I usually debug such issues with any gfx debugger (eg apitrace, nsight, ...). You'll see the results of every draw call, but the intermediate result of each TEV step is still hidden :/
I'd like such a full featured gfx debugger in dolphin, but I think it will be much too big.
I'd like such a full featured gfx debugger in dolphin, but I think it will be much too big.