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ST7735 3D Filled Vector Graphics Example

Smooth 3D Filled Vector Graphics implementation for STM32 and ST7735 1.8" 128x160 using fast SPI 36Mbps interface

Achieved up to 80 fps

YouTube video:

https://youtu.be/5y28ipwQs-E

More ST7735 and STM32 videos:

https://www.youtube.com/watch?v=o3AqITHf0mo&list=PLxb1losWErZ6y6GombzvtwRZ2l7brPv1s

Implemented features

  • optimized rendering without local framebuffer, in STM32 case 1 to 32 lines buffer can be used
  • pattern based background
  • 3D starfield
  • no floating point arithmetic
  • no slow trigonometric functions
  • rotations around X and Y axes
  • simple outside screen culling
  • rasterizer working for all convex polygons
  • backface culling
  • visible faces sorting by Z axis
  • Tested with stm32duino and Arduino IDE 1.6.5

Connections (header at the top):

LCD pin LCD pin name STM32
#01 LED 3.3V
#02 SCK PA5/SCK
#03 SCA PA7/MOSI
#04 A0/DC PA1 or any digital
#05 RESET PA0 or any digital
#06 CS PA2 or any digital
#07 GND GND
#08 VCC 3.3V

If you find it useful and you want to buy me a coffee or a beer:

https://www.paypal.me/cbm80amiga

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3D Filled Vector Graphics implementation for STM32

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