Let's Code MS DOS 0x23: 2nd Reality Lens Effect

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Germany root42
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Published on ● Video Link: https://www.youtube.com/watch?v=7Lf4Z5YYbtU


Duration: 37:24
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In 1993 the Future Crew released the seminal demo “Second Reality”. Last episode we re-implemented the tunnel effect, this time we try to understand and replicate the lens effect. A bouncing, tinted glass ball that distorts the background image. Thirty years back it was pretty jaw dropping, and even today we can learn something!

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Music: A Little Wonder by Spino2006

Source code: https://github.com/root42/doslens

0:00 Introduction
2:49 Lens formula
6:50 The Code Stub
9:47 The Lens Precomputation
23:54 Drawing the Lens Effect
29:55 Adding a Color Tint
35:12 Closing Words



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