track resources used by pixel writes and exclude all others when doing pass 2 and ignore draws that aren't needed
track resources used by pixel writes and exclude all others when doing pass 2 and ignore draws that aren't needed

mcanthony/WebGL-Inspector,benvanik/WebGL-Inspector,mcanthony/WebGL-Inspector,TheKK/WebGL-Inspector,benvanik/WebGL-Inspector,TheKK/WebGL-Inspector,benvanik/WebGL-Inspector,mcanthony/WebGL-Inspector,TheKK/WebGL-Inspector,greggman/WebGL-Inspector,cedricpinson/WebGL-Inspector,cedricpinson/WebGL-Inspector,greggman/WebGL-Inspector,greggman/WebGL-Inspector,cedricpinson/WebGL-Inspector