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V-Ray 2.0 for Maya Essential Training
Illustration by Richard Downs

Creating a skylight effect


From:

V-Ray 2.0 for Maya Essential Training

with Brian Bradley

Video: Creating a skylight effect

Oftentimes in our scenes, we will want to create a sky or environment light setup for ourselves. Now, there are a number of common uses for this kind of lighting setup. We can use it to quickly check the fidelity of mesh models in our scene. We can use it to make certain that all surfaces that are meant to be in contact with one another are indeed doing just that. In this video, we're going to examine one of a number of skylight options that we have when rendering with V-Ray. Now, to create what I will refer to as a GI environment skylight, we just need to come to our Render Settings window; pull that up for ourselves.
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  1. 4m 28s
    1. Welcome
      59s
    2. What you should know before watching this course
      51s
    3. Exercise files
      40s
    4. Workflow recommendation
      1m 58s
  2. 11m 32s
    1. Installing V-Ray
      4m 25s
    2. Setting up V-Ray
      3m 14s
    3. Locating V-Ray's tools and features
      3m 53s
  3. 24m 41s
    1. Image sampling explained
      3m 19s
    2. Understanding subdivs
      3m 49s
    3. Using the DMC Sampler
      6m 54s
    4. Overview of color mapping
      4m 45s
    5. Understanding the color-mapping modes
      5m 54s
  4. 27m 55s
    1. Dealing with lighting problems
      9m 26s
    2. Adding a spherical fill light
      8m 50s
    3. Creating a mesh light
      2m 43s
    4. Creating a skylight effect
      3m 18s
    5. Working with the dome light
      3m 38s
  5. 44m 25s
    1. Global illumination (GI) explained
      3m 55s
    2. Understanding primary and secondary bounces
      3m 34s
    3. How irradiance mapping works
      5m 30s
    4. Using irradiance mapping, part 1
      4m 35s
    5. Using irradiance mapping, part 2
      5m 44s
    6. How light cache works
      3m 48s
    7. Using light cache
      7m 58s
    8. Understanding brute force GI
      2m 18s
    9. Using brute force GI
      7m 3s
  6. 40m 3s
    1. Introduction to V-Ray-specific materials
      2m 22s
    2. Creating diffuse color
      8m 31s
    3. Making reflective materials
      5m 40s
    4. Blurring reflections
      8m 31s
    5. Making clear and colored glass
      8m 49s
    6. Creating a translucency effect
      6m 10s
  7. 24m 15s
    1. Introduction to image sampling
      2m 56s
    2. Using the Fixed-Rate sampler
      5m 57s
    3. How to use the Adaptive DMC sampler
      5m 21s
    4. Working with the Adaptive Subdivision sampler
      7m 7s
    5. Comparing image-sampling renders
      2m 54s
  8. 17m 23s
    1. The physical workflow explained
      2m 37s
    2. Working with VRaySun and VRaySky
      7m 39s
    3. Controlling the VRayPhysicalCamera
      7m 7s
  9. 45m 0s
    1. Depth of field: VRayPhysicalCamera
      5m 45s
    2. Depth of field: perspective viewport
      5m 49s
    3. Creating a motion blur effect
      9m 30s
    4. Generating caustic effects
      7m 51s
    5. Using VRayFur
      6m 2s
    6. Setting up render-time displacement effects
      10m 3s
  10. 34m 17s
    1. Render elements workflow
      6m 47s
    2. Preparing to composite
      2m 22s
    3. Compositing V-Ray elements
      7m 8s
    4. Putting extra elements to work
      6m 20s
    5. Post-lighting a scene
      11m 40s
  11. 11m 47s
    1. Overview of V-Ray RT
      5m 27s
    2. Demonstrating the RT workflow
      6m 20s
  12. 1m 8s
    1. What's next?
      1m 8s

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V-Ray 2.0 for Maya Essential Training
4h 46m Beginner Mar 08, 2012

Viewers: in countries Watching now:

This course introduces the features of the V-Ray 2.0 rendering engine and demonstrates how to extend the range of Maya with its state-of-the-art tools, such as irradiance mapping, fur and hair textures and shaders, and stereoscopic 3D rendering. The course covers critical concepts such as creating basic materials, image sampling, color mapping, subdivs, and lighting, as well as the Render Elements, RT, and physical rendering workflows in V-Ray. Exercise files are included with the course.

Topics include:
  • Installing and setting up V-Ray
  • Using the DMC Sampler
  • Understanding color mapping modes
  • Adding a spherical fill light
  • Working with the V-Ray Dome Light
  • Using irradiance mapping and the Light cache
  • Creating diffuse color
  • Making reflective materials
  • Creating translucency
  • Ensuring quality with image sampling
  • Controlling the V-Ray physical camera
  • Creating a motion blur effect
  • Compositing V-Ray elements
Subjects:
3D + Animation Rendering Textures Materials Visual Effects
Software:
V-Ray
Author:
Brian Bradley

Creating a skylight effect

Oftentimes in our scenes, we will want to create a sky or environment light setup for ourselves. Now, there are a number of common uses for this kind of lighting setup. We can use it to quickly check the fidelity of mesh models in our scene. We can use it to make certain that all surfaces that are meant to be in contact with one another are indeed doing just that. In this video, we're going to examine one of a number of skylight options that we have when rendering with V-Ray. Now, to create what I will refer to as a GI environment skylight, we just need to come to our Render Settings window; pull that up for ourselves.

We need to come into the V-Ray tab, and again, if I just close the Image sampler rollout, you can see we have this Environment rollout available to us, and we have an Environment Override checkbox that, if we enable, we get all of these controls coming to life, one of which, you can see, is a GI texture option. Now, using this control, in connection with V-Ray's indirect illumination systems, we can create a very quick, very basic skylight effect for ourselves. We do, of course, need to have indirect illumination turned on for this option. It is a global illumination effect, so if we come in, if we just put a check in the On box, and I just want to come down, and make certain that we've got Irradiance mapping, and Light cache set as our options. By default, we'll find probably Brute force is set in there, but these two will give us a very nice and quick GI effect in the scene.

Now, with those options set, if we just come up and take a render, you can see we get a very, very quick skylight effect for ourselves. Now, of course, there're some good things here, and some bad things. You can see one of the good things is that it's very quick and easy to set up. One of the bad things is that there is not much in the way of contact shadows; the lighting is a little bit soft. If we wanted to remedy that a little bit in the scene, we would have to come and, in our Indirect Illumination controls, if we just come up to the top here, you can see, we have this Ambient Occlusion option; we could enable that. Let's just come back to our Environment rollout. You can see we have this color swatch here; this is controlling the color of the lighting in our scene.

We also have this Background swatch; that is controlling the color of our background here. In fact, let's just do a little bit of demonstration for you, to show how you can mix and match colors in here. Let's set something a little unusual in terms of background color, and even more unusual in terms of our light color. So let's make it obvious what is going on here. And again, if we take a second render, you can see, we can very, very easily, very quickly configure how our lighting and background texture are working. Now, of course, in these map slots, we can use texture maps; we can use high dynamic range images for the GI texture override if we want to.

Not necessarily the best way to use high dynamic range images in V-Ray; there is no important sampling attached to this particular system, so this might not make it a good choice for image-based lighting. The V-Ray environment override, then, is a very quick and easy solution for creating global, ambient, or indirect lighting solutions that can be used as a skylight effect. If outdoor lighting setups are something that we're particularly interested in creating, however, especially if we want to create realistic, natural looking daylight for ourselves, well then personally, I would say that this not the best way to work.

I would say that the V-Ray dome light offers a much better skylight solution tools. So let's move swiftly on, and take a look at that particular V-Ray light type in our next video.

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