[Blender 2.8] Ossim - Simulation baking tool for Blender (UE4, Unity)

Ubuska

Ossim is a simulation baking tool. It allows you to generate an armature and skinned geometry based on physics simulation to use in game engines and realtime applications such as Unreal Engine 4 or Unity3d or any other realtime application that supports animated armatures.

Blendermarket: https://blendermarket.com/products/ossim

Gumroad: https://gum.co/ossim

CubeBrush: http://cbr.sh/zvu75x

Video demonstration:

Generated armature in Blender:

Result exported to UE4:

Changelog

Version 1.3.0

• Blender 2.8 support
• Bugfixes

Version 1.2.0

• Cloth simulations bake
• UI improvements
• Bug fixes

Version 1.1.0

• Code refactor
• Autokeyframing feature
• UI/UX improvements
• Bug fixes for armature generation

MACHIN3

Great job!

Ubuska

https://www.youtube.com/watch?v=F2I0HDY0X0E

Ossim 1.1 Release Notes:

• https://github.com/JacquesLucke/animation_nodes is supported (dm me if there are any issues)
• Code refactor - now introducing new features will be easier
• Autokeyframing feature (now keyframing can be done with 1 click)
• UI/UX improvements (more options and context-aware tools)
• Bug fixes for armature generation:
  • Duplicated geometry now use the same modifiers/mesh data/materials as the originals
  • Generator now properly treats modifiers and non-mesh object in the selection
  • Animated physics assets now treated correctly

Plans for the next release (1.2 and 1.3):

• Cloth simulation bake
• Export templates
• Morph targets bake
• Bugfixes such as reducing produced fbx filesize and more
  Also I will probably make video sequence in UE4 showcasing actual scene with lighting, assets, etc (some destruction sequence similar to Elements Demo from Epic).

If you have any suggestions for features let me know!

Ubuska

Working on 1.2

Cloth sim bake prototype is working, now I'm working on custom bones setup cases. #b3d #Ossim #ue4 pic.twitter.com/lzAImWaTjq

— Peter Gubin (@GubinPetr) October 24, 2018

Ubuska

Hey guys. I'm about to start porting this addon to 2.8, feel free to suggest any new functionality or improvements for version 1.3!

Sage

Can you make it so it exports vertex animation?

Ubuska

Sage said:

Can you make it so it exports vertex animation?

Yes, that's basically the main idea: bake any geometry animation to bones for realtime applications.

Neox

i think he was asking about vertex animation that doesnt need bones to animate the vertices

https://docs.unrealengine.com/en-us/Engine/Content/AlembicImporter

kio

@Ubuska

the idea is to store the pivot per element in its vertex colours, and then you bake the position and rotation data into uncompressed textures, so you create like a line per frame of animation, and the next frame on the next line etc etc.

Then on the engine side you reconstruct the animation in the shader with this data.

there are some nice presentations from sidefx on this topic.

Brandon.LaFrance

@kio @Ubuska

I think this add-on does more-or-less what's described here:

https://github.com/JoshRBogart/unreal_tools

Vertex Animation- This script creates a new panel in the object mode tool shelf as well as a new operator. When called the operator will take all selected mesh objects in the active scene and copy their mesh data per frame. The difference in each vertex location and normals in world space is then stored as color data in two images respectfully. A new mesh is created for export with it's second UV channel's vertices spaced evenly across the V axis.

Mesh Morpher- This script creates a new panel in the object mode tool shelf as well as a new operator. When called the operator will (based on user settings) store shape key vertex offset data in a mesh's UV channels, and store normal data in it's vertex colors.

Hasn't seen any updates in a year, it might be abandoned, but it seems to work well in 2.79. Might be a good place to start. It is licensed under GNU General Public License v3.0.

kio

yupe exactly this

Ubuska

@kio @Brandon.LaFrance Ooh, thanks for posting that video and github link.
Really interesting technique for vertex animation. But yeah, Ossim (bone in latin) is for different, more traditional approach to animation. I will actually play with Houdini/UE4 and that script on github maybe come up with something for Ossim.

Ubuska

Ossim 1.3 Release Notes:

• Blender 2.8 support
• Bug fixes

Perro

Hey guys

I purchased this add-on a few days ago. I’ve encountered an issue where applying the plugin changes the rotation of parts. I’ve tested this on simple geometries. I’m using Blender version 4.0.2.

Is there any solution to this problem?

okidoki

You may ask this on the BlenderArtists thread ( a user with your name register three days ago  ..or if that's not you i can do ) of the developer.. 

https://blenderartists.org/t/ossim-bake-simulations-to-armature-unreal-engine-unity-now-with-blender-4-0-support/1115900/52?u=okidoki

jeno

Perro said:

Hey guys

I purchased this add-on a few days ago. I’ve encountered an issue where applying the plugin changes the rotation of parts. I’ve tested this on simple geometries. I’m using Blender version 4.0.2.

Is there any solution to this problem?

I have the same problem, is it resolved???;