Questions tagged [scnprogram]

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Which are the right Matrix Values to use in a metal shader passed by a SCNProgram to get a correct chrome like reflection

I am working on an App, that should render a chrome-style reflective sphere-like object inside a skybox (using a six faced cube map). I am doing this in Swift using Scenekit with different approaches. Everything is fine and perfectly reflected (see…
ZAY
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SCNProgram read from depth buffer

I am investigating some advanced rendering in Scenekit, and what SCNTechnique and SCNProgram can be used for. I would like to implement a multi-pass render like so: First; render the full scene using the in-built PBR shader, Second; render a single…
Nick
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SCNProgram Vertex Shader – retrieve node clip space coordinate

I'm fairly new to Shader Development and currently working on a SCNProgram to replace the rendering of a plane geometry. Within the programs vertex shader I'd like to access the position (or basically anchor position) point of the node/mesh as a…
arthurschiller
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Odd border line on SCNPlane when alpha is set to 0

I have an odd behaviour on the borders of SCNPlane, I trust any geometry would have that, which looks like similar to SceneKit - Remove stitching line in edges borders I set transparency via SCNProgram and in fragment I run float alphaBloom(float2…
czane
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SceneKit SCNProgram for a Billboard Shader in Metal

I'm looking for an example of a billboard texture shader that I can use with SceneKit. I have a landscape of tiny red dots that I need to render. The dots all need to face the camera head-on. Using SceneKit, I've managed to render the landscape's…
Mark Bridges
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