So, having seen that you can edit any block models as of the latest snapshot, I though I would try editing the rail model to make it 3d. After several attempts, most of which involving just copy-pasting from another block, without any results (not giving me the misingno model, but still using the default rail model), I tried seeing if I could change any blocks. I started by changing the dragon_egg.json in meshes to coal_ore.json, and changing coal_ore.json in the main folder to use that instead of cube. When that didn't work, I tried changing dragon_egg back, and put that in instead. When that even didn't work, I tried erasing all of the models I currently had, dumping all of the models from the 14w10a.jar into my folder, and doing the same ("cube" into "dragon_egg" in coal_ore.json). Still nothing. I'm sure I'm running the latest snapshot, that I have my pack selected, that I've got the folder hierarchy right, and I have completely restarted the game every time. Nothing is working, and at this point I feel like it's a bug.
Comments 2
Also, I removed all of the other block models than coal_ore.json and dragon_egg.json (in meshes), so it's strange that it says it was making a duplicate of all of them instead of just those two.
Edit: I'm a complete idiot. I forgot that I'd put my snapshot profile in another folder, and I was putting the files in my main profile.
After loading your resource pack:
Please attach the complete output of the "Development console" which can be found on the second tab of the launcher.
If the launcher closes after game start, please edit your profile and select "Launcher visibility" then, "Keep the launcher open".