Tangent line and interactive blendcrv line not displaying properly

[vcruzdesigns (Vince)]

Has this ever happened to anyone? I’ve searched the forum and couldn’t find anything.

The BlendCrv line doesn’t display properly in shaded display mode with shadows on, but it works with shadows off.

43s video example:

I’m using this display mode:

Share your custom viewport modes here

My custom default shaded vp-mode: [image] Shaded Gray Clay.ini (14.9 KB) Environment map matcap: [Gray Clay] Objects retain their colours: [image] Ghosted version: [image] Ghosted Gray Clay.ini (14.1 KB) (uses the same matcap as the shaded version) I think the ghosted is a little dark though so if anyone has any adjustment recommendations, lmk! EDIT: Changing links to display modes files that won’t replace the defaults on import

Any big brains got some suggestions/advice?

[pascal (Pascal Golay)]

Hi Vince - I do not see that yet here with just shadows on in shaded, but I’ll try your ShadedGray and see.
With your mode I do see the problem…

-Pascal

[vcruzdesigns (Vince)]

Hi Pascal, I think I figured it out but I’d just like to double check before I report my findings. Could you send me a default shaded.ini file to test?

I got one from Bobi:

Significant drop in performance while in "Shaded" view

I have no idea how to export Display.ini , but I was able to export individual viewport modes. The funny thing is that my custom display mode called “Bobi 1” is a derivative of the default “Shaded” mode, but I changed it to show rendering material in the viewport. Shaded.ini (13.8 KB) Bobi 1.ini (13.8 KB) I also should mention that the backface material while in “Shaded” mode appears in a slightly different colour than the front face material, despite the fact that in my setting both sides sh…

But I’d just like to check with a confirmed default shaded.ini file, in case this one is different.
(I would press “Restore defaults” to do the check but I don’t know if it will reset all of my settings)

Never mind, I bit the bullet and it only restored my shaded view lol

I’ll reply with my findings in a bit.

[vcruzdesigns (Vince)]

Okay, I’ve figured it out and I do think it’s a bug:

I forgot to show it in the video but I tested with ExtendDynamic (to see if any other curve-altering commands exhibit the same behaviour) and that displays fine.

[pascal (Pascal Golay)]

Got it - thanks for the detailed testing.

From what I can see so far, this does not happen in V8/WIP
-Pascal

[vcruzdesigns (Vince)]

No problem, I was moreso testing thoroughly because I didn’t want to have to wait for a patch in case I could fix it myself.

Any chance it could be fixed for R7? I enjoy the modern look that thick-lines and shadows-on gives the modelling experience in Rhino.

In any case, thanks for looking into it for me!

[pascal (Pascal Golay)]

Hi Vince - I will put it on the pile, I do not have high hopes for this being fixed in V7 but one never knows.

-Pascal

[vcruzdesigns (Vince)]

Some more relevant observations: it’s possibly related to lighting differences b/w Ambient Occlusion and point light sources.

If I’m not mistaken, the skylight in the render lighting settings is the same as the Ambient Occlusion lighting method option in the display mode settings, whereas the sun is a different type of light.

Quick demo: