SketchUp Shadow

We’re going to start by turning on SketchUp shadows – these will give you a preview of what the actual shadows will look like within your model. You can adjust some time of year and also time of day settings to urge your sunlight where you would like.

If you’ve already applied materials to your model, you’ll activate a cloth override within the settings section. This will override your materials to whatever colour you have set. In this case, for simplicity’s sake, you can also not placed glass in the windows. To exclude a glass material from your material override, you’ll adjust that using the fabric settings in your Vray Asset Editor window.

The first thing you’ll notice is that your render may be a bit dark. We are going to adjust this by going in and adjusting the camera settings. You can find these within your Vray Asset Editor window, under the settings tab. One thing to note – whenever you have an interior render that isn’t bright enough, it’s a good idea to start by adjusting your exposure rather than making your lights brighter. This becomes especially important when handling artificial interior lights, otherwise, your lighting calculations start becoming unrealistic.

Camera in V-Ray

In Vray, the camera acts a lot as a camera would in real life the shutter speed or exposure value is going to affect how bright your image is. The lower the worth, the brighter the image are going to be . You can either just adjust the exposure value, or there are more advanced settings if you click on the advanced settings button. We are going to set our exposure value to 11.

Note that this makes your image noticeably brighter. However, you would like to form sure that you simply don’t increase exposure or brightness such a lot that you image becomes blown out.

You can check this by clicking the button for “force colour clamping.” this may indicate on your image where the super bright areas are. In this case, you can see how we’ve brightened our image up so much that we can’t see our sky or our ground plane anymore. We can reduce the brightness of our sun to .5. Now you will notice how this reduces the blown-out areas in our image. Our shadows are also looking a bit too straight – very unrealistic. To create more soft, rounded shadows, enter your sunlight settings and adjust your sun size – during this case, we’ll set it to three.

If we want to do is create an artificial light that will push more light through our window?

Rectangle Light

To do this, we are going to use a rectangle light outside our windows. A rectangle light is a light in Vray that casts light. You can extract a rectangle light using the lights toolbar within Vray. Simply place it outside your window, we can scale it so that it covers both windows.

You will notice, that when we place this, we can no longer see our sky, which is not what we want, so we are going to go into our light settings and under options, select the choice for invisible. This means that the sunshine is going to be cast without the particular geometry being rendered.

Note that you may have to make some adjustments once you turn your materials back on, it should be fairly easy for you to achieve the results that you’re looking for.

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