A simple path tracer is used to render an old watch. The old watch scene is (almost) the same scene as rendered using image-based lighting in my Shadertoy shader “Old watch (IBL).”
You can find (the full source of) the shader on Shadertoy: https://www.shadertoy.com/view/MlyyzW.
Use your mouse to change the camera viewpoint.
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Old watch: a WebGL path tracer