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Subdivision Surfaces SubD


MJonathan
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In this other video one modeler in Pixar explain why use subdivision Surfaces AND he shows an example with toy story environment.

SubD Surfaces is other type of entity used for preview, the subdivisions are not destructive.

 

If Pilway want to have new users using modeling room, developers need to provide this workflow because It is used in most of the industries in real production.

Live smooth is not the answer, because It creates an sculpt object instead of work with the same object, it's slow and the feedback is not in realtime, you can't choose the subdivision algorithm.

For standard workflows developers should provide the necessary tools to the artist. This is one of them that is missing in the modeling room.

Please don't reinvent the wheel for this standard workflows. You can find the same workflows in other 3d modeling softwares.

Here are more documentación about subdivision Surfaces workflow. 

http://wiki.polycount.com/wiki/Subdivision_Surface_Modeling

 

https://download.autodesk.com/us/maya/2009help/index.html?url=Subdivision_surfaces_overview_What_are_subdivision_surfaces_.htm,topicNumber=d0e248732

 

https://download.autodesk.com/us/support/files/subds.pdf

 

https://graphics.pixar.com/library/Geri/paper.pdf

 

https://rmanwiki-26.pixar.com/space/REN26/19661421/Subdivision+Surfaces

 

https://rmanwiki-26.pixar.com/space/RFM26/21037087/Subdivision+Surfaces+in+Maya

Edited by MJonathan
I've added more links
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See, please video part-2

Smart Hybrid uses sub division when created from Lov Poly Mesh.

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Smart Hybrid is probably not quite what our designers wanted.

image.png

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14 minutes ago, Gorbatovsky said:

See, please video part-2

Smart Hybrid uses sub division when created from Lov Poly Mesh.

Amazing!! This is pretty similar because I notice that you are using subd! I've added a video one top with a Pixar modeler explaing how Pixar uses SubD. 

Now that you have a lot of experience with smart hybrid, I'm sure that with these other subd workflow implemented 3dcoat will give us more flexibility.

Can you share the link of Part 2? 

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See, please next video

 

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59 minutes ago, MJonathan said:

Can you share the link of Part 2? 

I want to combine 2 parts of the video and publish it after the release in 2025.

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Thanks for the videos! It will be a great update!

I made this fast modeling using subd, it takes me 5 minutes. I hope this can be implemented in 3dcoat, as you can see I'm switching all the time to see the low poly and edit it in subd mode. There is an intermediate view mode that is the cage, where you can see both low poly/ subd. If this is implemented, I could start a youtube series about how to modeling for animation and vfx using 3dcoat.
 image.thumb.gif.76c04ca572f9812d4295c6dbf9c87abe.gif

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17 hours ago, MJonathan said:

I hope this can be implemented in 3dcoat,

In Smart Hybrid Subdivision is used only in the initial stage when transforming faces into surfaces based on the Catmull Clark algorithm.

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Yes! I noticed the subd object in your video and Smart Hybrid looks pretty well, I will need to test it to give me an idea of how it will work.

In this post I'm suggesting implement the SubD like in maya/3dsMax/Blender/Modo/C4D. In all this packages there is only ONE object (low poly/subd is the same mesh).
To explain it as a developer:
We have an array of vertices in a determined position. But when we press 3 the array of vertices move to their new position defined by the subdivision algorithm (it can be Catmull Clark) and a surface is calculated. If I press 1, the vertices go back to their original position (low mesh).

In the post I added links with Papers (presented in Siggraph some of them) to give to the Pilway team more clarity about my feature request. If it is not clear, please tell me to try to create videos in different DCC packages to show you this missing (in 3dCoat) standard workflow.

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I found this 3dcoat oficial tutorials! And I notice that in the min 4:54 he is preview with SubD and go back to low poly! He Is switching múltiple times. Can someone explaing me how is he doing that? Is what I want to do with this post.

Or he Is faking SubD using subdivision + ctrl+Z? 

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13 hours ago, MJonathan said:

Or he Is faking SubD using subdivision + ctrl+Z?

That's right, hotkey for Subdivide + ctrl+Z. 

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Thanks Oleg! I'm going to use this faked technique instead of live smooth.

If in the video they needed preview the subdivision Is because it's an essential feature that they need implement correctly.

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1 hour ago, MJonathan said:

Thanks Oleg! I'm going to use this faked technique instead of live smooth.

If in the video they needed preview the subdivision Is because it's an essential feature that they need implement correctly.

Smart Hybrid would be good for rendering a smoother look.

image.png

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I'm not sure how to use smart hybrid with polygon modeling! Can you create a practical tutorial like in still life or ship tutorials? I think those series are better than the tutorials showing the isolated tools

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1 hour ago, MJonathan said:

I'm not sure how to use smart hybrid with polygon modeling! Can you create a practical tutorial like in still life or ship tutorials? I think those series are better than the tutorials showing the isolated tools

Lessons are definitely needed. I hope the developers hear us.

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