The difference in efficiency between SDF 3D and polygonal 3D. 😁

And I've got file compression turned on in Blender, otherwise the file would be even bigger. πŸ˜…

#SDFModeler #SDF #3D #3DModeling #3DRendering #CGI #graphics #editor #app #apps #tools #software #tech #technology #apple #Mac #macOS #iOS #iPhone #iPad #linux #windows #tip #tips #FreeSoftware #free #FOSS #OpenSource #Blender #Blender3D #B3D

@metin wow !!
@nico @metin huge difference, can you explain what SDF is in terms a simpleton like me can understand? looks useful for the demoscene...

@dm319 @nico SDF actually originated from the demoscene. πŸ˜ƒπŸ‘ It's essentially math describing a shape based on the distance between points in shader space. It can be 2D or 3D. E.g. a sphere is sqrt(xΒ²+yΒ²+zΒ²)-r . To visualize the mathematical shapes, a method like ray-marching is used, comparable with voxelization.

More can be read here:

https://blenderartists.org/t/the-big-sdf-thread/1293075

#math #mathematics #SDF #SDFModeler #3D #3DModeling #3DRendering #CGI #graphics #editor #app #apps #tools #software #tech #technology

The big SDF thread

πŸ“… Latest edits ( recent additions are marked with πŸ†• )… March 26 ─ Reorganized the SDF 3D modeling in Blender section. March 22 ─ Added Unity Ray Marching and Cone Marching in Three.js to the Reference βž” Miscellaneous section. March 14 ─ Added A Recursive Algorithm to Render Signed Distance Fields to the Reference βž” Miscellaneous section. β„Ή SDF info SDF stands for Signed Distance Fields, a volume-oriented 3D modeling method that offers more creative freedom ...

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@metin Could you post a wire shot of the geo, I suppose high.
@metin Blender that is πŸ˜‰

@mbt3d πŸ‘ Here you go. It's decadently high-poly. Cycles has no problems with that, so there was no need for decimation. πŸ™‚

The polygon structure that's generated from the SDF volumes is comparable to Blender's OpenVDB Remesh: smoothed voxelization.

#blender #Blender3D #B3D #3D #SDFModeler #SDF

@metin Wow! That is insane, thanks Metin!
@mbt3d πŸ™‚πŸ‘ You can control the shape detail inside SDF Modeler, which also reflects in the polygon count of mesh exports. Alternatively, you can decimate in Blender after importing the mesh(es).
@metin It would be nice if Blender supported these CAD formats natively and not just polygons. One day I am sure...

@mbt3d @metin

The free extension Surface Psycho is supporting some CAD I/O.

Ask the expert: @pafurijaz

@DBG3D @mbt3d @pafurijaz Yeah, SDF still needs a standard file exchange format, but that's tricky, as each SDF editor has its own techniques and primitive shapes.
@metin @DBG3D @mbt3d
If you’re talking about SDF modeling, then what I’m about to say isn’t the answer you were looking for. However, if you’re interested in support for generic CAD formats, things are moving in the right direction, but the project is in its early stages. All of this is thanks to the excellent work done by Romain Guimbal, he’s just getting started, but he’s already accomplished a lot.
https://projects.blender.org/RomainGuimbal/BlenderSTEP

@pafurijaz @DBG3D @mbt3d Nice! Yeah, I was referring to SDF in response to Mark, but David was referring to NURBS I guess. πŸ™‚

SDF and NURBS don't differ that much. Both are implicit 3D methods, while polygons are explicit. NURBS uses implicit iso-geometry, while SDF uses implicit volumes. Both feature beveling and blending with varying levels of continuity, and both need to be meshed if you want polygon models.

@metin Als Titel "Luigi im Werner-Universum"??? ​​
@cyb3rrunn3r Haha, I assume you mean the Werner that also had an Amiga game? πŸ˜ƒ
@metin Right, the Werner from the Comics
@metin And yes - i am that old 😟
@cyb3rrunn3r 😁 If I was younger, I wouldn't have known the Werner Amiga game. πŸ˜‰ I remember it was quite a nice game, with nice graphics and large objects.