This model is a very detailed subdivision model, using a 32 bit displacementmap. The model has also been setup with a realistic material that also works with the standard scanline renderer.
No special renderer is needed.
The base model is lightweight, and has been created with animation in mind. Texture specs.:
Diffuse map - 2048x2048
Specular strength - 2048 x 2048
Displacement map - 2048 x 2048
Bump map - 2048 x 2048
+ some additional maps for eyes and micro bump. Make sure you download the 'hippo_360.avi' file as it will give you a complete preview of the model as well as a good look at how the material behaves with a moving camera. | 
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