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The amount of Secondary Samples sent out into the scene is mainly controlled by the Subdivs settings from individual Lights / Global Illumination / Materials in the scene, and the Noise Threshold setting of the DMC Sampler. The amount of Primary Samples sent out into the scene is mainly controlled by the Min Subdivs, Max Subdivs, and Color Threshold settings of the Image Sampler. So in order to reduce noise, you need to provide V-Ray with more information - and to provide V-Ray with more information, you need to take more samples. Noise present in a render means that V-Ray wasn't able to gather enough information about what's going on in a scene. This is because Noise is caused by a lack of information.
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The more a scene gets sampled, the more information V-Ray is able to gather about the scene, and the higher quality the resulting render will be - which means less Noise in the render. In order to accurately figure out what's going on in a scene, many Primary and Secondary Samples are needed to be taken. If you already know the underlying concepts and just want the technical step-by-step procedure, click here to skip right to it.įrom this point forward, we'll simply refer to 'Rays' as 'Samples' - because that's what the purpose of a Ray is - to take a Sample of a scene to gather information about what's going on in it.
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And finally I'll provide a step-by-step procedure to optimize any scene to render with an ideal balance of quality and speed.
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Then we'll learn how to identify the different sources of noise a scene can have. Then we'll go over an example scene to demonstrate exactly how a render can be optimized to be faster and cleaner. We'll first cover some of the underlying concepts behind how ray tracing and V-Ray's sampling works. But with a bit of understanding of how V-Ray works under the hood, you can achieve a higher quality result WITH faster render times - in some extreme cases ranging between 3x faster to 13x faster than the universal settings. Many times you'll see artists adopt the 'Universal V-Ray Settings' of having the Image Sampler (Anti-Aliasing, or AA) Max Subdivs value set very high (like 50 or 100), and then simply lowering the noise threshold value until the render becomes clean enough - thinking that it's the best / fastest that V-Ray can do. There's often a lot of confusion surrounding V-Ray's sampling methods and what 'ideal' settings are.
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When you are done with this course you will know how to bring a 3d model into Vray for Sketchup 2016 and Vray for Rhino 5, render it out, and touch it up in Photoshop to give your final image a professional finesse.This tutorial attempts to cover the process of optimizing your V-Ray render settings to get the best possible render quality and fastest render time for a given scene. Finally you will learn how bring your rendered image into Photoshop for post production, utilizing rendered channels, adding real world images, and compositing effects. Then, you will learn how to render out your model, including how to utilize render settings and how to tweak those settings to get your rendered image ready for post production. First you will learn how to set up your initial project, including bringing in a 3d model, setting up lights and cameras, and creating materials. 3d Rendering with Vray 3.2 for SketchUp and Rhinoģd Rendering with Vray 3.2 for SketchUp and Rhino : In this course, Jorge Barrero from HKS will show you how to create beautiful 3D renderings with Vray for SketchUp 2016 and Vray for Rhino 5.