Hey, thanks for reply. In other software switching to a wireframe or shaded viewport is far less intense on the graphics card - I can still see what I’m doing but without simulation of real world lighting. But in unreal it doesn’t seem to matter - lit, unlit or wireframe - lumen still calculates indirect light bouncing in the background. Ideally the unlit viewport would give my computer a break and stop calculating realistic lighting.
Not too dissimilar to pre-lumen times I guess. Is there a lumen on/off switch? Cheers
EDIT: Perhaps ctrl-R is actually working it’s just not effecting my fan noise. Pretty new to unreal. : )