Questions tagged [scenekit]
SceneKit is an OS X and iOS framework for building apps and games that use 3D graphics.
28
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How can I scale the SCNPhysicsShape when scaling a SCNNode?
I wrote a script that would match all models to one size, no matter the original size of the source model. So now these models fit precisely in the scene, but unfortunately when I add ...
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392
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Why does my 3d model become invisible as I move the camera away?
I'm trying to load a 3d model from Mixamo:
// let scene = SCNScene(named: "art.scnassets/ship.scn")!
let scene = SCNScene(named: "art.scnassets/Ch45_nonPBR.dae")!
...
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369
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Draw textured circle / 2D shape in SceneKit
I have the following code to create a circle Path and a SCNShape from this path. orbit_gradient.png is a horizontal 1px high image that represents a gradient.
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75
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Excluding some scene elements from bloom effect
I've enabled HDR and bloom effects in my SceneKit app, but I don't want some of the elements in my scene to bloom.
For example, the lighter spots on the skybox are currently glowing.
Is there some ...
- 141
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467
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SceneKit - Creating a sense of scale
I'm experimenting with 3D using SceneKit on iOS. I'm trying to create a galaxy but would appreciate some guidance on the following things:
I'm having a hard time working out how to make the galaxy ...
- 141
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607
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SceneKit flickering with Ambient and Omnidirectional lights
I have a project where I have a sphere with a png texture that represents a planet (or a moon in the videos I'm attaching).
Wrapped around that sphere I have a hexasphere (implemented using the ...
- 225
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0
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69
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Affect of timeStep on PhysicsBodies in SceneKit
In SceneKit, I had a problem on collision of two dynamic spheres, when the one strikes to another with fast speed, it was passing through inside of it. After i have reduced physicsWorld.timeStep value ...
- 111
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2
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177
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Impact of increasing physics simulation rate
I am working one Mini Golf game development using Scenekit (iOS). To fix one of the problem with Scenekit, I have to increase the physics simulation rate by 4 times.
Questions:
What is the impact ...
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136
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Collision physics error
I am working on a game developed using Scenekit (iOS). I am facing some strange issues with collision physics.
I have added one 3D table (with a hole at its center) to the scene. I am setting physics ...
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0
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231
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Using a MTLTexture as the environment map of a SCNScene
I want to set a MTLTexture object as the environment map of a scene, as it seems to be possible according to the documentation. I can set the environment map to be ...
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2k
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Get the up vector of the camera in ARKit
I'm trying to get the four vectors that make up the boundaries of the frustum in ARKit, and the solution I came up with is as follows:
Find the field of view angles of the camera
Then find the ...
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1k
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Fixed camera rotate to follow character
I have a camera in a fixed position in the middle of a field, and I would like to rotate the camera to follow the character as it moves around. There is no point lower than the camera, but I would ...
- 105
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1
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576
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Process for converting unity asset to scenekit scene/resource
Has anyone successfully figured out a method for converting a unity3d asset to a 3d SceneKit model/scene? I imagine it would require exporting the asset into some third party file type, and then ...
- 123
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561
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1
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1k
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The object can't rotate around z axis in SceneKit
I am doing an app with a functionality like a 3D compass, it can point to the direction where I want. The code is
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976
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Load large .obj file
I am working with the 3D model and I am using the Scene Kit for rendering and Model I/O for loading the obj file. It works perfectly fine for the small size of obj. But now I have 250MB of file and ...
- 121
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269
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Map individual images to the surface of a sphere
I know this is a FAQ but I don't know the terms to search on. I even saw something like this with a blue globe, but now I can't find it any more!
I'm trying to make a UV map to apply to a sphere (in ...
- 111
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2
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3k
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How can I create a "wireframe" texture for a sphere in SceneKit?
I've been struggling to figure this out. I would like to have a sphere in SceneKit that looks like this:
I think the easiest way would be to create a mostly transparent texture with the wireframe ...
- 173
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4k
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How do I pixelate a scene with SceneKit and Metal, in Swift?
I managed to get pixelation working by using the OpenGLES2 rendering API, and a CIFilter. But it was way too slow, so I want to use the Metal API and just have a very simple filter that pixelates ...
- 173
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0
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539
views
Failed to pass uniform in Metal shader modifier
I'm trying to write a simple shader able to pass the color to be used for drawing in the fragment shader, through a uniform. I load the shader modifier and pass the uniform:
...
- 469
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2
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2k
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How to add a bump map in scene kit?
I'm trying to draw an Earth, as I've found the textures in this site: http://planetpixelemporium.com/earth.html
I loaded the diffuse, specular and bump maps:
...
- 469
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2k
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Is it possible to use Metal and SceneKit at the same time?
All the tutorials that I've found online speak about using Metal alone, without any other supporting library. But I don't understand if it's possible to create a SceneKit game and then use a Metal ...
- 469
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7k
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Why is SCNNode.rotation property a four dimensional vector?
I don't understand why SCNNode's rotation property is a SCNVector4 instead of a SCNVector3. The documentation states that:
The four-component rotation vector specifies the direction of the rotation ...
- 469
-1
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1
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393
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SceneKit – White layer covering my tube
I have a simple tube node in my scene that isn't displaying properly.
When I rotate it to face the camera, more than half of it is covered by some invisible sheet. When I rotate the tube enough, it ...
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109
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Ball movement simulation
I'm doing a little demo with scene kit and i want to simulate the rotation of a ball on a table. How can i achieve this?
This is the scene that i prepared:
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3
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405
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How to fill in crevices on a height map
I am a very experienced iOS Developer, but I am beginning my very first foray into 3D graphics (specifically with SceneKit). I'm trying to model a planet, and I have it working with a height map ...
- 174
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0
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581
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Render cylinder tube along 3D Path
I'm working on a roller coaster game, and I have computed a function that represents the path of the track in the 3D space. Since the track will be tubular and will be dynamically generated(as opposed ...
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1
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1k
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problem with SCNTransaction in Scene Kit
I'm trying to move an object over a period of ten seconds from y coordinate 0 to y coordinate 10. the object is created at y coordinate 0. The problem is when the animation starts, the object pops ...
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