Chalk Art 2021: Raytracing Propaganda

Completed 2021-09-19. Available releases:

Raytracing propaganda I made on my square for the Forest Grove Chalk Art Festival in 2021. Features a Utah teapot and the rendering equation.

This year, it was on-and-off light rain throughout the day, which made it difficult to even draw at all. However, working under a small shade structure / tent was good enough to keep the worst of it off.

The best way to use chalk is to crush it up into a powder, mix with water, and apply like a paint. This covers a concrete sidewalk squares more fully, and the result lasts longer (it's still water soluble and impermanent, of course). This photograph has been corrected from a picture in strong perspective, but is otherwise unaltered.

This seems to be the first chalk art entry I did. See also my next (2023) entry. (Apparently I skipped 2022.)

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