The occlusion tag has no wiki summary.
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iSGL3D Occlusion Culling
I was testing a cool 3D Scene Graph Library called iSGL3D. Since I found some functions called alpha culling for displaying partly hidden objects (making the ones in front transparent). I was ...
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0answers
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How to occlude lights in Unity3D?
First off, I own Unity Pro.
I've been looking in to occluding lights when they aren't being viewed for a while now to improve performance. The main methods I ran in to were using BecameVisible() and ...
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3answers
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In modern AAA games with open environment and lot of static content (eg : crysis), how is occlusion culling performed?
Two ideas i have in mind :
1) Scene is rendered to a invisible buffer, using low resolution and low polygon count models (or even using only bounding volumes like cubes or spheres). The buffer is ...
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0answers
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How does pixel shading work for ambient occlusion volumes?
I'm trying to understand the ambient occlusion technique described here, but I've trouble comprehending what exactly is the pixel shader doing.
Is the pixel shader invoked on points that belong to ...
2
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1answer
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Extracting Frustum Planes (Hartmann & Gribbs method)
I have been grappling with the Hartmann/Gribbs method of extracting the Frustum planes for some time now, with little success. There doesn't appear to be a "definitive" topic or tutorial which ...
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1answer
937 views
Not getting desired results with SSAO implementation
After having implemented deferred rendering, I tried my luck with a SSAO implementation using this Tutorial. Unfortunately, I'm not getting anything that looks like SSAO, you can see my result below.
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1answer
231 views
Steps to take before trying to implement screen space ambient occlusion
I very recently started learning modern OpenGL. I have implemented a wavefront file loader and a basic ADS shading model. At some point I'd like to implement screen space ambient occlusion. I tried ...
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2answers
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Unity Occlusion Portals: What and How?
(Here I eat my words on Meta about posting Unity questions on Unity Answers... since that site is less responsive than this one.)
Unity provides cell-based Occlusion Culling (via Umbra, I believe). ...
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2answers
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Partial recalculation of visibility on a 2D uniform grid
Problem
Imagine that we have a 2D uniform grid of dimensions N x N. For this grid we have also pre-computed a visibility look-up table, e.g. with DDA, which answers the boolean query is cell X visible ...
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2answers
895 views
Dealing with occlusion in an isometric sandbox game
Imagine a 3D sandbox game like Minecraft with third-person isometric graphics. If the camera only moves in two dimensions, and doesn't rotate, then a large portion of the world will always be occluded ...
