# The big SDF thread

**URL:** <https://blenderartists.org/t/the-big-sdf-thread/1293075>\
**Category:** Latest News\
**Created:** [March 21, 2021, 6:45pm UTC](https://blenderartists.org/t/the-big-sdf-thread/1293075 "2021-03-21T18:45:08Z")\
**Posts on this page:** 20\
**Page:** 103

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**Author:** ![Metin\_Seven](https://blenderartists.org/user_avatar/blenderartists.org/metin_seven/32/1471846_2.png) [@Metin\_Seven](https://blenderartists.org/u/Metin_Seven)\
**Post date:** [July 29, 2026, 1:31pm UTC](https://blenderartists.org/t/the-big-sdf-thread/1293075/2070 "2026-07-29T13:31:49Z")

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@Minext_lost’s MathOPS custom SDF Blender build is about to be released. A Linux build is already available…

> **[GitHub - JardanX/blender-sdf: MathOPS Blender 5.1 Fork with custom Raymarcher...](https://github.com/JardanX/blender-sdf)**
>
> MathOPS Blender 5.1 Fork with custom Raymarcher and native integration of SDF as an object type

MathOPS will not be further developed though. The developer has started creating a new external SDF tool that will be connected to Blender with a bridge add-on.

Blender Artists MathOPS thread:

> [@\[WIP\] MathOPS- mathematical operations with sdf for hard surface Modelling](https://blenderartists.org/t/wip-mathops-mathematical-operations-with-sdf-for-hard-surface-modelling/1623857):
>
> [Screenshot 2025-12-19 113801] I’m starting a new thread to showcase what I’ve been working on over the past few months from researching what SDFs are to exploring their uses and everything in between. I’ve been using Blender for three years now, mostly focusing on hard surface modeling like guns and other assets. I’ve been wanting a tool that’s flexible and goes beyond topology, which is why SDFs …

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**Author:** ![Metin\_Seven](https://blenderartists.org/user_avatar/blenderartists.org/metin_seven/32/1471846_2.png) [@Metin\_Seven](https://blenderartists.org/u/Metin_Seven)\
**Post date:** [July 29, 2026, 6:27pm UTC](https://blenderartists.org/t/the-big-sdf-thread/1293075/2071 "2026-07-29T18:27:15Z")

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[Today’s little SDF exercise](https://blenderartists.org/t/mr-longneck/1648957), using Chisel. 😊

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**Author:** ![Metin\_Seven](https://blenderartists.org/user_avatar/blenderartists.org/metin_seven/32/1471846_2.png) [@Metin\_Seven](https://blenderartists.org/u/Metin_Seven)\
**Post date:** [July 30, 2026, 12:28pm UTC](https://blenderartists.org/t/the-big-sdf-thread/1293075/2072 "2026-07-30T12:28:31Z")

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As Chisel is a Blender add-on, you can also animate SDF scene elements. So I made a little build-up anim of [my giraffe](https://blenderartists.org/t/mr-longneck/1648957), rendered using Chisel’s ray-marching renderer. It’s not EEVEE or Cycles quality, more like viewport rendering, but being able to animate SDFs is fun.

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**Author:** ![Metin\_Seven](https://blenderartists.org/user_avatar/blenderartists.org/metin_seven/32/1471846_2.png) [@Metin\_Seven](https://blenderartists.org/u/Metin_Seven)\
**Post date:** [July 30, 2026, 5:44pm UTC](https://blenderartists.org/t/the-big-sdf-thread/1293075/2073 "2026-07-30T17:44:10Z")

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MathOPS is now available for Windows, MacOS and Linux…

MathOPS is an SDF-based custom Blender build.  
└ [MathOPS Github repository](https://github.com/JardanX/blender-sdf)  
└ [MathOPS thread on Blender Artists](https://blenderartists.org/t/wip-mathops-mathematical-operations-with-sdf-for-hard-surface-modelling/1623857)  
└ [MathOPS Discord](https://discord.gg/FMH2FnrZ)

📝 Note: MathOPS will not be further developed, but the developer has started creating a new stand-alone SDF tool that will be connected to Blender with a bridge add-on.

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**Author:** ![Metin\_Seven](https://blenderartists.org/user_avatar/blenderartists.org/metin_seven/32/1471846_2.png) [@Metin\_Seven](https://blenderartists.org/u/Metin_Seven)\
**Post date:** [August 1, 2026, 12:25pm UTC](https://blenderartists.org/t/the-big-sdf-thread/1293075/2074 "2026-08-01T12:25:37Z")

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Beta-testing [Chisel](https://blenderartists.org/t/chisel-sdf-modeling-for-blender/1633234) version 4.1. Some really powerful additions in there…

A “push” operator is now added (called Carve in Chisel, for naming consistency). This is me after testing it… 😃

 ![Screenshot 2026-08-01 at 13.51.00](https://blenderartists.org/uploads/default/original/4X/8/0/0/8008922444a13f06d29233855490dd80aa6c548d.png)

The eyes have been carved (pushed) into the head, including a surrounding margin, forming an automatic eye socket. 🙂

Chisel 4.1 will also include a Sweep modifier, allowing you to sweep any SDF primitive along a spline. A great addition, lifting Chisel up to MagicaCSG level…

 ![Screenshot 2026-08-01 at 14.06.42](https://blenderartists.org/uploads/default/original/4X/e/b/5/eb5450551086e62ee73fadde067c43da72c03f27.png)

Note: the wobbly outline of the swept profile spline is just a quick viewport approximation of the swept spline SDF outline. The swept spline SDF is perfectly smooth.

And Chisel 4.1 will include a Revolve modifier, allowing you to lathe any SDF primitive with an adjustable radius and axis. Also very powerful…

 ![Screenshot 2026-08-01 at 14.22.08](https://blenderartists.org/uploads/default/original/4X/e/7/a/e7a10479179e4b31dd1c008d376ef5c059e817d5.png)

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**Author:** ![Metin\_Seven](https://blenderartists.org/user_avatar/blenderartists.org/metin_seven/32/1471846_2.png) [@Metin\_Seven](https://blenderartists.org/u/Metin_Seven)\
**Post date:** [August 6, 2026, 6:39pm UTC](https://blenderartists.org/t/the-big-sdf-thread/1293075/2075 "2026-08-06T18:39:59Z")

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My latest Chisel model: [a retro Sci-Fi robot character](https://blenderartists.org/t/retro-style-sci-fi-robot-character/1649620). 🙂

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**Author:** ![Metin\_Seven](https://blenderartists.org/user_avatar/blenderartists.org/metin_seven/32/1471846_2.png) [@Metin\_Seven](https://blenderartists.org/u/Metin_Seven)\
**Post date:** [August 7, 2026, 6:24am UTC](https://blenderartists.org/t/the-big-sdf-thread/1293075/2076 "2026-08-07T06:24:51Z")

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For Houdini users: a new version of [SDFModeler / SDFM Modeler](https://github.com/handcraftedcc/SDFModeler), an open source SDF toolset for Houdini, has just been released.

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**Author:** ![AonoZan](https://blenderartists.org/user_avatar/blenderartists.org/aonozan/32/637370_2.png) [@AonoZan](https://blenderartists.org/u/AonoZan)\
**Post date:** [August 9, 2026, 10:33am UTC](https://blenderartists.org/t/the-big-sdf-thread/1293075/2077 "2026-08-09T10:33:13Z")

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I have got libfive working in Blender viewport with CUDA GPU rendering on linux. (Only schema code evaluating and rendering)  
You can check it here:

> **[GitHub - AonoZan/MPR\_viewport\_renderer: MPR Viewport Renderer is a custom render engine...](https://github.com/AonoZan/MPR_viewport_renderer)**
>
> MPR Viewport Renderer is a custom render engine add-on for Blender 5.0+ that integrates native implicit surface (SDF) rendering into Blender's 3D Viewport. It compiles Scheme S-expressions defining geometric math trees on the fly and renders them in real time using high-performance GPU / C++ native bindings.

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**Author:** ![Metin\_Seven](https://blenderartists.org/user_avatar/blenderartists.org/metin_seven/32/1471846_2.png) [@Metin\_Seven](https://blenderartists.org/u/Metin_Seven)\
**Post date:** [August 9, 2026, 2:56pm UTC](https://blenderartists.org/t/the-big-sdf-thread/1293075/2078 "2026-08-09T14:56:29Z")

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Nice! Added to the initial post. 👍

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**Author:** ![Metin\_Seven](https://blenderartists.org/user_avatar/blenderartists.org/metin_seven/32/1471846_2.png) [@Metin\_Seven](https://blenderartists.org/u/Metin_Seven)\
**Post date:** [August 13, 2026, 6:54pm UTC](https://blenderartists.org/t/the-big-sdf-thread/1293075/2079 "2026-08-13T18:54:45Z")

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Currently testing the latest beta version of the [Chisel](https://blenderartists.org/t/chisel-sdf-modeling-for-blender/1633234) SDF 3D modeling add-on for Blender.

There’s now an FFD lattice deformer for SDF shapes. Powerful stuff again. 👌

Blender Artists only accepts videos up to 5 MB, so here’s my Mastodon post with a little demo:

> **[Metin Seven (@metin@graphics.social)](https://graphics.social/@metin/117089698327910765)**
>
> Attached: 1 image
> 
> @blenderartists@mastodon.art Currently testing the latest beta version of the Chisel SDF 3D modeling add-on for Blender.
> 
> There's now an FFD lattice deformer for SDF shapes. Powerful stuff again. 👌
> 
> \#blender #Blender3D #B3D #3D...

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**Author:** ![cometnc](https://blenderartists.org/letter_avatar_proxy/v4/letter/c/9fc29f/32.png) [@cometnc](https://blenderartists.org/u/cometnc)\
**Post date:** [August 14, 2026, 12:54am UTC](https://blenderartists.org/t/the-big-sdf-thread/1293075/2080 "2026-08-14T00:54:56Z")

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Whoa! That’s really cool, lattice in Chisel and the new lattice and Blender bridge in Nomad. Exciting times!

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**Author:** ![Renzatic](https://blenderartists.org/user_avatar/blenderartists.org/renzatic/32/1433665_2.png) [@Renzatic](https://blenderartists.org/u/Renzatic)\
**Post date:** [August 14, 2026, 1:17am UTC](https://blenderartists.org/t/the-big-sdf-thread/1293075/2081 "2026-08-14T01:17:27Z")

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And lattices in Nomad, too.

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**Author:** ![Metin\_Seven](https://blenderartists.org/user_avatar/blenderartists.org/metin_seven/32/1471846_2.png) [@Metin\_Seven](https://blenderartists.org/u/Metin_Seven)\
**Post date:** [August 15, 2026, 3:06pm UTC](https://blenderartists.org/t/the-big-sdf-thread/1293075/2082 "2026-08-15T15:06:06Z")

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[MagicaCSG](https://ephtracy.github.io/index.html?page=magicacsg) now has a cutting tool, like [Chisel](https://blenderartists.org/t/chisel-sdf-modeling-for-blender/1633234)’s Bisect tool…

![GIF_knife_tool](https://blenderartists.org/uploads/default/original/4X/4/a/0/4a0fc793f91174daede6bfc442ebb24284b2e4eb.gif)

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**Author:** ![vectorian](https://blenderartists.org/letter_avatar_proxy/v4/letter/v/a183cd/32.png) [@vectorian](https://blenderartists.org/u/vectorian)\
**Post date:** [August 15, 2026, 3:31pm UTC](https://blenderartists.org/t/the-big-sdf-thread/1293075/2083 "2026-08-15T15:31:18Z")

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You beat me to the news a bit there. 🙂  
I just read the email about it.

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**Author:** ![Metin\_Seven](https://blenderartists.org/user_avatar/blenderartists.org/metin_seven/32/1471846_2.png) [@Metin\_Seven](https://blenderartists.org/u/Metin_Seven)\
**Post date:** [August 15, 2026, 7:26pm UTC](https://blenderartists.org/t/the-big-sdf-thread/1293075/2084 "2026-08-15T19:26:53Z")

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Today’s quick SDF 3D doodle: “Pikaaaa!” 😊

Modeled using the [Chisel](https://blenderartists.org/t/chisel-sdf-modeling-for-blender/1633234) SDF 3D add-on for Blender.  
Rendered using both EEVEE and Cycles (mixed in post).

 ![metin-seven_stylized-3d-illustrator-cartoon-character-designer_whimsical-pikachu-pokemon](https://blenderartists.org/uploads/default/original/4X/2/e/7/2e7507edf804694ced769efb307018d9d13b9809.png)

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**Author:** ![3dioot](https://blenderartists.org/user_avatar/blenderartists.org/3dioot/32/740542_2.png) [@3dioot](https://blenderartists.org/u/3dioot)\
**Post date:** [August 19, 2026, 9:00am UTC](https://blenderartists.org/t/the-big-sdf-thread/1293075/2085 "2026-08-19T09:00:26Z")

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@Metin_Seven It feels at this point the only thing I could want out of Chisel that it doesn’t have yet is baking out animated SDF’s to alembic (or some other streaming mesh format).

I don’t expect that process to be fast but even taken that into account its something you need in certain scenario’s and opens a lot of creative possiblities as well. (like with your giraffe example)

For all the ways Blender is lacking when it comes to SDF “modeling”, the fact you can animate with them is actually unique among all SDF modelers (whether extensions or stand alone).

Funnily enough, the native metaballs are still the best to achieve those effects when it comes to performance versus functionality. 😆 (although they obviously lack all the finer options of actual SDF modeling tools)

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**Author:** ![Metin\_Seven](https://blenderartists.org/user_avatar/blenderartists.org/metin_seven/32/1471846_2.png) [@Metin\_Seven](https://blenderartists.org/u/Metin_Seven)\
**Post date:** [August 20, 2026, 6:31pm UTC](https://blenderartists.org/t/the-big-sdf-thread/1293075/2086 "2026-08-20T18:31:04Z")

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Yeah, the ability to animate SDFs is pretty cool. 👍

Baking animated SDFs would probably require a [Keymesh](https://extensions.blender.org/add-ons/keymesh/)-like stop-motion mesh-per-frame approach. I guess that would quickly take up a lot of resources, unless animated SDF shapes could maybe be exported as volumetric data, like the VDB format.

I wonder what @rrtk thinks about this.

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**Author:** ![CaffeineMachine](https://blenderartists.org/user_avatar/blenderartists.org/caffeinemachine/32/1491432_2.png) [@CaffeineMachine](https://blenderartists.org/u/CaffeineMachine)\
**Post date:** [August 23, 2026, 5:52pm UTC](https://blenderartists.org/t/the-big-sdf-thread/1293075/2087 "2026-08-23T17:52:15Z")

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Chisel is amazing! The shapes you can make are mind-blowing, and at first (I’m still approaching ‘at first’), the modeling approach is hard to wrap your head around but you see the possibilities quickly. Shape something, then use a (primative) as a constraint to fill that shape and apply rounding/blending modifiers to it? Oof…this is modeling inside of (the movies) Limitlessness + Interstellar.

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**Author:** ![CarlosSilva](https://blenderartists.org/user_avatar/blenderartists.org/carlossilva/32/564737_2.png) [@CarlosSilva](https://blenderartists.org/u/CarlosSilva)\
**Post date:** [August 24, 2026, 1:16pm UTC](https://blenderartists.org/t/the-big-sdf-thread/1293075/2088 "2026-08-24T13:16:47Z")

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Hi guys, an interesting addon for modeling using the remesh+smooth method.  
[Smooth Operator — SDF Voxel Remesher for Blender 5.1+](https://pedrotools.gumroad.com/l/smoothoperator)

 ![image](https://blenderartists.org/uploads/default/original/4X/a/0/b/a0b05e08ea45cca6418a2a69f8f450bdf936ac2a.png)

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**Author:** ![Metin\_Seven](https://blenderartists.org/user_avatar/blenderartists.org/metin_seven/32/1471846_2.png) [@Metin\_Seven](https://blenderartists.org/u/Metin_Seven)\
**Post date:** [August 28, 2026, 12:30pm UTC](https://blenderartists.org/t/the-big-sdf-thread/1293075/2089 "2026-08-28T12:30:49Z")

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Added [Unit Gradient Fields](https://www.blakecourter.com/ugfs/) (SDF-related) to the Reference ➔ Miscellaneous section.

[Previous page](https://blenderartists.org/t/the-big-sdf-thread/1293075.md?page=102)

[Next page](https://blenderartists.org/t/the-big-sdf-thread/1293075.md?page=104)
