Sentry Gun Project - Game Production

Unreal 4 screen capture, left side perspective.

Unreal 4 screen capture, Back perspective.

Unreal 4 screen capture, Front perspective.

Unreal 4 screen capture, right side perspective.

High poly turret metallic render in Zbrush.

High poly turret shiney render in Zbrush.

High poly turret clay render.

Low poly turret clay render.

High poly turret wireframe render.

Low poly turret wireframe render.

At the beginning of this project I created a low poly model of my sentry gun based from my visual designs. I used strip modelling for the head using planes, with a symmetry modifier and shapes for the rest of the model. I then duplicated the whole model and began adding details for the high poly version, such as scales. I also imported the head to z brush to paint more shape and detail.

After I had finished modelling both the low and high poly models, I could unwrap the low poly version. I used a cylindrical unwrap for the head and relaxed the shape, for the rest of the model I used pelt unwraps with added seams and the relax tool with detached seams. 

Now the model was unwrapped I could bake the normals. I began by naming each model accordingly, then with the low poly model, I selected all the polys and set smoothing groups to one. I aligned the high poly to the low poly, then used render to texture, added the correct settings and edited the cape projection to fit the high poly model.

while texturing I used a base block colour for each different material surface, then used images and painted over the top, finally I added decals such as scratches, dirt and rust. I then created a multi sub material in 3Ds Max  with each material assigned to the correct ID. 

After my models were finished I imported each model to unreal 4, to edit the pbr materials. For the head and eyes I used a clear coat material, to make it look painted and glossy. For the body and fins I used a steel material. For the control box I used plastic with scratches, glass for the bulbs and rubber for the cables. for the rest of the model I used a metal material.