Do not set this to 0.0 as it may cause excessively long render times in some cases.Īffect Alpha – Allows the user to specify which channels will be affected by the reflection of the material.Ĭolor only – The reflection will affect only the RGB channel of the final render.Ĭolor+alpha – The material will transmit the alpha of the reflected objects instead of displaying an opaque alpha.Īll channels – All channels and render elements will be affected by the reflections of the material.Īffect Shadows – This will cause the material to cast transparent shadows, depending on the refraction color and the fog color.Įxit Color On – Enables the following parameters: V-Ray tries to estimate the contribution of reflections/refractions to the image, and if it is below this threshold, these effects are not computed. The individual material reflection/refraction depth settings are still considered, so long as they don't exceed the value specified here.Ĭutoff - This is a threshold below which reflections/refractions will not be traced. Trace Depth – Represents the maximum number of bounces that will be computed for reflections and refractions.
Trace Refractions – If this is off, refractions will not traced, even if the refraction color is greater than black.