Add check for undefined normal coming from edit normal modifier, print error and replace with (0,0,1)
Add check for undefined normal coming from edit normal modifier, print error and replace with (0,0,1)


grit-engine/grit-engine,sparkprime/grit-engine,sparkprime/grit-engine,grit-engine/grit-engine,sparkprime/grit-engine,grit-engine/grit-engine,sparkprime/grit-engine,grit-engine/grit-engine