Who is responsible for Rh8 Custom Render Mesh?


Fiat Barilla 2007

Concerns About Rhino 8’s Mesh Render Quality Options

When I started using Rhino 1 beta, I was amazed at the render-mesh refinement and triangulation capabilities. It was clean, elegant, fast, and smooth. In contrast, converting surfaces to meshes using Rhino’s tools was far from ideal and never matched the precision and optimization of the render meshes. I kept hoping that one day a Rhino Guru developer would refine the surface-to-mesh conversion process matching render mesh elegance, but years went by without that dream coming true. Then, a fear started to grow within me: what if they destroy Rhino by taking that feature out altogether?

That day came when I opened Rhino 8. My worst fear had come true: I could no longer extract that beautiful jewel of a mesh that made Rhino so special.

Fortunately for us, it is not like that !! :stuck_out_tongue_closed_eyes:

Hello Rhino community,

I’ve noticed a significant change in Rhino 8 regarding the mesh render quality settings compared to Rhino 7. Specifically, the new mesh render options slider seem to have a negative impact on performance and usability, which is causing issues when importing meshes for UV mapping or Substance painting for game assets.

It turns out that you can configure “Smooth and Slow” modes in Rhino8 if you dig deeper into the detailed custom control settings. They should probably be exposed as defaults.

Jagged and fast
Rh8: Default Render mesh: 4 meshes 887 vertices 764 polygons
Rh7: Default Render mesh: 4 meshes 887 vertices 764 polygons

Smooth and slow
Rh8: Custom Render mesh: 4 meshes 1761 vertices 1531 polygons
Rh7: Smooth Render mesh: 4 meshes 1761 vertices 1531 polygons

Suggestions and Questions

  1. Could we bring back in front the “Smooth and slow” render mesh quality setting in Rhino 8 so that it is not hidden?
  2. If you choose “Smooth and slow,” the menu changes to Detailed Controls.

Not sure what I’m missing, but _ExtractRenderMesh has existed for a long, long time.

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Maybe the results were not meant to be exactly the same for V7 and V8? Or do I just not understand what you are seeing in V8 compared to V7?
-Jakob

Hello,
I’m sorry if I was not clear enough. My numbers are correct. I put these numbers here to demonstrate to users (like me) who assume that Rh8 differs significantly from Rh7. And it does not.

My purpose here is to expose " Smooth and slow" directly as it was before in Rh7.

YES, But at first impression, Rh8 made me mad because I thought Smooth and slow were missing, and it is from where I use _ExtractRenderMesh.

“Smooth and slow” setup is that beautiful jewel of a mesh that made Rhino so special

Often, users do not have enough time to explore all the changes in the UI, especially if they are hidden, and we are going very fast.
At first glance, the new UI seems to lack the “Smooth and slow” option, which is my default.

Hope is more clear now.
Thx

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If I recall correctly the GUI was cleaned up to better serve a larger group of users. For your case you can always set up a template with exactly the meshing settings as you prefer for default.

Hi @AlanMattano

I believe I see what you’re hunting for. I think we can certainly add the presets back to the simple panel similar to how Rhino 7 exposed the basic radio control selection. I’ve made a ticket for this and will get this implemented in an upcoming 8.x service release. You can follow the tickets progress here. https://mcneel.myjetbrains.com/youtrack/issue/RH-84108/Options-Mesh-bring-back-Jagged-and-Faster-Smooth-and-Slower

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