4 . 8 . materials

4.8. MATERIALSSelective material rendering

MATERIALSMaterial rendering

Material Rendering (Skin)

Game renderers are often required to generate a range of material effects (from hard surfaces such as wood or granite, to softer surfaces such as soil, leather, or skin).

Some types of material can be adequately renderer using a straightforward combination of diffuse, normal, specular, height/bump maps.

More sophisticated materials typically require specially developed shaders.

Pre-computed Ambient Occlusion

Diffuse colour map

Bump map

Specular brightness map

Determine Incidence light (irradiance)

Determine sub-surface irradiance

Produce multiple blurs of sub-surface irradiance

Final pass

DIRECTED READINGDirected reading concerning rendering

Directed

reading

Directed reading: Directed

reading

• Read Realistic Shading of Human Skin in Real time – for an early paper on real time skin rendering.• Read GDC 2007 - Advanced

Skin Rendering – for an nVidia presentation on skin rendering• Read GPU Gems 3 -

Advanced Techniques for Realistic Real-Time Skin Rendering – for near state-of-the-art real-time skin rendering

Summary

To do:Read the directed

readingYou are advised not to

consider developing a skin material renderer!

Today we explored:

Skin rendering