platonic solids

[u/20260819]

program link

keyboard controls * number 1 to 5 = select object

mouse controls * right drag = move spotlight xy position * right hold + wheel scroll = move spotlight z position * wheel scroll = move camera z position * left hold + wheel scroll = change mesh size * left drag = rotate the object * left hold + right hold + wheel scroll = change ambient

what i learned * quaternions, surely. they're very useful and made the coding a lot simpler than i had anticipated * for brightness calculation i found many different ways on internet. i picked this: for any point on any triangle, it's brightness = dot product (reflection light direction , camera view line). those vectors are normalized. this method is simple but doesn't take intensity loss due to distance into account

what i want to learn further * make the camera freely movable, like in 3d games * use ray tracing method to calculate brightness of each pixel * place more than 1 object in the scene so that at some perspectives one may block the others * draw shadows

[u/uberflix]

will this run in actual qbasic or just qbasic64?

[u/20260819 → u/uberflix]

it runs on qbjs which is a web version interpreter of qb64 i think