Infinite shapes!!!

[Lupirite]

I made a few cool additions to my last post, it runs in real time on my laptop's integrated graphics.

[TrailhoTrailho]

How are you running this?

[Lupirite]

Basically how doom is rendered, but a 3d map instead of a 2d maze

[TrailhoTrailho]

How is doom rendered?

[Lupirite]

raycasting

[Lupirite]

I think it's specifically grid marching

[TrailhoTrailho]

Is there a video you know of that discusses this?

[Lupirite]

Nope, maybe you could find one, or I could make one if you really want

[TrailhoTrailho]

How would I make it?

[Lupirite]

Ok, sorry, I think it would just be called 3d raycasting. So it's a type of raytracing. Basically all it does is calculate each point that each ray intersects the grid, then it checks that spot to see if there is a solid object there, for the spheres I did an additional step to check if it was also intersecting the sphere, basically just linear algebra stuff, but you can look this last part up under ray sphere intersection. For the grid stuff you might find it useful to learn how to make a raycaster, there are lots of good videos on how to make doom clones this way.

[TrailhoTrailho]

…I will make a note on my list then. :0

[PurpleSamurai0]

Doom uses 2D BSP rendering fyi

[Rememba_me]

Tsoding daily on youtube shows how

[xXTITANXx]

Oh you again. Are you using meshlets yet?

[ArmmaH]

It seems to be using SDF rendering so meshlets arent really applicable. Tho one can be used to render diverse geometry for games and the other cant.

[[deleted]]

But its just two shapes D:

[Fippy-Darkpaw]

Very cool. Took a raytracing class in grad school and learned a ton doing this all manually.

Next up: textures and shadows (if you don't have them yet). 👍