Project Description
ISOCE is an Image Space Occlusion Culling Engine optimized to perform occlusion culling in CPU. If you have a densely occluded scene (e.g. urban, indoor scene) you can use this module in you 3D project to speed up the rendering.
ISOCE does not depend on any Graphics API ( OpenGL, DirectX) since it is implemented in CPU and it is executed before sending the objects to the rendering pipeline.
ISOCE is DLL module programmed in C++, optimized using SSE intrinsics and is based on Hierarchical Occlusion Maps.
Overview of how it works:
- Select and generate the best occluders of your scene. Calculate their conservative axis aligned boxes.
- In every frame project the occluder´s conservative axis aligned boxes into screen space.
- Call ISOCE DLL module and send the occluder´s visible faces for rasterization.
- For every visible object you want to test for occlusion send the object´s 2D bounding box and depth. ISOCE will determine if your object is occluded or it is potentially visible.
How to use the module:
Visit
Documentation page
This engine is based on the paper called:
Techniques for Image Space Occlusion Culling Engine
Want to help to improve it or have any comments?
Please contact me at lebarba at gmail.com
Authors:
Leandro Barbagallo lebarba at gmail.com
Matias Leone
leonematias at gmail.com