Hello , thank you to the GWX team , well done
Checking GWX4 I saw some U-boot pictures with Dynamic Shadows , I knew that SH3 was made basically with Dynamic Shadows even if due to bugs in the code this Dynamic Shadows of SH3 were not working properly and therefore the rendering of the those Dynamic Shadows were problematic , but as far as I know SH4 have a Total lack of Dynamic Shadows , therefore I guess the GWX4 screenshots of U-Boot with Dynamic Shadows must be screenshots of SH3