Creating bas-relief's in fusion

[Anonymous]

I have been trying to create some Bas-relief's in fusion. I know what I want to do, But keep hitting a wall. I am trying to import an obj.

I am having continuous issues with being not quad mesh, too many faces. Then when I finally get one in, I can convert it to a body because the mesh errors and says run repair. But repair wont fix the errors.

Has anyone got any good advice for a process to follow. I have tried with meshmixer and meshlab.

Thanks Matt

[dongillett]

Jesse,  You were correct.  I fixed the problems with the mesh, it's a solid now, and now I can do the combine operation with the mesh as the tool.  Thanks a bunch for your help.

Matt, sorry to sidetrack your thread.  My usage for this mesh is a little different than a releif carving but I'm excited to try out relief carvings now too that I have this process down as well.  Very excited to get some proficiency with meshes as it was the one thing that was enticing me to some other packages like Aspire... which I really didn't want to do. 

[Anonymous]

Not at all, I think I have just learnt a little more by this.

[dongillett]

Here is my first attemp at this.  I think it will work out pretty good.  I think I just need to notch (combine/cut) the horizonatal boards half way down against the vertical board I placed in there... then take that result and combine/cut it against the horizontal boards and it will all slip togehter.  Perhaps 3 horizontal boards would do (one down the center line and two down the leg lines).  I have a full size saddle that my mom gave my daughter and wants me to make it into a swing for her.  I'm thinking I might be able to use this technique to make something cool.

[Anonymous]

Man, if you can pull this horse project off you will have made something pretty darn awesome!

Jesse

[dongillett]

Thanks Jesse,  I'll break the topic of making these plywood statues out into another thread.  It would probably make a good how-to discussion once I get the process nailed down and I'm finding several interesting problems along the way to discuss further.

Back on the topic of relief carvings...

Matt,  I opened your STL file and noticed the flattening of the model into something suitable for relief carving is baked into the model.  When I was trying to do this I was just rescaling in my z-axis (in Fusion) to make it fit to my stock.  The problem with this is that I lose depth detail.  What I really want to do is reproject it like you have done here where 'local' depth is preserved and 'global' depth is compressed.  Did you hand model the rhino that way or did you start with a normal model and 'flatten' it somehow?  I can imagine doing a scale operation that takes derivatives of the curve somehow to know what should be flattened but hopefully there is some tool that already has something like this.  What's a good tool chain to get to that point?

[dongillett]

I was investigating this issue of compressing a regular 3D model into the depth needed for bas-releif's and found this really good paper.

https://people.mpi-inf.mpg.de/~kerber/publications/Jens_Kerber_Masterthesis.pdf

As all academic papers it gets pretty heavy in the end (for me at least) but the intro is well written and describes the problem statement quite well... the need to compress in z while preserving detail.  Sounds like they segment into regions (global depth as I called it) and then expand those regions out into broader ranges that overlap.  I like the comparison to HDR imaging.

I hope to find a tool that already implements something like this but a good reference if one doesn't exists and someone is compelled to create one.

[Anonymous]

Unfortunately I can not take credit for this fantastic model. I was just searching for a model to test and came across this one. http://www.turbosquid.com/3d-models/free-relief-rhino-bas-3d-model/644878

So I unfortunately will have to work out how to achieves great results like this also. Very interesting read, the paper on it.