Stack Overflow
Stack Overflow

Questions tagged [culling]

133 questions
1
vote
1 answer

culling instanced meshes without geometry shader

Whats an effective way to cull instanced meshes (f.e. 2000 trees, each with ~ 17 triangles) without using the geometry shader ? Unfortunately my software supports only OpenGL ES 3.0, so have to cull in the vertex shader or somewhere else. Another…
Meldryt
  • 99
  • 1
  • 9
1
vote
2 answers

C# XNA - Render(?) 3D object when off/half off screen. (Culling?)

Objects that are really large like, lets say a game map will outright not show up in XNA if their origin point is not on the screen. I can't find a bloody thing on this. I have looked into culling and attempted to add it in a few forms to the…
Remm
  • 677
  • 8
  • 24
1
vote
1 answer

Wireframe rendering with depth-buffer in deferred rendering

I have a small OpenGL app for some scientific visualization with deferred rendering pipeline. I have got 2 passes: geometric pass, where I render textures with positions, normals, albedo, segmentation, e.t.c.; and lighting pass, where I just map…
Denis
  • 719
  • 2
  • 8
  • 23
1
vote
1 answer

DirectX 11 front face culling does not cull front faces in shadow map

I try to implement shadow mapping (CSM) on DirectX 11 and succeeded to get a prototype working. Right now I have drawn the geometry using back face culling in the shadow map pass but I now want to switch to front face culling to further reduce…
Busy Beaver
  • 71
  • 5
1
vote
1 answer

Frustum culling rectangles problem

I am trying to implement frustum culling in my OpenGL 2d game. The only kind of geometric objects in my game at this point are rectangles, so I thought this would be pretty easy, but I am getting unexpected results. I have setup a symmetrical…
Jacob
  • 23
  • 5
1
vote
2 answers

OpenGL: Quads seemingly not culled properly

I have built a simple scene like the following: The problem is, the blue shape is lower than the red one but somehow bleeds through. It looks proper when I rotate it like the following: From what I searched this could be related to the order of…
SenselessCoder
  • 1,139
  • 12
  • 27
1
vote
1 answer

Babylon.js disable frustum culling for SolidParticleSystem?

I'm attempting some simple data viz of a point cloud. My scene contains nothing but a 40K particle SolidParticleSystem and a small ground plane used for a visual reference when moving the camera. Every time world 0,0,0 goes out of the view frustum…
amonroejj
  • 573
  • 4
  • 16
1
vote
1 answer

Efficient masking of an np.array to cull locations of bad pixels (Python 2.7)

I want to remove the locations of bad pixels in my coordinate- and disparity-arrays. Therefore I wrote some code but it feels a bit circuitous and a little too long for the task. The main idea behind the code is that I want all array entries removed…
Miau
  • 301
  • 1
  • 3
  • 12
1
vote
1 answer

Disable face culling in WPF

I'm starting experimenting with WPF 3D rendering, and one of the first problems I'm facing, is how to disable face culling. I know how to do that in DirectX and OpenGL, but I can't find a way to do that in WPF. Here is my ViewPort markup. The model…
NinjaCross
  • 784
  • 2
  • 9
  • 20
1
vote
1 answer

Determine vertex winding (for backface culling) in JavaFX and Point3D

I'm in the process of displaying j3d GeometryArrays as combined TriangularMeshes in JavaFX. I know the GeometryArrays I am receiving are TriangleStripArrays, and the order allows me to build the correct faces and display the meshes in the…
R. Melville
  • 11
  • 1
1
vote
1 answer

Frustum culling decreases framerate in debug but improves it in release

I'm making a tilebased game in SFML and decided to implement a simple bounding-box frustum culling to only draw the tiles that are in the viewport of the camera. The result was a success, as it tripled my framerate! However, there was a cache. When…
LethalJam
  • 13
  • 4
1
vote
1 answer

Libgdx culling between modelinstances decals

I can't figure out, how I to tell libgdx to draw my green spheres behind my transparent decal. Here is an example picture of my problem: The decal creation: first two params are width and height, last flag is wether transparent or…
unreal
  • 11
  • 3
1
vote
1 answer

OpenTK incorrect culling of objects

I recently made an application with C# and OpenGL using OpenTK. I've integrated a frustum culling system in order to improve performance, but for some reasons, objects aren't culled correctly. What I mean is that instead of showing all visibles…
ThePatchou
  • 21
  • 3
1
vote
1 answer

Culling & Scripts

I'm no programming expert, and this just came to mind so I figured what better place to ask it. If a GameObject (using Unity here) is culled, but it has a script on it that is set to create particle effects and instantiate objects...and those…
David Rosen III
  • 117
  • 2
  • 10
1
vote
1 answer

DirectX meshes not being displayed properly after switching view and projection matrices

In my program, the meshes were being displayed properly, but when I change the device.transform.view and the device.transform.projection matrices from the left handed to the right handed system, the meshes are not displayed properly anymore, i.e the…
user326075
  • 49
  • 1
  • 4
1 2 3
…
8 9