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VRay.com - Your source for all things VRay  ::  VRay for SketchUp  ::  Manual  ::  Depth of Field

VRay for SketchUp Manual

VRay for SketchUp Manual

Depth of Field

What is Depth of Field?

Depth of field refers to the amount of an image which is in focus and the amount which becomes blurry. In photography it is impossible to have every part of an image in perfect focus. Because of this a photographer chooses what will be in focus and what will not. Within V-Ray this will correspond to the focal distance. The amount in which an object is out of focus depends on how far away it is from the focal distance of the camera as well as the size of the camera’s aperture. A small aperture will have a only a slight amount of blurriness for objects which are not within the focal distance. A large aperture will have a large amount of blurriness for objects outside the focal distance.

Open V-Ray for SketchUp’s Render Options. Pull down Camera control menu and you will see the big item of Depth of Field below. Default is set to off, check it if you want to have Depth of Field in the final rendering. Depending on the way your camera is set up you may want to check Override focal distance. With out this setting enabled V-Ray will use the focal distance of the camera.

Depth of Field settings

How to find out the current setting of focus distance of the camera?

1. Open file Chairs-DOF.skp. You will see the image below which shows the distance between the chairs. Please note the distance between the camera and the chair in the center which is 67’ away. This is the number we need for the override focal distance, which is 800. (800 inches = 67 feet).

It is important to note that the exact location of the camera was identified with ruby script "Note Camera Point" from www.smustard.com website.

Depth of Field camera distance

Image on the top is rendered without Depth of Field and image on the bottom is rendered with Depth of Field.

Depth of Field example

Depth of Field example

Size of Aperture

There is Aperture located at the top of the control panel for Depth of Field under Camera. V-Ray doesn't use the same number unit of F1.4 F2.0 F11 as the normal camera does to control the amount of light that comes into the camera. Instead,  it uses the system unit for its size. Smaller numbers have less effect on Depth of Field. Larger numbers will make the object very blurry and takes a longer time to render, especially when calculating the edge of object for Depth of Field effect. So we recommend you start with a smaller number and move your way up if you need a stronger effect. This scene’s aperture was set to 24. I recommend you try different values and see what results you get.

Depth of Field Size of Aperture

Below are some images showing more examples of Depth of Field.

Depth of Field example

Depth of Field example

Depth of Field example

Depth of Field example

Depth of Field example

Depth of Field example

Depth of Field example



V-Ray 3 for SketchUp

V-Ray 3 for SketchUp Now Available

 

V-Ray 3 for SketchUp is here and includes a new User Interface, Denoiser, Clipper, SketchUp 2017 support and more!


Feature Showcase:


New UI

Streamlined user interface for faster workflows.

V-Ray 3 for SketchUp - New UI


Denoiser

Automatically reduce noise and cut render times by up to 50%.

V-Ray 3 for SketchUp - Denoiser


Clipper

Create cutaways and section renders with ease.

V-Ray 3 for SketchUp - Clipper


Purchase V-Ray 3 for SketchUp Now!






Skatter for SketchUp

Skatter for SketchUp

Skatter for SketchUp
Rendering by Brice Desportes


The Smart SketchUp Plugin For Scattering


Populate your scenes with UNLIMITED Vegetation with TOTAL CONTROL all while SAVING TIME and never leave SKETCHUP!

Skatter is Your Best Friend

From small carpets in a living room to large scale forests, Skatter is designed to help you achieve the final look fast and easy.

Render Unlimited Amounts of Objects

Through its "Render only" feature, Skatter sends all the scattering information directly to the render engines, bypassing Sketchup. That way, you keep a lightweight and responsive file while still being able to render huge amounts of objects.
 

Skatter for SketchUp
Rendering by Mads Bjerre Olesen





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News News

Monday, August 28, 2017

Corona Renderer Now Available

Corona Renderer is now part of the V-Ray family


Corona Renderer



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MultiScatter V-Ray Training

Learn V-Ray
 

Create photo-realistic renders and learn V-Ray like a real DSLR camera.

From the basics to advanced, the 5-Step Render Workflow (5SRW) V-Ray course provides 50 V-Ray lessons that include easy to follow videos, concepts and exercises.
 

V-Ray Online Training - Rendering by Heba Aboelenen
Rendering by Heba Aboelenen

V-Ray Online Training - Rendering by Monica Pelser
Rendering by Monica Pelser

V-Ray Online Training - Rendering by Ruben Barrera
Rendering by Ruben Barrera


The online course walks you through the following steps:

1: Framing
2: Light Balance
3: Materials
4: Final Render
5: Post Production
 

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Corona Renderer Now Available


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