I have included the gl.LINEAR bugfix here as it changes the images substantially. Based on Nigel's excellent analysis in cl/160710043. LGTM=nigeltao R=nigeltao CC=golang-codereviews https://golang.org/cl/168820043
I have included the gl.LINEAR bugfix here as it changes the images substantially. Based on Nigel's excellent analysis in cl/160710043. LGTM=nigeltao R=nigeltao CC=golang-codereviews https://golang.org/cl/168820043