scenekit

Does enybody know how to create water material like in badger example from Apple? There is a "geotherm_01" object in "scene.scn" and this object got materials "_1_terrasses_orange_water" and "_1_terrasses_eau" which creates water with slow animation that looks realistic. I've tried to repeat same materials in my testing project but can't get the same result. This water effect was achieved using shader modifiers as shown in the SceneKit Scene Editor within Xcode. The most important material property is the normal map that will be used to affect lighting in order to simulate wavelets on a

According to Apple's documentation you can use NSColor, NSImage and CALayer to provide a texture to a SCNMaterialProperty. SCNMaterialProperty I am however wondering if there is a way to provide an existing OpenGL texture, which has been created with glGenTextures and rendered into separately. I can of course read the buffer of the texture, setup an NSImage, and provide that one to the SCNMaterialProperty; but for performance reasons that is obviously not optimal. It would make sense to implement the above by overriding the shader program(s) of the material I guess, but the documentation for

I am trying to apply an .mtl file texture on .obj 3d model via SceneKit & Model I/0. My code below works fine when I try to apply .jpg of a texture on it: let url = NSBundle.mainBundle().URLForResource("chair", withExtension: "obj") let asset = MDLAsset(URL: NSURL(string:url)!) guard let object = asset.objectAtIndex(0) as? MDLMesh else { //fatalError("Failed to get mesh from asset.") return } if shouldApplyTexture == true { var textureFileName = "chair.mtl" // Create a material from the various textures let scatteringFunction = MDLScatteringFunction() let material = MDLMaterial(name:

We try to make viewer for models in Xcode and use SceneKit to render model. If we add COLLADA (.dae) file to Xcode, it transforms the model using scntool to c3d format (found this on the Internet). But we want to load models in runtime (we download them from server to iOS device). How can we transform .dae to this format not from Mac OS? Our server running Ubuntu, we can transform model and send it already converted to iOS devices. Thanks a lot! you can run scntool manually but you'll need a machine running OS X to do that. The compressed format used by SceneKit on iOS is not documented and

ARKit 2.0 updates many intrinsic (and extrinsic) parameters of the ARCamera from frame to frame. I'd like to know if it also takes Radial Lens Distortion into consideration (like in AVCameraCalibrationData class that ARKit doesn't use), and fix the video frames' distortion appropriately ( distort / undistort operations) for back iPhone and iPad cameras? var intrinsics: simd_float3x3 { get } As we all know, the Radial Lens Distortion greatly affects the 6 DOF pose estimation accuracy when we place undistorted 3D objects in distorted by a lens real world scene. var lensDistortionLookupTable:

I'm looking for just a working Metal shader that works in SceneKit with SCNProgram. Can someone show me the correct method declarations/how to hook this up? let program = SCNProgram() program.vertexFunctionName = "myVertex" program.fragmentFunctionName = "myFragment" material.program = program and then the shader //MyShader.metal vertex something myVertex(something) { return something; } fragment float4 myFragment(something) { return something } I'm just looking for the most basic example please. I clipped out all the 'unnecessary' stuff, this is about as basic as it gets and pretty much what