Using HDRI in V-Ray for SketchUp


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By Nomer Adona

HDRI stands for High Dynamic Range Imaging. It is a technique that allows a larger span or range of luminance between the light and dark areas of an image. You can use Photoshop or Photomatix to create HDRI. For this tutorial I will not talk about how to create them but rather how to use them in V-Ray for SketchUp. I love DOSCH HDRI but if you want some free excellent HDRI you can visit my favorite site . Please don’t forget to acknowledge them.


Let me begin this tutorial by using this simple SketchUp setup composing of different types of glass urns using the follow me tool. Since I already rendered the scene before writing this tutorial, the V-Ray glass materials were already added. You might want to download my separate V-Ray Glass Tutorial here.


SketchUp Setup

In V-Ray for SketchUp you can actually use the HDRI both as a background and an IBL (Image Based Lighting). If you want to use the HDRI as background, all you have to do is to load it in the Environment Rollout/Background. If you want to use it as an IBL, then you have to load this HDRI in the GI (Skylight). This will become a light source then to
illuminate the scene. Alternatively, you can use the sun and HDRI together by using a Blend Map, but I won’t tackle this one here. The image below explains this clearly.


Render Options

To load the HDRI, all you need to do is click the small “m” highlighted at (1) and then click type “Bitmap”, then on the Bitmap File highlighted at (2). Next  browse the location of the HDRI file in your computer (3).



You should select Environment UVW either cylindrical, spherical or box type (depends on the HDRI map type you have). In my case I have chosen spherical map, since I am using a spherical HDRI map. My setting is basic, except for two things, my Physical Camera and the Irradiance setting which has a little higher hsph subdivision.


Physical Camera and Irradiance Setting

Alternatively, do not even bother to use the Physical Camera since the HDRI will override the SUN which is a big Omni light. You will find that you don’t have to worry about balancing the Physical Camera setting and the multiplier of your HDRI. The only problem really is just syncing the V-Ray camera with the SketchUp camera. This is the reason why I used the Physical Camera. By using Thomthom’s V-Ray Toys plugin. I was able to  sync the V-Ray camera and SketchUp camera. The image below is the render. The render is a bit dark, but you can see the reflection on the
environment. You can also see the rendering time is quick.


First V-Ray Render

To lighten the image, I just increase the gamma of my HDRI, both in the background and skylight. Saving Irradiance and increasing the HDRI Gamma to 1.2


Second Lighter V-Ray Render

Alternatively instead of raising the Gamma, you can also adjust the multiplier of the map or create an extra Omni light to lighten the scene. Again this thing is up to you. Finally, here are some more renders using different HDRI’s.


Different HDRI


Different HDRI

I hope this tutorial is useful to you and look forward to sharing my next!


Nomer Adona

Some of Nomer Adona’s other tutorials here at SketchUpArtists:

10 Responses to “Using HDRI in V-Ray for SketchUp”

  1. aswin on January 12th, 2011 11:16 am

    its verymuch informative….. thanks

  2. Januar on April 5th, 2011 6:29 pm

    Awesome! thanks bro :)

  3. naseeh on June 23rd, 2011 12:16 pm

    Its Sooooooo nice, am a vray enthusiastzzz… thankss a lot!!

  4. str9led on September 29th, 2011 3:24 pm

    thanks for the information is certainly useful to me in

  5. fajar on December 5th, 2011 11:01 pm

    Very helpful..he’s a good man!!

  6. Amit on December 24th, 2011 4:56 pm

    How do you controll the size of HDRI appearance in the background. I mean i may be proportionately bigger or smaller than what it should had been. in that case the image will not look real.
    for example, in the last render lets assume that the painting in the wall is being rendered about the same size of the green glass of the model. how to control that?

    thanks in advance.

  7. david on February 6th, 2012 3:54 pm

    sir can we use hdri/ibl on night settings? where can i download hdri files? tahnks a lot.

  8. Roberto on September 26th, 2012 1:15 am

    How can I reduce the scale of HDRI image?
    in my scene the hdri is huge….


  9. hulaimy on October 10th, 2012 6:01 am

    thanks for your tutorial.
    very informative

  10. Mark Carpio on July 12th, 2013 4:54 am

    very good..i want to try this but at first it would take a longer time to learn definitely but I will try to learn fast..

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