Reviving the Mac?

After struggling with this old mac i have and tried to reinstall it with the normal way, im back on trying to revive this dual core old mac. so. enough said.

Meanwhile ive managed to run Google Mobile Ads with new script. ads are running. got issue with trees of jungle asset. trees are one side so cant be seen from below. im importing standard Asset - Environment pack.

also im look for a double sided shader. something with cull of also...

Finally something good to post. this video explain it all on how to make a two sided shader.

Also My Mac is Revived!!!

Tnx to this tutorial, and the currect image with el capitan from here Download El Capitan.