This Guide is made for Maya specifically but principles can be applied to other software as well.

1.Create a camera and change the Focal lenght to about 30 or Angle of view to about 60.
2. Turn resolution gate on to be able to see what is going to be rendered.
3.Take a screenshot from ingame and try to match the camera position as close as possible in maya (put render on top of screenshot in photoshop and iterate until your camera pos is roughly correct).
4. Lock your camera settings so you don't accidentally move it.

1.Model 3D effect.
When modeling the 3D effect, keep in mind to keep inside of the borders of the original model looking through the projectioncamera. Since it's a projection if it goes outside it will project on to nothing.
2. Render the 3d effect.
Use your renderer of choice. I recommend using a soft lighting slightly from above. Avoid harsh shadows and highlights in your render, it will ruin the illusion in-game.

1. Create a new material with a projection (important that render settings is set to same resolution as your rendered image) If you have problems with creating a projection, follow the youtube tutorial on the bottom of this page.



2. transfer maps from mesh with projection material to a copy with original UV's. This will transfer the projected image to your original models uv's.

3. Erase projection from unwanted areas of your texture.
4. Test ingame!
Basic projection mapping tutorial by Johnny Pope
https://www.youtube.com/watch?v=Mzoh6cFcUFs

Bonus files for AK47
Cleaned for Sculpting in Zbrush (.OBJ) - http://depuiseau.com/AK47_clean.rar
Projection Camera position file (Maya file) - http://depuiseau.com/AK47_ProjCam.rar

To create a normal map you will have to render an additional image containing a world space normal.(make sure there is no tonemapping like srgb applied, should be just linear image)
- Project this image the same way as you did with the diffuse projection.
- Open up xnormal. Under tools you can find a tool where you load in the lowpoly mesh + the world space normal you just created, and it will return a tangent space normal. If all went well that tangent space normal should be ready to use in-game.