Curious effect. When I select shaded or ghosted or wireframe, no problems. But when I select Rendered, I get instead what looks like Arctic. Or maybe Arctic & Rendered simultaneously.
How did I get into this, and how do I get out of it? Thank you for your insights. Michael
Should add that over the past two days I have had some Win 10 updates and that I use Rhino 7 under Win 10.
I will ask just to be sure, but did you apply any material to the model? cause artic and render without material look pretty similar
A J probably has the answer.
But if you updated to Rhino 7 SR 30 recently you may have the version which has display issues. A subsequent release fixed the problem. Download and install the latest version.
Just reset the rendered mode in âoptions-openglâ, that should do the trick.
Thank you for your helpful counsel. I will download the latest Rhino 7.
There are no materials assigned in this model so this could also be the issue. Re the OpenGPL display options, here are two screen grabs to indicate the set-up now in place. The second snapshot is just a scrolldown from the first.
Holo, by âreset the rendered modeâ do you mean that I should restore the defaults for this whole page? Or is there a different procedure for resetting the rendered mode?
Thank you for your insights. Michael
Yes, restore is what I meant. And make sure the objects have materials to them and not only object color.
Continuing to study this. It is a problem with Rhino, not with a particular file. In a fresh file I made a model of a steel box, reproduced here.
Note that this one specifies a material and a color. For whatever reason, the object did not change from white to steel in color. It is still arctic white.
I have not yet restored-to-default the OpenGL setting for Render. I am going to export the existing setting first as a backup.
A little lost here, to be candid. I started in Rhino 4.0, then progressed to Rhino 5. In those earlier versions of Rhino, you could simply click Rendered and get a finished looking object in grey. No materials nor colors necessary.
Is the requirement for materials new in Rhino 7? I bought 6 but rarely used it. I was preserving tSplines in 5.0. So now I am playing catch-up in 7.0.
I have an image backup of the whole system from 2 weeks ago, so if the arctic/render issue doesnât yield to logic, I will restore the whole system and see if it works normally. Meanwhile, will keep pecking away at it. Thank you for your time and help. Michael
Default color for Render mode in Rhino 5 and later is white.
It appears that some other default Render mode settings (lighting and similar) have changed so that objects in Rhino 6 and Rhino 7 appear brighter than before. Hence the white appearance rather than grey.
@mcg Try the HM2_V6_RenderSpeed display mode. Screen captures below are with default settings:
HM2_V6_RenderSpeed display mode:
Render display mode:
HM2_V6_RenderSpeed is a display mode that is installed by HoloMark2, so you might not have it.
If thatâs the case then feel free to use this one:
HM2_RenderSpeed.ini (10.8 KB)
For what it is worth the material is not assigned to your cube. You should have visual indication in the metal thumbnail that it is assigned (triangles in corners), but those are missingâŚ
To ensure your material is assigned select the object in the viewport, then right-click on the material thumbnail and choose âAssign to selected objectsâ
Thank you.
Still a page behind on this, but progressing.
@Nathan, here is the corrected image. The object is stainless. Thank you for pointing out the problem.
I have now updated the program from Rhino 7 28 to Rhino 7 29. I also ameliorated the white on white Arctic effect by changing the render background from white to a grey gradient. I made a backup of the render settings and performed a restore-to-default of these settings, but this had no visible effect. Next I will try the RenderSpeed display mode.
Just by pushing buttons, I noticed I can get back to a fairly normal looking render (to my eye) by using Shade.
Last step will be to create an image backup for May 16 and then restore the computer to May 5 and see if I can get some sense of what went wrong.
Thank you for your insights. Michael
Can you open this file and show us what your perspective view in Rendered mode looks like? It should look like this:
rendered test.3dm (6.2 MB)
With the settings I can see on screen look like a something to expect:
This is what I see with a similarly oriented box with said settings in Rendered mode
You have to understand that reflective materials like metals will look good only when there is a proper environment to reflect. Additionally Rendered mode doesnât do inter-object reflectionsâŚ
@holo, here is a screen grab from the file you posted. Michael
Beginning to understand the problem a little better. Let me first describe the nature of the files I am trying to bring back from the Arctic. They are all mechanical drawings in B&W that will be supplied as raw material to a patent artist. No color. Limited texture.
It seems Rhino has two render methods, or inherent renderers, on offer.
As I noted above, I habitually use the one-click render. This is now I believe regarded as the âLegacyâ renderer. It automatically supplies and uses default materials, so it is not necessary to select specific materials nor colors.
The second, more serious and involved rendering method enables the selection of appropriate materials, textures, colors, etc.
The choice of rendering methods is shown as the first entry at the top of the render specification shown here:
What I would like to do is copy this spec sheet to a file and use it to replace the specs in the more recent Arctic files. I think this could solve the Arctic Render problem. If I canât extract the render specs as a file, I can copy it by hand, but.
Thank you for your insights. Michael
I notice that the render file noted above specifies the properties of the current Model. It does not, apparently, specify the general properties of the ârenderedâ display option on the pull down menu. In other words it applies to a specific object, not as a Rhino default.
These default specifications for various display options, including âRendered,â are apparently specified in files identified as display options just above the OpenGL properties. Not clear to me how to edit these files, however.
Hi, sorry for the late reply, we had national day here and had to celebrate a bit 
I sent you the file to see if you had problems with the display engine, you hardware or the display modes, and since you got basically the same image as I did we can rule that out.
Rhino 6 and 7 has a different rendered mode than Rhino 5 as it supports environment lighting, causing the âarctic lookâ and since the default material in Rhino, that is applied to the default layers and thus the object on those layers (since objects have âmaterial by layerâ as default setting) you will get that all-white look when you switch to rendered display mode.
To sum that up: Default in V7 is white ojbjects in a soft lit white environment.
So whatâs left is then to show you how this is done 
In the file I sent you I made three spheres and did the following:
1- default material on sphere one, nothing done
2- a basic plastic material is made and applied to sphere two where the color is changed to red and the reflections are dulled a bit, and
3- a metal material is made and applied to sphere three with the color set to âgoldâ
4- I then created a âcustomâ environment by importing one from Rhinos library to light the scene and give reflections
5- Sun is turned on to give a directional light that casts shadows
You can type MATERIALS to open the material dialogbox and see the materials in the file, add new ones or import default ones from Rhinoâs library.
You can type ENVIRONMENTS to open the environment tab and
you can type SUN to set the sun to a given time for a given location or adjust the hight and rotation manually.
(And you can add lights, like a directional light (like the sun, but free standing) or a rectangular light to cast soft shadows, or a spotligth. All of these lights can have different colors and strengths)
You can look at these tutorials on rendering to learn more.
I made a new file for you to investigate.
Here rectangular lights with different shapes, colors and intensities are used, and the environment is reduced to prevent overlighting, and then RAYTRACED mode is used to render the scene with reflections and shadows. The rendered view for this scene doesnât look good since environment is reduced, but thatâs just how Rhino is since it doesnât use advanced realtime features like screenspacereflection or cubemapping etc.
Raytraced:
OpenGL:
(The car is not made by me, itâs just a simple mesh model downloaded years ago that I use for size when working on projects) ((Here is one I made: WIP SubD Dino 246 - #37 by Holo)
CAR in studio.3dm (1.6 MB)
Many thanks for your time and patience. This is a huge help. Michael
