Messages

1

[Max] I need help! / Re: Mesh turn transparent in View port

« on: 2023-03-22, 17:10:47 »

Hey Maru, thanks! Sorry for not answering sooner.
Someone broke into our office a few weeks ago and stole some of our equipment, but we're back with renders again.

Using 3dsmax 2023 with corona 9.

Tried with alt X and no luck, objects still show transparent. i think it has something to do with vrscan materials.
I was able to replicate the problem with the tea pot, but only using scanned mats (file atached below).
Also have other file with some parts from our production renders, where it happens to most materials. In that file we also used vrscan mats but only on "carpaint and carbon".(170 mb file). How can i send you this file?

Thanks!

2

[Max] I need help! / Re: Mesh turn transparent in View port

« on: 2023-03-01, 17:21:58 »

Yep it goes transparent, as it was made of "glass" and if the mesh overlaps with another one that's also transparent it completely disappears only way to see it is hovering over it and hoping it shows the outline.
a few examples.

I have to use the clay Mode to be able to see the model

It does not affect the render in any way, only the viewport.

3

[Max] I need help! / Mesh turn transparent in View port

« on: 2023-02-28, 18:18:57 »

Hey it's me again, I've been having this problem every time i assign a corona material to a mesh it goes transparent in the 3d view, only the outline is visible, I tried to ignore it as the parts render fine but now my scene is so big that its hard to distinguish what im looking at, tried inverting the normals but no luck.

its probably something simple but haven't been able to solve it.


It happens with all materials from the corona Library or even using physical materials with presets.
I've attached a photo to show what i mean.

4

[Max] I need help! / Re: Bad geometry only in render

« on: 2023-02-09, 22:06:10 »

Thanks! That worked out! It fixed my cad surfaces, But it introduced noise in the relfections on native polygon mesh.
setting values between 1 and 0 fix the reflections but the pases take more time to render and end up more noisy.

Is it possible to apply the shadow terminator in only certain areas?
Or the best would just render it with and without and combine in post?

5

[Max] I need help! / Bad geometry only in render

« on: 2023-02-09, 18:33:52 »

Hey, total noob here with corona and 3ds max.
I'm working for an automotive aftermarket part manufacturer, we recently switched to corona after seeing some impressive renders.

We used to used keyshot to do quick the renders and when approved we then built the molds, made the parts and then a photoshoot for a catalog.
My boss wants to skip all that, as he is convinced it's best to go digital and have better renders, check the market interest and then if there is a demand build the product.

So one of the big challenges we're facing right now is making the models work for rendering. We use a combination of 3d scans, Cad surfaces, and polygonal models. 3ds max doesn't really like Cad surface data.

We are importing the Cad as STP and letting 3ds max do the conversion to mesh, however it leaves un-welded vertex and some low resolution areas. TurboSmooth or mesh smooth don't really work here. The solution we came up was to import every component as a separate object, instead of an assembly. That way, we can control the poly density while importing the parts and making it more or less dense as needed. This method leaves an Ok looking mesh on the 3d viewport. But when rendered in corona, it shows some artifacts.

What would be the best approach to fix this or the better practices to work in these scenarios?

On the attached pics you can see the comparison between the render and the 3d view