16384 samples on this render
eight flat triangles with a copy rotation constraint pointed at the circle for the aperture
orthographic side view of the camera lens in wireframe mode
normal render of what the camera is pointed at
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the luxcore render plugin has much faster converging caustics (does some photon mapping/bidirectional stuff iirc)
It’s also open source!
i try it and its very very slow on my machine
been tweaking it and i have a much improved render with the same sample count
