Shadow example? #69
Description
Could we get a shadow mapping example?
I'm having difficulty implementing it myself. I am not having conceptual problems, I conceptually understand shadow mapping and have made an OpenGL equivalent. Ive set up shadow mapping myself in sdl3gpu, but I keep getting funky results and ive tried tweaking and trying many different things in the maths. but keep getting super strange results.
An example posted here might catch any oversights i missed when setting it up.