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microsoft / mixed-reality-extension-sdk

The Mixed Reality Extension SDK enables developers to build 3D world extensions for AltspaceVR, using Node.JS.
MIT License
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ability to control shader parameters of existing object? (feature request) #738

Open djzielin opened 3 years ago

djzielin commented 3 years ago

Might be nice to allow control of parameters of advanced shaders. That way can just send one piece of data, and have big graphical changes.

GoogolHz commented 3 years ago

There is a hackish way to do this: An MRE could manipulate colors and positions of elements in special layer that also includes a camera that culls all other layers, and only sees this special layer. The camera renders to a render texture that is referenced in the shader. The shader can 'walk through' (analyse) the texture and modify its values based on what it finds: THink of it this way: The mre may have a UI 'slider' that also moves the x position of an MRE element in ~layer20, and camera renders this change to a texture, the shader reads the x position of the element representing the modified slider, and this drives a property of the shader.