupData(vb.getUsage(), vb.getNumComponents(), targetFmt, newBuf);
mesh.clearBuffer(Type.Index);
mesh.setBuffer(newVb);
IndexBuffer dst = mesh.getIndexBuffer();
for (int i = 0; i < src.size(); i++) {
dst.put(i, src.get(i));
}
}
public static VertexBuffer convertToUByte(VertexBuffer vb) {
FloatBuffer fb = (FloatBuffer) vb.getData();
ByteBuffer bb = BufferUtils.createByteBuffer(fb.capacity());
convertToUByte(fb, bb);
VertexBuffer newVb = new VertexBuffer(vb.getBufferType());
newVb.setupData(vb.getUsage(), vb.getNumComponents(), Format.UnsignedByte, bb);
newVb.setNormalized(true);
return newVb;
}
public static VertexBuffer convertToFloat(VertexBuffer vb) {
if (vb.getFormat() == Format.Float) return vb;
IntBuffer ib = (IntBuffer) vb.getData();
FloatBuffer fb = BufferUtils.createFloatBuffer(ib.capacity());
convertToFloat(ib, fb);
VertexBuffer newVb = new VertexBuffer(vb.getBufferType());
newVb.setupData(vb.getUsage(), vb.getNumComponents(), Format.Float, fb);
return newVb;
}
private void renderMeshDefault(Mesh mesh, int lod, int count) {
VertexBuffer indices;
VertexBuffer interleavedData = mesh.getBuffer(Type.InterleavedData);
if (interleavedData != null && interleavedData.isUpdateNeeded()) {
updateBufferData(interleavedData);
}
if (mesh.getNumLodLevels() > 0) {
indices = mesh.getLodLevel(lod);
} else {
indices = mesh.getBuffer(Type.Index);
}
for (VertexBuffer vb : mesh.getBufferList().getArray()) {
if (vb.getBufferType() == Type.InterleavedData
|| vb.getUsage() == Usage.CpuOnly // ignore cpu-only buffers
|| vb.getBufferType() == Type.Index) {
continue;
}
if (vb.getStride() == 0) {
// not interleaved
setVertexAttrib(vb);
} else {
// interleaved
setVertexAttrib(vb, interleavedData);
}
}
if (indices != null) {
drawTriangleList(indices, mesh, count);
} else {
GL gl = GLContext.getCurrentGL();
gl.glDrawArrays(convertElementMode(mesh.getMode()), 0, mesh.getVertexCount());
}
// TODO: Fix these to use IDList??
clearVertexAttribs();
clearTextureUnits();
resetFixedFuncBindings();
}
public void renderMesh(Mesh mesh, int lod, int count) {
if (mesh.getVertexCount() == 0) {
return;
}
if (context.pointSize != mesh.getPointSize()) {
glPointSize(mesh.getPointSize());
context.pointSize = mesh.getPointSize();
}
if (context.lineWidth != mesh.getLineWidth()) {
glLineWidth(mesh.getLineWidth());
context.lineWidth = mesh.getLineWidth();
}
boolean dynamic = false;
if (mesh.getBuffer(Type.InterleavedData) != null) {
throw new UnsupportedOperationException("Interleaved meshes are not supported");
}
if (mesh.getNumLodLevels() == 0) {
for (VertexBuffer vb : mesh.getBufferList().getArray()) {
if (vb.getUsage() != VertexBuffer.Usage.Static) {
dynamic = true;
break;
}
}
} else {
dynamic = true;
}
statistics.onMeshDrawn(mesh, lod);
// if (!dynamic) {
// dealing with a static object, generate display list
// renderMeshDisplayList(mesh);
// } else {
renderMeshDefault(mesh, lod, count);
// }
}
