DX12 : Fixed false transition when uploading ReadWrite buffers

h3d/impl/DX12Driver.hx

@@ -1438,14 +1438,14 @@ class DX12Driver extends h3d.impl.Driver {
 		transition(b.vbuf, COPY_DEST);
 		flushTransitions();
 		updateBuffer(b.vbuf, data, startVertex * b.format.strideBytes, vertexCount * b.format.strideBytes);
-		transition(b.vbuf, b.flags.has(IndexBuffer) ? INDEX_BUFFER : VERTEX_AND_CONSTANT_BUFFER);
+		transition(b.vbuf, b.flags.has(IndexBuffer) ? INDEX_BUFFER : ((b.flags.has(ReadWriteBuffer)) ? UNORDERED_ACCESS : VERTEX_AND_CONSTANT_BUFFER));
 	}
 
 	override function uploadBufferBytes(b:Buffer, startVertex:Int, vertexCount:Int, buf:haxe.io.Bytes, bufPos:Int) {
 		transition(b.vbuf, COPY_DEST);
 		flushTransitions();
 		updateBuffer(b.vbuf, @:privateAccess buf.b.offset(bufPos), startVertex * b.format.strideBytes, vertexCount * b.format.strideBytes);
-		transition(b.vbuf, b.flags.has(IndexBuffer) ? INDEX_BUFFER : VERTEX_AND_CONSTANT_BUFFER);
+		transition(b.vbuf, b.flags.has(IndexBuffer) ? INDEX_BUFFER : ((b.flags.has(ReadWriteBuffer)) ? UNORDERED_ACCESS : VERTEX_AND_CONSTANT_BUFFER));
 	}
 
 	// ------------ TEXTURES -------