Compute Shaders – Bronson Zgeb

Posted in Compute Shaders, Graphics, Unity Programming

Pixelate Filter in HDRP using Compute Shaders

In this article, we’ll complete the trifecta and port our Pixelate image filter to HDRP. If you haven’t yet, I recommend reading the first post first to understand the full

Posted in Compute Shaders, Graphics, Unity Programming

Pixelate Filter in URP using Compute Shaders

This article will use the pixelate image filter from the previous post but in URP, the Universal Render Pipeline. We’ll set up a ScriptableRendererFeature and ScriptableRenderPass to run the

Posted in Compute Shaders, Graphics, Unity Programming

Pixelate filter: post-processing in a compute shader

In this article, we explore post-processing by writing a pixelate filter using a compute shader. How does post-processing work? At its core, Post-processing, aka image processing or image filters,

Posted in Compute Shaders, Unity Programming

A Simple GPU-based Drawing App in Unity

This week I’m escaping the complicated world of voxels for a bit to do something lighter. We’re building a simple GPU-based drawing app. What does that mean? A drawing app that runs

Posted in Compute Shaders, Graphics, Unity Programming

Volumetric Heat Diffusion for Automatic Mesh Skinning

I wanted to use the GPU-based mesh voxelizer we previously wrote to implement an automatic skinning algorithm. We’ll use a heat diffusion algorithm to radiate heat through the voxels to tie

Posted in Compute Shaders, Graphics, Unity Programming

GPU Mesh Voxelizer Part 5: Filling the inner voxels

In this article, we’ll fill the inside voxels of our voxelized mesh. Doing this will complete our GPU-based mesh voxelizer. To do this, we’ll implement the Möller-Trumbore algorithm for

Posted in Compute Shaders, Graphics, Unity Programming

GPU Mesh Voxelizer Part 4: Mesh Translation and Rotation

In this article, we continue developing our GPU-based mesh voxelizer. The previous posts in the series are available here: part1, part2, and part3. Previously our model had to be

Posted in Compute Shaders, Graphics, Unity Programming

GPU Mesh Voxelizer Part 3: Render tons of voxels with DrawMeshInstancedIndirect

In this article, we render all the voxels from our voxelization process. If you haven’t read the previous parts, you can find part 1 here and part 2 here. We’ll generate a

Posted in Compute Shaders, Graphics, Unity Programming

GPU Mesh Voxelizer Part 2: Triangle / Voxel intersection

In this article, we’ll continue porting our mesh voxelizer to the GPU. If you haven’t read them already, you can read the first two parts here and here. We’ll build

Posted in Compute Shaders, Graphics, Unity Programming

GPU Mesh Voxelizer Part 1

In this article, we’ll start porting my naive mesh voxelizer to a multithreaded mesh voxelizer that runs on the GPU through Compute Shaders. First, we’ll set up the compute