The Ambiance Shader plugin is very similar in function to the Ambiance Color property in the Surface properties. Like the Ambiance Color property, it can be applied to Models, Groups, and Materials. But, it can also be applied to rendering. By applying the Ambiance Shader to the camera property, or in the Render settings, every object in the scene use the selected color for its areas that are in shadow. It is recommended that you use the Ambiance Color property in the Surface properties for cases when you do not want to use if for the whole scene.
To use the Ambiance Shader, Plugin Shaders must be turned on in the Tools:Options:Rendering tab. Expand the Plugin Shaders to see the Ambiance Render Shader property. Select Ambiance from the popup. Now you may expand it to set the Ambiance Color property.
You can select an ambiance color by clicking the color chip and picking one from the palette. The ambiance color along with ambiance intensity determines the color of an object even when no light is hitting it. If the ambiance color is the same as the diffuse color, then when a new diffuse color is chosen the ambiance color will be set to match the diffuse color. This is handy because it is most common to have diffuse color and ambiance color match. If ambiance intensity is 0 then ambiance color will have no effect. If ambiance color and diffuse color are the same then the ambiance color will not show up over decals, rather the decal color will be used with the ambiance intensity
Ambiance color of blue