This page provides information on V-Ray Render Settings integrated in Solaris Render Settings LOP node.
Overview
V-Ray Render Settings are located in the V-Ray tab of the Render Settings LOP. The settings are similar to those in the V-Ray Renderer ROP. The settings become available when you create a Render Settings LOP from ||stage|| > Rendering > Render Settings.
Some of the settings are also available in Houdini's Display Options toolbar.
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.
Add if Exists – Adds an existing value to the attribute.
Multiply if Exists – Multiplies the attribute value only if previously existed.
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.
V-Ray Tabs
Render Device – Switches between the CPU, CUDA or RTX rendering modes.
GPU: Add CPU Device – Automatically adds a CPU device for GPU rendering.
Export Settings
Export Mode – Specifies whether to only export a .vrscene file, export & render, or only render the scene.
Export Filepath – Specifies the location where the output of the render process is saved.
Filter Primvars – Detects and exports only primvars that are used. Note that this option may increase export time but reduces memory usage.
Tabs
Image Sampler – Controls the overall image sampling.
Global Illumination – Controls global illumination.
Color Mapping – Applies color transformations on the final image colors.
Camera – Controls the Physical camera.
Options – Globally controls some geometry, lighting, material, and texture aspects of the rendering. For example, the options can be used to disable all shadows in a scene, or to use probabilistic light sampling to speed up test renders.
Caustics – Controls the generation of the photon map.
DR – Controls distributed rendering (a technique for distributing a single render job within a single frame across many computers in a network).
IPR – Controls interactive rendering. If no V-Ray Render Settings node is created, the IPR settings are accessible in the Viewport settings.
Bake – Controls the baking of textures.
Output – Controls the output files, including deep exr images and VDB.
Post translate – Allows for adding Python scripts to control specific parameters.
Toon – Controls the global toon effect overrides.
Viewport Settings
The Viewport Settings can be accessed in the Display Options toolbar, or from the Display Options: Solaris window (press D or click the button).
The Show Denoised Result toggle denoises the render in the viewport. Note that a V-Ray Denoiser render element must be present and enabled for this toggle to work.
The Headlight Creation toggle creates headlight if no lights are present in the scene.