+++
title = "GPU-Driven Point Cloud Renderer"
description = "TUM — 140M+ points at ~100 FPS"
date = "2024-01-01"
period = "2024"
tags = ["C++", "Vulkan", "GLSL"]
categories = ["programming"]
+++

Implemented a real-time GPU-driven renderer for large point clouds (140M+ points at ~100 FPS) using a custom 5-stage compute shader pipeline in Vulkan, based on Schütz et al. (2021, 2022).

Created a software rasterization pipeline using atomic uint64 depth-color packing and compute shaders, enabling fine-grained depth testing without a hardware depth buffer.

Implemented batch-based frustum culling, Morton-code spatial sorting, and screen-coverage LOD selection via 10-bit quantized position precision. Used Vulkan subgroup extensions for warp-level optimizations.