Hi, I have simple question regarding materials in render preview via grasshopper (custom preview component). How can I display breps or meshes with a reflective or shiny material? If I just create custom material in grasshopper, it only changes color.

I asked it for months with no luck. The best at the moment is to use a Material Name from Rhino [image] Custom Preview Shinyness when using create material (BUG ?) Grasshopper Hello I just installed the SR4 version, I still have the same behavior. When I bake in Rhino Th…

You can only create very basic materials through the components, back when they were written things like reflection weren’t supported in the display at all so there was no point to them. If you want the advanced stuff, right now you have to make a material in Rhino and reference it by name.

Just updated to current candidate release and now I see custom created materials by typing name. Yipiii!!! Any time soon we could also see curves in render preview?

[image] Petras_Vestartas: Any time soon we could also see curves in render preview? Yes, probably the next release candidate. Previews are back to the way they used to be, except for Custom Preview components. They now either draw previews in non-render viewports, or they add meshes+materials…

Is it also possible to display these materials in render preview through: //Return a BoundingBox that contains all the geometry you are about to draw? public override BoundingBox ClippingBox { get { return BoundingBox.Empty; } } //Draw all meshes in this method. public override void DrawVi…

It must be, because that’s how Custom Preview works. DisplayPipeline.DrawMeshShaded() takes a Rhino.Display.DisplayMaterial as an argument. If you have a RenderMaterial instead of a DisplayMaterial, then you can generate the latter from the former by using the SimulateMaterial() method: var dmat …

It does not show up in render preview. What I did wrong between these lines: private void RunScript(Mesh x, ref object A) { bbox.Union(x.GetBoundingBox(false)); Material material = new Material(); material.ReflectionColor = Color.Gray; material.DiffuseColor = Color.Gray…

Creating a basic material and then simulating it isn’t going to add any functionality.

Also note you never assign the mesh variable. private void RunScript(Mesh x, ref object A) { if (x == null) return; _mesh = x; _box = x.GetBoundingBox(false); Material material = new Material(); material.ReflectionColor = Color.Gray; material.DiffuseColor = Color.Gray…

Rhino 6 Grasshopper render preview materials

Grasshopper

laurent_delrieu (Laurent Delrieu) May 17, 2018, 8:56pm 2

I asked it for months with no luck. The best at the moment is to use a Material Name from Rhino

Custom preview: "Data conversion failed from Goo to Shader"

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Rhino 6 Grasshopper render preview materials

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