# Polygon divided to Triangles (Cycles)

How can I achieve flat poly surfaces without the render dividing it into triangles?

In Object Mode and Eevee it looks ok, but not when rendered in Cycles.

• Technically, every render engine divides all the quads into triangles - no exceptions. You can mask it with shading, but you can't prevent it. – metaphor_set Jul 13 '19 at 22:57

You can use shade smooth to get a similar effect in cycles:

Select the polygon-face, and do Face -> shade smooth

Happy Blending! :)

• Not exactly an answer to the question. Where's the render result from Cycles? – metaphor_set Jul 13 '19 at 22:58
• This is shown in the rendered view (with cycles, when in edit mode) I chose this view to show that there is no geometry change between both, while only the first one shows the theoretical edge. The cycles rendered view matches the result of a render in cycles. – Robert Roth Jul 14 '19 at 7:13

I gues that cycles decided to show a triangle instead of a quad because the vertex of that quad are not align. you can flatten the face of that quad by selecting it and pressing w-> loop tool-> flatten

it seems normal on the view port but sho tri on cycles render

if you don't have that option, simply active it on the add-ons preferences (next picture)

hit command + "," to access the preferences and type loop in the add-ons section

the vertex are now aligned and there is no more tri (but the shape did change a little)