ref(shader): wrap indicated statement in conditionals
ref(shader): wrap indicated statement in conditionals

stardazed/stardazed,zenmumbler/stardazed-tx,zenmumbler/libzm,stardazed/stardazed-tx,stardazed/stardazed-tx,zenmumbler/stardazed-tx,stardazed/stardazed,stardazed/stardazed-tx,zenmumbler/libzm,zenmumbler/stardazed-tx,zenmumbler/libzm,zenmumbler/libzm,zenmumbler/stardazed-tx