Questions tagged [raymarching]
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36 questions
0 votes
0 answers
40 views
Sparse volume rendering on hardware?
I need to do real-time volume rendering of sparse data (medical and mining), when previously I've only done it using dense data (with straightforward ray marching through a 3D texture in the shader). ...
- 101
0 votes
1 answer
86 views
Ray direction in VR (Vision Pro)
I am trying to calculate the ray direction for each pixel in a post processing shader on the Vision Pro for raymarching. I am using the inverse of the projection matrix created from the tangents ...
- 101
2 votes
1 answer
295 views
Raymarching Refraction
I'm sorry if this question is imprecise, or violates any guidelines. This is my first post on Stack Exchange, so any feedback is welcome. I am working on a ray-marcher in my spare time, which you can ...
- 21
2 votes
0 answers
81 views
Volumetric Renders become brighter as the focal length changes
Before we start, I have to warn yall, this program was written in VEX. Which is a programming language for Houdini. So it is a language within a 3D software. Its not really meant for this sort of ...
- 121
0 votes
2 answers
206 views
Porting from DXR/HLSL to Vulkan Ray Tracing Extension/GLSL
I am working on the port of a demo from DXR to Vulkan Ray Tracing extension using GLSL. In DXR/HLSL space, there are RayTMin() and RayTCurrent() functions to retrieve the starting and the current end ...
- 319
1 vote
1 answer
616 views
Ray Tracing With Continuous Refraction
I want to write a simple ray tracing(?) algorithm in WebGL with continuous refraction. So my idea was, what if you have a material whose optical density varies continuously, if this is physically ...
- 127
2 votes
1 answer
330 views
Is there a better, more elegant way of translating/rotating my camera in my 3d raymarched world or am I stuck with trigonometry?
What I am trying to achieve So I'm a fractal enthusiast and decided to build a 2D/3D fractal generator in WebGL using raymarching, with Typescript as scripting language. I've been a C#/Typescript dev ...
4 votes
1 answer
253 views
Why does UV tiling affect performance in volumetric ray marching?
I am building a volumetric ray marching shader in HLSL in Unreal Engine, based on Ryan Brucks’ work: https://shaderbits.com/blog/creating-volumetric-ray-marcher I am trying to add some additional ...
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