Beginning Lighting and Rendering with 3ds Max and V-Ray

Optimizing the Image Sampler and Positioning the V-Ray Sunlight

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This segment focuses on optimizing the image sampler and positioning the V-Ray sunlight.


  • Image sampler
  • Output size
  • V-Ray Sunlight

About this video

Jamie Cardoso
First online
21 December 2018
Online ISBN
Copyright information
© Jamie Cardoso 2019

Video Transcript

[Audio starts]

In this segment, we’ll focus mainly on optimizing the image sampler and position the V-Ray sunlight. The first step is to adjust the image sampler anti-aliasing values for draft renders; reduce output size and lock the camera to render; then create the V-Ray sunlight and sky. You can use a progressive Rendering. In my case on this particular exercise, we’re going to use the bucket. In a minimum shading rate we can increase its value to improve the render quality without affecting the rendering time. Unlike the noise threshold, noise threshold will actually affect rendering time whereas minimum shading will not. So we’re going to increase it to about 12 because you know you’ll not affect the rendering times in here because this is a just for test renders we are going to keep it really low, which is quite draft. Next thing that we’re going to do is to go to Common tab, put the area to render group there. As you can see, the image aspect is locked and this is quite good. It’s set to 700 because this is obviously just for test renders. But for the final render we can go to 4000 pixels. Because the image aspect is locked, it usually changes automatically. Let’s change it back to 700 pixels there. The other thing that we’re going to do is to make sure that we lock the view to render. So even if you’re working on the front or top view port, if you lock the render, the view to render to the camera, you’re always going to render the camera there. Also, all is enabled to show save frames function. Not everything you see in a view port is what will be rendered. To avoid surprises, simply enable the Show Save Frames function. Without further ado, we’re just going to do a test render of this scene to see what the scene looks like. As you can see, the scene is a bit dark. Not much happening. The first light that we’re going to create now is the sunlight, so seen such as this. Go to create panel, click on the light button there. Click on the V-Ray sun button. Extend the view port. Click and drag to create the sunlight like so. You should be prompted with the V-Ray sun dialog like this. Click yes to optimize the automatically V-Ray sky to the environment map. To see where the V-Ray’s sky was added, simply click on a rendering tab and choose the environment option or click number 8 on your keyboard. This way the V-Ray sky has gone to. So your first slide has been created. Let’s just make sure that the sunlight is actually hitting the areas that we want it to. Because you work with lights, we’re going to restrict the selection to lights only. Click on the select by name button. So the V-Ray sun is currently selected, you go to V-Ray sun target, click okay. Begin moving up the V-Ray sun target until you see the blue line in the camera view port. This segment is now concluded. Before test rendering it’s always important to optimize the image sampler, the render output size and position the sunlight correctly.

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