It's relatively easy in Unity to get OpenGL going. For 3d Objects: 1. Create a mesh. There are a lot of tutorials/free asset store helper classes that can show

It's relatively easy in Unity to get OpenGL going. For 3d Objects: 1. Create a mesh. There are a lot of tutorials/free asset store helper classes that can show you how to do this, alternatively just copy the mesh out of an instanced object 2. Assign a pre-made shader to it 3. Render it with OpenGL, e.g. GL.DrawMesh/Instanced For general starter OpenGL you can just make calls using GL.Begin etc. The nice thing about doing this is that things like lighting, shaders, OpenGL state switching/machine etc. are already taken care of for you (and those little things can take a long time to figure out if you're new).