Ray tracing with uLisp

#1

This article describes a simple ray tracer written in uLisp, and running on an Adafruit ItsyBitsy M4. It plots a colour image to a 160x128 colour TFT display.

World3
World3.jpg1440x661 169 KB

See: Ray tracing with uLisp.

#2

Hi David,
This seems truly amazing !
What display did you use for this ? (or what type of controller is on it)
I’m very interested in this matter.

Regards ,
Ronny

#3

Hi Ronny,

It’s a really cheap colour 128x160 TFT display with an SPI interface:

It’s based on the ST7735S controller.

Adafruit make an equivalent display (although it’s more expensive).

Regards,
David

#4

Hi David,

Thanks !
So I may assume that spi is working ok now ;-)
Anyway going to look for this display.

Regards
Ronny

#5

Yes, SPI seems to be working great!

#6

I’ve recently been testing ray tracing on the Adafruit CLUE. It’s an ideal platform for this application as it’s fast, and incorporates a 1.3" 240x240 colour TFT display:

ClueRayTrace
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For more details see: Ray tracing with uLisp.

For details of the Adafruit CLUE see: Adafruit nRF52840 boards.