The HMMWV model was one that I tasked myself with as practice for a low poly game model. Only 4635 polys were used to create the entire model. Two maps were used to texture it: 1x Diffuse at 2048px x 2048px and 1x Bump at 1024px x 1024px. The diffuse map was created using a combination of photo references and Photoshoped textures. The model, environment and compositing were created in whole by Tim Gragg.
