3D WORKSHOP:
Product Visualization
Surface Quality: To analyze the geometry and surface quality, in particular for sharp edges, uneven elements, or how a highlight is broken over an edge, it is also possible to map an environmental image or a zebra image over your object. The Environmental image basically makes the object look like a strong chrome ball, while the Zebra image produces vertical lines which then when the object is being rotated will move over the surface. Any uneven parts in that Zebra pattern will identify a problem with the geometry.
23 visible highlight. This is why the mirror scenes have light meshes to generate those types of specular highlight reflections. With the lights having their specular value activated, the highlights would conflict with the rendered highlights of the material.
Hemi Light No Specular GLSL Preview showing distortions
Turntable Setup with Hemi Lights
Zebra Image Texture
by Claas Kuhnen
Application:
www.blenderart.org
Personally, I prefer using the Hemi light approach. I use two opposite facing hemi lights. The top one is stronger and functions as the main light, while the second one can be used as a fill light and has a much lower light energy. Both lights have their specular function disabled and only add a little of additional diffuse value to the scene. The material illumination and highlights are already done with the pre-rendered material. Again, realistic light reflections are not equal to the specular light shaders we are used to. In nature the reflection of the light source is also the the shape of the
Hair Dryer Blue
Hair Dryer Red
Hair Dryer Red Texture
Issue 21 | Apr 2009 - Look What I Can Do!!