Raycaster Sampling

A stress test of a 2-D quasi-monte-carlo rayshooter engine I'm writing for Grasshopper2. The goal is to generate high quality images, even if it takes a long time. This image must be viewed at exactly 100% size otherwise the scaling will introduce moire patterns.

This test renders a set of stacked quadrilaterals, 5 pixels high along the left edge and 0.25 pixels high along the right.

I guess the good news is that there's little point in sampling more than 32/64 times per pixel, the quality doesn't improve noticeably. Shame the moire pattern remained in the upper right corner. I'm guessing an anti-aliasing scheme which exceeds a single pixel radius is needed to get rid of that, but I haven't tested that yet.