OpenCTM VS meshmixer

Offloading the CPU is a good thing, but to me this does not seem like the game changer that they are trying to make it sound like. To really get stellar loading speeds you need to use advanced context-aware compression techniques, e.g. Similar to OpenCTM (I'm not sure what's used in games these days in terms of mesh compression and similar, but lossless entropy encoding like zlib/GDeflate is only a small part of... Source: over 1 year ago

To add a bit to what others are saying. Mesh mixer is sometimes a great tool for some of this. Source: 8 months ago

Ah right. If you can't get the source file, you could try smoothing them out in meshmixer. Source: 10 months ago

The quickest fix I know is to use the free meshmixer. Source: about 1 year ago

There are programs such as Meshmixer specifically intended to do that, others such as Blender which can do a good job (but beware of missing surfaces or inside-out triangles) and some CAD programs such as Fusion 360 which have the ability to convert meshes. Even Tinkercad can make some changes. It's always better to get a CAD file in a common interchange format such as a STP (STEP) file if you can, though. Source: about 1 year ago

Meshmixer seems to be no longer in developement, with their integration of similar features with fusion360 according to their site https://meshmixer.com/. Source: about 1 year ago