Questions tagged [raymarching]
The raymarching tag has no usage guidance.
10
questions
0
votes
0
answers
48
views
Optimal data structure for managing AABBs to minimize collision check queries
Say I have thousands of 2D Axis-Aligned Bounding Boxes (AABBs), and a single point. I'm checking whether a point is inside a certain AABB before performing some expensive logic.
...
- 1
1
vote
1
answer
143
views
How to avoid banding with raymarched fog?
I have a raymarching shader for fog.
It works well but It creates artifacts in the form of banding:
I understand the problem: The step size is too large and the sample points above the ground are not ...
- 641
0
votes
0
answers
43
views
How are objects represented in raymarching shaders
How does one represent geometry in raymarching shader? Say I wanted to pass a tree of SDF primitive shaders. My current idea is to pass texture containing their positions as rgb and type as alpha ...
1
vote
2
answers
623
views
Raymarching signed distance function resulting in holes on surface - step size required?
I've been learning about raymarching and signed distance functions, and I implemented a raymarching fragment shader in Unity. It works fine for geometric shapes such as cubes and spheres, but when I ...
- 157
0
votes
1
answer
49
views
PostFX2 Custom Effect's Y position has wrong offset ONLY in GAME camera. Scene camera is OK
I implemented raymarching in a full-screen Post FX2 custom effect.
Let's say I'm rendering a SDF sphere at world coordinates 0, 0, 0. Everything is fine in the scene camera -- if I rotate the camera ...
2
votes
1
answer
1k
views
Raymarching in Unity's new SRP & Post Processing V2
Hello wonderful wizards of the shader world!
I've seen a few tutorials featuring the use of Raymarching via the older OnRenderImage function, however, that is no ...
0
votes
0
answers
971
views
How can I convert 3D mesh to SDF?
Previously, I found an useful article that explained how to convert 3d mesh to SDF easily.
I want our artists to be able to easily convert from polygonal data to SDFs with little-to-no effort.
...
- 8,085
1
vote
1
answer
2k
views
Rendering clouds similar to Sky: Light Awaits?
I'm interested in adding clouds to my game, with a style similar to those in Sky: Light Awaits
You can see them in motion in these videos:
(Starts at 26:00)
https://www.youtube.com/watch?v=...
4
votes
1
answer
2k
views
How can I make a collision detection on marching objects?
In a Raymarching project I need to have a collision detection for my Signed Distance Field shapes.
I find a project that Implemented simple collision detection.but I need a more stable Physic when ...
- 8,085
53
votes
1
answer
39k
views
How do Raymarch shaders work?
I have been looking at shaders found here shadertoy.com and most of the cool ones have noise and raymarch in common. I do not understand the source code at all but I really want to. How do these ...
- 2,049