This is a common problem for many SFM users, and in my case it’s with the Warpig hat model from TF2 I added to SFM using GCFScape:
I went ahead and decompiled the model using Crowbar, and once that was finished I opened up its .qc file and added two new lines: ‘$mostlyopaque’ and ‘$ambientboost’ before recompiling the model and shoving it back into SFM. Now normally this works according to the tutorial I looked up but in my case these steps just made the model completely invisible instead. As a result, I don’t know what the hell to do and I’m hoping one of you might have had this problem before. Any ideas what I can do to fix this?