Thin Mode – When enabled, V-Ray Dirt enhances the look of thin surfaces by casting less dirt on them. Ignore for GI – When enabled, the Dirt effect is ignored in GI calculations. Ignore Bump – When enabled, bump maps are excluded from V-Ray Dirt computations. Consider Same Object Only – When enabled, the Dirt affects only the objects themselves, without including contact surfaces and edges. If off, the entire scene geometry is participating for the final result. Double Sided – When enabled, rays are traced both in the direction of the normal and in the opposite direction. This creates an effect where both crevices and edges are occluded. Ignore Invisible Objects – When enabled, Dirt takes into account the opacity of the occluding objects. This can be used, for example, if you want to calculate ambient occlusion from opacity-mapped trees, etc. When disabled (the default), occluding objects are always assumed to be opaque. Note that working with correct opacity is slower since, in that case, Dirt must examine and evaluate the material on the occluding objects. Ignore Self Occlusion – When enabled, the object does not occlude itself. It is occluded only by other objects in the scene. Environment Occlusion – When enabled, Dirt includes environment contribution to the shading of unoccluded areas. Affect Reflection Elements – When enabled, the ambient reflection affects the Reflection render elements. This can be used to create a reflection mask. Glossiness – Controls the spread of the rays traced for Reflection Occlusion. A value of 1 means that just a single ray is traced (just like when tracing clear reflections); smaller values cause multiple rays to be traced in the approximate reflection direction. |