I’m having a lot of custom geometry meshes. How can I use occlusion culling for the scene? I’ve elaborated a bit with the renderer to set different settings for occluder-functions but debugging the scene is says “0 Occluders” and there are not fewer triangles even though I know some meshes are completely hidden by others.
Am I missing something? Or how can I achieve occlusion culling for my scene?
You pick a few large static models in the scene and set them as occluders in the editor, or in the code. Don’t make all objects occludes, keep your occlusion-pass light and simple. If occluder model has too many polys, it is better to make a proxy mesh and put inside it.
Ah I see. But do I set a node or a model as occluder? And do you have an example how to do that (in C++)? (I can’t find any related function for Node/Model in the docs)
Ok, so large poly meshes might be better to create a extra mesh “boundingbox”-style to use a occluder?
The occluder flag is set on
Drawable
components - like the
StaticModel
or
AnimatedModel
- using the
SetOccluder
method.
A
Model
is not a component, it is a
Resource
.
ok, can I set a occluders to billboardsets as well? In order to occlude billboards?
I’m honestly not sure. All
Drawable
s are set to be occludees by default. But occlusion inclusion seems to require the
Drawable::AddTriangles
function to be called. Which the
BillboardSet
doesn’t do. But I might be overlooking something.