As a programmer, I occasionally go and write some shaders for my games. This can render a shader when written in scratch code. Theoretically, you could make a fully raytraced 3D game, but I won't be the one to do that. If you want to edit the shader, open the project and edit the 'shader' custom block. Also, if it is lagging, bring up the quality. I would HIGHLY recommend using this in turbowarp (https://turbowarp.org/1148082258?hqpen) If you want to view my shaders (things like this), go to my Shadertoy account at https://www.shadertoy.com/user/Slothscript