This page provides information on the V-Ray Yeti LOP.
Overview
The V-Ray Yeti settings are located in the V-Ray Yeti LOP, accessible from ||stage network|| > right-click > V-Ray > V-Ray Yeti. The settings are similar to the standard V-Ray Yeti settings in obj network.
The V-Ray Yeti LOP loads and renders Yeti cache files in Solaris. It is recommended to use hair materials for hair-based objects used for simulating hairs.
Creating and Setting Attributes
The parameters that correspond to a USD attribute have a pop-up menu that controls how the LOP node authors the attribute:
Set or Create – Sets the attribute to a given value, regardless of whether the attribute previously existed or not.
Set if Exists – Sets an attribute to the given value only if it previously existed. Use this option to make sure the attribute is set on primitives of the correct type.
Block – Makes the attribute appear to not exist so it takes on its default value.
Do Nothing – Does not affect the attribute, i.e. does not create or change the attribute in any way.
Parameters
File – Specifies the Yeti cache file.
Density – A multiplier for the density of the hair strands.
Width – A multiplier for the width of the hair strands.
Length – A multiplier for the length of the hair strands.
Segment Length – When the Dynamic Tessellation is enabled, this parameter controls the size of the segments generated by the subdivision. A value of 4 means that a segment is going to be 4 pixels long in the final image. This way segments that are far away from the camera are going to be larger in real world units.
Dynamic Tessellation – When enabled, V-Ray dynamically changes the subdivision of the hair based on the distance to the camera. This means that strands that are closer to the camera are subdivided more times than strands that are far away. This allows for a better memory utilization.
Obey ROI – When enabled, obeys region of interest.
Min ROI/Max ROI – Specifies the minimum and maximum region of interest.
Image Search Path – Specifies a folder to scan for the texture paths baked into the Yeti cache.
Verbosity – Determines what kind of messages are shown in the window.
