We spent a full session systematically profiling O3DE’s multi-camera streaming pipeline, testing eight different optimization approaches, and pinpointed the exact bottleneck: 18 ms of fixed overhead in the AttachmentReadback scope system. Here’s what we tried, what we measured, and what it means for the engine.
After O3DE’s 18 ms frame-graph readback made 30 FPS streaming impossible, we tried Godot. It got us there — eventually. This is the full path from 105 FPS on nothing to 50 FPS per camera with three live RTP streams, including every wrong turn and every underdocumented Godot behavior we hit on the way.
Exploring whether O3DE can replace Unity as the render engine for a drone simulation that streams multiple 1080p camera feeds via GStreamer. From first scaffold to three live RenderToTexture pipelines in a single session.
Getting PX4’s Simulation-In-Hardware (SIH) module running on a production flight controller — discovering the firmware doesn’t include SIH, building a custom PX4 with flash-trimming, fan-out routing serial MAVLink to both the simulator and ground station, and connecting it all to the Unity visualization pipeline.
How I replaced a proprietary terrain bundle with a fully procedural environment generated from open-source data — hundreds of buildings with window textures from OpenStreetMap, terrain-hugging roads, satellite-driven vegetation, and multiple ground and air entities — all built at runtime in a headless Unity Docker simulation.
A practical guide to finding, downloading, and fusing satellite imagery and elevation data for an air-gapped Unity simulation. Covers every free tile provider (ESRI, Bing, Google), every free DTM source (SRTM, Copernicus, Mapzen), how to stitch thousands of tiles into Unity-ready textures, and the dead ends along the way.
A detailed technical walkthrough of profiling and optimizing a headless Unity simulation from 21 to 25 FPS — covering NVENC GPU encoding, batch camera rendering, GPU instancing, static batching, and the failed URP migration. Every measurement, every dead end, every lesson.
How I replaced flat brown terrain and solid-color sky in a headless Unity 6 Docker simulation with real satellite imagery, SRTM topography, and a custom panoramic skybox — all fully air-gapped, no runtime network dependency. Includes NVENC GPU encoding, custom shaders, and every dead end along the way.
A detailed account of fixing terrain rendering in a headless Unity 6 Docker simulation — from magenta buildings and gray streaming cameras to textured villages with working RTSP feeds. Covers cross-platform asset bundle shader mismatches, runtime material conversion, texture recovery from broken materials, and every dead end along the way.
A detailed technical account of containerizing a Unity 2019.4 drone simulation with GPU-accelerated rendering, dual RTSP camera streaming via FFmpeg/mediamtx, and MAVLink drone control — including every obstacle encountered and how it was solved.