ainfo.gif (980 bytes)Shading Display


  This tab allows you to control the shading parameters without having to apply extra material. These parameters can be used only if any of the Shading modes are activated in the View toolbar.

This tab deals with the options concerning:


General parameters


Deactivate ambient lighting

This option has effect on the standard shading as well as the material.

By default, this option is cleared.

Default Shading Material parameters

These options have impact on the shading visualization. However, the material visualization will not be affected by these options.

Ambient & Diffuse coefficient

  Ambient: Defines the intensity of light diffused in any direction by the object, even if not lit by any light source. You can enter a value comprised between 0 and 1 for this coefficient.
  Diffuse: defines the intensity of light diffused by the object when lit by light sources. You can enter a value comprised between 0 and 1.
  Its default value is set to 1.

Specular coefficient

Specular: Defines the intensity and color of light reflected in one particular direction (highlights).
Typically, a polished object would have a high value for the specular reflectance coefficient, while a more mat surface would have a lower one.

Its default value is set to 1.

Roughness coefficient

  Roughness: Defines the dullness of the object, i.e. the size of the reflecting zone. 
Set the value to a minimum to generate very sharp highlights on very shiny surfaces. Set the roughness to a higher value to generate large specular spots creating a duller effect on rougher surfaces.

Its default value is set to 0.41.