|Shadow Attenuation ON|
|Shadow Attenuation OFF|
To give the trees more depth and detail I wanted to create a normal map for each. I used a piece of software called Crazy Bump where you can input a picture of your choice and it will automatically create a normal map for you. You are then able to adjust certain attributes to give your desired result. I tested out bump mapping and also displacement mapping to see if either could create a better result, however the normal map gave a more realistic yet subtle result when compared to the others. I created the displacement map through Crazy Bump, and the bump map was a greyscale version of my tree texture I created in Photoshop. The bump map, I found was too harsh in some areas and didn't create a very realistic result, whereas the displacement map was too subtle and didn't show up very well. I have used normal maps on my other tree and will be doing the same with the large apple tree as well.