Unity3d: Create realistic scene in less than 10 minutes (2023 update)
Projection mapping, a simple and basic technique ported to Unity.
Updated version for Unity 2023. Shaders included. Video Updated.
It is basic VFX trick: most 3D compositing pipelines commonly use it. I tried to replicate it step by step inside Unity quickly.
It has a lot of problems but can help to sketch scenes quickly. The technique can be used for cut scenes, intros and simple fake 3D backgrounds. It’s just an experiment.
image author: Steven_J
Basic Steps set Unity projector and assign your image as texture start scene reconstruction with basic geometry (planes) adjust projector to fit perspective add camera movement & effects (particles, lights, etc.)
The most important thing is to match the perspective and geometry, which could be tricky. For your first try choose an image which can help you a little. Image with nice and visible perspective edges, with tiles on a floor, etc. Avoid images with complicated foreground or many objects.
You can download my sample project at the end of this page. Open the scene and check the Projector configuration.