A few things about the source engine
I've seen people say source doesn't like flat planes or polygons going through each other
ALL loving LIESnow go make some awesome source models
those of you using milkshape
http://www.fpsbanana.com/tuts/6797I personally export my models as OBJ files from blender and import them to milkshape
then export as SMD for compiling
If anyone has any compiling issues just ask them here
I know a few things
also Marcem has done a lot with source compiling so he'd probably be able to help.
MY TEXTURE WON'T WORK/IS BLACK AND PURPLE SQAURES Make sure the texture dimensions are divisible by 2 good sizes are 512x512, 256x256, or for really detailed texture 1024x1024 also check your QC file and the VTM file, Post both here if you have to
MY MODEL GOES THROUGH THE FLOOR Edit the collision model accordingly, this causes your model to collide with solid surfaces.