About
Amplify Impostors (c) Amplify Creations, Lda. All rights reserved.
Amplify Impostors is a component-based impostor creation tool for Unity 2021.3 LTS and up
Redistribution of Amplify Impostors is frowned upon. If you want to share the
software, please refer others to the official product page:
http://amplify.pt/unity/amplify-impostors/
Description
Amplify Impostors is a small but powerful tool that allows the creation of different
types of Impostors, which are substitutes of complex high polycount objects made from flat
and simple polygons, that render a fake version of the original object (hence the name).
Much like traditional sprites, they usually consist of a single flat quad polygon or simple
polygonal shapes and, like classic billboards, always face the camera. Think of them as a
camera facing cardboard version of the object you want to render. The common purpose of
using such technique is to be able to represent far distant objects with a very low
polycount, for instance, trees, bushes, rocks, ruins, buildings, props, etc.
Features
* 3 different pre-baked Impostor types
- Spherical
- Octahedron
- HemiOctahedron
* Realtime rendering
- Scriptable Render Pipeline (HDRP and URP)
- Standard/Legacy Forward and Deferred rendering
- Dynamic lights and shadows
- Depth writing for object intersections
- Global Illumination
- GPU instancing
- Dithering cross fade
* Custom Shape Editor
Supported Platforms
* All platforms
Minimum Requirements
Unity Unity 2021.3 LTS
Quick Guide
1) (OPTIONAL) If using any SRP import the respective package found at "AmplifyImpostors > Plugins > EditorResources > Shaders"
2) Select a game object in the scene or a prefab in your project
3) In the inspector window search for and add the "Amplify Impostor" component
4) Press "Bake Impostor" and select where you want to save the impostor files
Documentation
Please refer to the following website for an up-to-date online manual:
http://wiki.amplify.pt/index.php?title=Unity_Products:Amplify_Impostors/Manual
Feedback
To file error reports, questions or suggestions, you may use
our feedback form online:
http://amplify.pt/contact
Or contact us directly:
For general inquiries - info@amplify.pt
For technical support - support@amplify.pt (customers only)
References
Octahedron Impostors by Ryan Brucks, https://shaderbits.com/blog/octahedral-impostors/
Chapter 21. True Impostors by Eric Risser, https://developer.nvidia.com/gpugems/GPUGems3/gpugems3_ch21.html
Real-time Realistic Rendering and Lighting of Forests by Eric Bruneton, Fabrice Neyret, https://hal.inria.fr/hal-00650120
