Created to test the HAGL graphics library. For quick reference see the recording on Vimeo. To compile you need Nuclei SDK and RISC-V GNU toolchain.
$ git clone https://github.com/Nuclei-Software/nuclei-sdk.git
$ git clone https://github.com/tuupola/gd32v_effects.git --recursive
$ cd gd32v_effects
$ make SOC=gd32vf103 BOARD=gd32vf103c_longan_nano clean
$ make SOC=gd32vf103 BOARD=gd32vf103c_longan_nano upload
HAGL is hardware agnostic. You can run the demos also on your computer.