Stack Overflow
Stack Overflow

Questions tagged [occlusion-culling]

44 questions
0
votes
0 answers

Is there any why to occluded object thats hidden behind the object

I still learning how to use OpenGL and I wanna ask if there are any ways to use occlusion culling the occluded the object behind an object (which is not visible to the camera). I had used the frustum culling for detecting the object that is not…
Stevie99
  • 1
  • 2
0
votes
1 answer

How can I selectively render VTK PolyData without deleting points or lines

I have a pipeline for rendering a PolyData. The PolyData consists of points and lines only (specifically no faces). I have normals for the points which would allow me to do some point based version of backface culling but I can't see how I can apply…
Dave Durbin
  • 3,562
  • 23
  • 33
0
votes
1 answer

In which space to do Visible Surface Determination and how?

The Visibility Problem could be solved by sorting polygons by depth (Painter's algorithm) and support with Newell's algorithm in cases where z extents overlap. Newell's algorithm is explained here and here. Point 3 and 4 involves comparing each…
Arve Waltin
  • 4,098
  • 1
  • 15
  • 12
0
votes
0 answers

Visibility queries on merged bounding boxes...is it possible?

I have a very large scene to render (approx > 10-20M polygons) , using three.js , with an acceptable framerate. So I am implementing some basic occlusion culling using a WebGL2 renderer . and here's my problem : I want to squeeze every performances…
Amine Bensalem
  • 362
  • 3
  • 15
0
votes
1 answer

Unity 5 occlusion culling with Outline Shader

I have a model of the brain that is using the "Outline Only" shader from the UnityWiki. I love the look aside from the opaque patches where the separate shapes overlap. Shown in link below. Example of what it looks like I have been looking into…
Sockness_Rogers
  • 1,693
  • 3
  • 12
  • 23
0
votes
1 answer

A wired occlusion culling phenomenon in unity3d, could you help me fix it?

I found a wire occlusion culling problem. Something in my view, but they acre culled. And give a back a black hole. They look like: In picture1, There is a floor mesh, but it is gone, when I open the occlusion culling, but when I shutdown it, it…
tim
  • 1,454
  • 1
  • 25
  • 45
0
votes
1 answer

Does MKMapView occlusion cull it's annotations?

I am trying to show thousands of potential pins (Annotations) to the user on the MKMapView. Does anyone know if the map is using occlusion culling to render only the visible annotations? This is for iOS 7+ using xCode 6.4
RagingDev
  • 1
  • 1
0
votes
1 answer

Cross Viewport oclussion culling

I'm currently working on a XNA project where I need to create a Picture in picture Overlay to displaying a 3D scene from multiple angles. currently I'm trying to use 2 viewports to do this. The main one fills whole screen and is working as desired.…
NewMario64
  • 65
  • 1
  • 7
0
votes
1 answer

how to remove occlusion from face image?

Any effective method to remove face occlusion? The effect is like the following figure: Any references for that?
tidy
  • 4,747
  • 9
  • 49
  • 89
0
votes
1 answer

Unity3D - Not rendering triangles within area

I have this issue where SIDES of perfectly aligned meshes, turn into black dots and lines at certain angles. The issue is caused by the SIDE of the mesh, being visible through the front of the mesh. As a result, it would be cool if i could do some…
Smileynator
  • 677
  • 8
  • 24
0
votes
1 answer

Occlusion culling for spinning sphere dataset

I am currently working on an assignment in which I have to implement a CPU-only rasterizer for sphere datasets. The datasets are static and therefore don´t change in runtime, even though the whole set can rotate in front of the camera. The idea now…
user2971044
  • 1
  • 1
0
votes
1 answer

Irrlicht ultra fast billboard rendering

I have to render a very large number of colored billboards in Irrlicht, but it's really slow. I use many BillboardSceneNodes: List voxels = new List(); for (int x = 0; x < 32; x++) for (int…
Giulio Zausa
  • 233
  • 4
  • 16
-1
votes
1 answer

Unity Frostrum Culling in top-down or isometric view

I've encountered an issue in Unity which prevents it from culling off-camera objects in top-down or isometric views due to shadow-casting. The directional light is diagonal, so any object outside the camera view in the direction from which the light…
tbkn23
  • 5,205
  • 8
  • 26
  • 46
1 2
3