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 setVertexAttrib(VertexBuffer vb, VertexBuffer idb) {
if (vb.getBufferType() == VertexBuffer.Type.Color && !context.useVertexColor) {
// Ignore vertex color buffer if vertex color is disabled.
return;
}
int arrayType = convertArrayType(vb.getBufferType());
if (arrayType == -1) {
return; // unsupported
}
glEnableClientState(arrayType);
context.boundAttribs[vb.getBufferType().ordinal()] = vb;
if (vb.getBufferType() == Type.Normal) {
// normalize if requested
if (vb.isNormalized() && !context.normalizeEnabled) {
glEnable(GL_NORMALIZE);
context.normalizeEnabled = true;
} else if (!vb.isNormalized() && context.normalizeEnabled) {
glDisable(GL_NORMALIZE);
context.normalizeEnabled = false;
}
}
// NOTE: Use data from interleaved buffer if specified
Buffer data = idb != null ? idb.getData() : vb.getData();
int comps = vb.getNumComponents();
int type = convertVertexFormat(vb.getFormat());
data.rewind();
switch (vb.getBufferType()) {
case Position:
if (!(data instanceof FloatBuffer)) {
throw new UnsupportedOperationException();
}
glVertexPointer(comps, vb.getStride(), (FloatBuffer) data);
break;
case Normal:
if (!(data instanceof FloatBuffer)) {
throw new UnsupportedOperationException();
}
glNormalPointer(vb.getStride(), (FloatBuffer) data);
break;
case Color:
if (data instanceof FloatBuffer) {
glColorPointer(comps, vb.getStride(), (FloatBuffer) data);
} else if (data instanceof ByteBuffer) {
glColorPointer(comps, true, vb.getStride(), (ByteBuffer) data);
} else {
throw new UnsupportedOperationException();
}
break;
case TexCoord:
if (!(data instanceof FloatBuffer)) {
throw new UnsupportedOperationException();
}
glTexCoordPointer(comps, vb.getStride(), (FloatBuffer) data);
break;
default:
// Ignore, this is an unsupported attribute for OpenGL1.
break;
}
}