159
questions
-2
votes
2
answers
76
views
Frustum Culling breaks when looking up or down [closed]
The title explains it all, but to summarize. When the camera's direction is not pointing down or up, Frustum culling works fine (I checked the amount of draw calls etc thru console).
BUT it is not ...
- 27
0
votes
0
answers
34
views
Incorrect Frustum Culling behavior
I've written a C# script and a Compute Shader that should cull the instances that are not visible by the camera. The instances are getting culled but with some weird behavior - sometimes not getting ...
- 21
0
votes
1
answer
43
views
Create a tight frustum around a 3D model bounding volume
Tight frustum
I intend to create a tight frustum around a 3D model:
I have these variables:
Inputs:
3D model bounding box or bounding sphere or bounding volume.
To be determined:
Eye distance and ...
- 7,747
0
votes
1
answer
26
views
Does the camera transform in Unity invert directions at the end?
I want the 8 corners of the camera frustum and I have this:
Vector3 nearTopLeft = center_near + (up * (height_near / 2)) - (right * (width_near / 2));
Vector3 nearTopRight = center_near + (up *...
- 9
0
votes
1
answer
68
views
ThreeJS Object3D.frustumCulled
ThreeJS objects have a check to see if the object is in the camera area - Object3D.frustumCulled.
How to get the "Object3D.frustumCulled" check result?
- 1
0
votes
1
answer
93
views
frustum culling not filtering out bboxes correctly
I'm writing some frustum culling code ( once again ), and it's mostly working, but for some reason, some boxes are showing as intersecting the frustum when they really aren't.
I setup a 10x10 grid of ...
- 979
0
votes
0
answers
32
views
How far to move a point to get it out of the view frustum?
I'm creating a view frustum from a combo matrix (function at the end of the question for reference).
What I want to do is, I have an object at xyz... and a direction vector abc, both of these in world ...
- 672
0
votes
1
answer
134
views
How change Level of Detail Attribute of objects to boundingbox which are in frustum of moving camera?
I am trying implement frustum culling in maya , where I am turning Level of Detail to boundingbox [cmds.setAttr(object + '.overrideLevelOfDetail',0)] if they are not in the frustum of the selected ...
- 80
0
votes
1
answer
758
views
"Screen position out of view frustum" errors followed by "Assertion failed on expression: 'std::abs(det) > FLT_MIN'" - Unity 3d
So in my game you are a sphere rolling down ramps, but if you go too fast and crash into a ledge the game freezes and the console gets spammed with the first error in the title followed by the second ...
1
vote
0
answers
259
views
How to implement correct cube frustum culling
I'm trying to implement frustum culling for my directx application. Each geometry in my application is surrounded by a bounding volume, which I'm trying to use to determine whether it's inside the ...
- 380
1
vote
1
answer
102
views
Flutter canvas. How to draw frustum or add a frustum to a basic graphic?
I know how to draw a basic graphics,
canvas.drawCircle();
canvas.drawPolygon();
...
Is there any way to draw a frustum make it to 3d? Like those:
- 183
1
vote
1
answer
353
views
Check if line segment or triangle intersects a frustum
I have a frustum made of six planes, normals all pointing inwards. I can check if a point is inside the frustum with this function:
char ClassifyPoint(float x, float y, float z, char thePlane)
{
...
- 672
1
vote
1
answer
192
views
How to determine whether a line segment is partially contained in (intersects) a frustum in THREE.js?
I need to be able to determine whether the straight line between two points (segment), crosses the space inside a frustum (intersects the frustum). I've looked into the APIs offered by THREE.js and ...
- 897
1
vote
0
answers
539
views
Most efficient way to determine if a cube intersects a frustum
I'm looking for a fast, efficient (even if sometimes false positive) way to determine if a cube intersects a frustum.
I've been using a brute force test of just seeing if all cube points are behind ...
- 672
0
votes
1
answer
360
views
OpenGL (LWJGL 3) culling terrain vertices/triangles that are not in the view frustum
I am trying to implement frustum culling in my 3D Game currently and it has worked efficiently with the entities because they have a bounding box (AABB) and its easier to check a box against the ...
- 351