Meshing with Meshy

NOTE: All references to Meshy are for a paid account. I have the lowest tier. I don't know if any of these features are available with the free version. 

This is to demonstrate some of the interesting challenges and issues with using Meshy in OpenSim (and SL). Many of my mesh pieces are AI images I then work with in Meshy. Not all of them come out crisp because they were not originally that way. But this is showing how to avoid pieces getting blurred or stretched if still allowing full perms.

Bring the mesh in larger than you are typically going to use it. However, don't get silly. I typically bring things in between 3 m and 5 m, unless it is going to be a life size building or some such. One thing people might do is to make the medium, low, and lowest triangle limits zero. That will cause mesh collapse when viewing from a distance. 

One thing people might do is to make the medium, low, and lowest triangle limits zero. That will cause mesh collapse when viewing from a distance. It is better to play with the triangles in meshy, reducing the remesh. When I refer to remesh, I mean the remeshing in the left hand menu, not the remesh at the bottom of the screen under the mesh piece. The remesh at the bottom of the screen remeshes from scratch. The one to the left remeshes by iterations, not replacing. 

Meshy has its tricks that are not heavily advertised.  When you first create your mesh, depending on how you are doing it, the triangles may be in the millions. It will need to be reduced. That is what you are doing with the menu on the left. You want to reduce in increments. I typically go 300k, 100k, and then depending on the mesh -30k. However, with OS, you can sometimes bring in up to 300k, regardless of what people tell you. BUT, if you are going to reduce the triangles in the viewer to zero upon upload, you WILL get mesh collapse. You just have to play with it, or you will need to run it through blender, which I totally avoid doing now 

Another interesting thing that happens in Meshy is that when you are using the left hand mesh reduction tool, once you hit 79k, your mesh may beging to "correct" flaws. You may see pieces recolor areas that had become distorted or spotty. You may see corrected shadows in crevices. It's important to watch for this because once it starts happening, your reductions will look better iteratively. If you are seeing significant distortion from 100k to 30k, go back and reiterate from 100k to 70k and see what happens. You just have to play with it. You get four remeshes from scratch using the remesh tool at the bottom of the screen. But you get unlimited mesh reductions on the left menu. And it may begin self correcting as you reduce to 79k and below. 

Sometimes, you will reduce your mesh to a reasonable amount, such as 10k-30k, but when you upload inworld, it will give errors about convex surfaces, etc. Try going back to the asset in Meshy and remeshing (left hand menu) at the same amount. That may correct the issue. Just keep in mind that if the surfaces are complex, it may not work at all. Just the nature of the beast. But it is shocking the things I have been able to convince with some adjustments!