wickles
commented
5 years ago Main issue is that the Blender Internal (BI) renderer was removed from Blender, which is what CATS/mmdtools used before, so none of your old materials will work anymore because Blender does not know how to handle them. I'm not sure about your armature and export issues, for me when I open an old project in 2.80 everything works fine except the materials.
There are a few ways I've found to deal with the materials issue.
- Open the old project first in 2.79 and convert BI materials to Cycles using either MMD Tools (included with CATS) or another addon like this. Then they will work in 2.80. Not ideal if you have lots of projects.
- Reimport the original MMD file and apply CATS fix to create new materials (MMDShaderDev) from scratch. Not ideal if you made lots of edits.
- Open the old project in 2.80, and reimport the original MMD files like above, this will be temporary. Select the old mesh and shift+select the new mesh, then open Links menu (Ctrl+L for me) and select Materials. This should link all the old broken materials to the new working materials. Then you can delete the reimported model and the old one should work normally.
- Finally if you just want your old model working in Blender again without any fuss, you can always just import the exported FBX from 2.79. Caveats: You will lose any blendery stuff not included in the FBX, and shaders will be 'Principled BSDF' instead of 'MMDShaderDev' so you won't have direct access to some of the MMD toon shading options (in Blender).
Experts feel free to correct me on anything.
Currently I can. not get any of my projects from 2.79 to work in 2.80, It does not detect the armature, theres like 20 "collections", textures are not visible, can't export as it does not detect a model.
It would be really helpful if there was some sort of guidance on how to move my projects to the new version of blender or a automated conversion button as Fix Model is grayed out