0:05 We're going to kick off our bonus course with our finshed model just where we left it in the day time scene in the previous lesson.

0:14 But before getting started with the dusk view, we need to switch our render output settings back to test mode.

0:20 As a reminder, that means turning the interactive settings on...

0:27 making sure our quality is still turned down...leaving 'Denoiser' on...

0:33 Then switching the dimensions to a high of '2000 by 2000' square [pixels], to something smaller like we had before.

0:41

0:42 I was using 450 by 450 [pixels] so I'll use that again.

0:47 The only other setting we want to adjust is to make sure to turn our grass 'Fur' off in the 'Geometries' tab which will help speed up our test renders.

0:58 Now I can kick off a test render to make sure everything looks good...and it does so we're good to keep going from here.

1:10 Our gola for this bonus course, is to get more 'bang for our buck' and to be able to convert this model we have now into a dramatic dusk view...

1:20 while at the same time, keeping all of our daytime settings so we can switch back and forth.

1:27 Here's a preview of the finished dus

1:31 Don't worry if it looks intimidating at this point because it's really not.

1:36 We're going to be repeating most of the same steps as before.

1:40 But this time, a lot of the legwork is done for us from our previous effort.

1:45 So really we'll just be adding a few ne key details like artificial lights.

1:52 Let's just jump right into it.

1:54 By adding an additional Dome Light and HDRI.

1:60 I'll make a copy of the Dome Light we have in our model now.

2:04 And with the new copy still selected, I'm going to 'make it unique'.

2:10 The in the Asset Editor, under Lights...we can see that there are now two Dome Lights with the copy indicated by a '#1'.

2:22 I'm going to rename the copy now by addding '_Dusk' to it in order to make it easier to tell them apart.

2:34 Since we don't want two of the same HDRI files...let's browse to another file that I've included with your exercise files in the 'HDRI' folder.

2:49 Once loaded...reset the intensity back to the default of '1'.

2:55 Now let's test this sunset (dusk) HDRI but first, we're going to have to turn off daytime one.

3:06 Then we'll start up our Interactive Render...

3:15 ...and there it is. What a difference that one little change makes doesn't it?

3:23 And since we made a copy of our previous Dome Light versus adding a new one, the 'Use Transform' option is already checked.

3:34 So if we were to rotate the Dome Light...we can see some variation in the clouds and the direction of the light.

3:46 I think it actually looks pretty good with the pink clouds off to the right side, so I'm going to leave the arrow pretty much facing head on to the cabin.

3:57 So technically we could end the lesson here since this was all we really needed to do to switch from a daytime to a night-time view.

4:06 But I did want to show you a little tip for making it easier to switch back and forth between the two – should you want to render the day or dusk down the road.

4:16 This trick requires three new tags to be created.

4:23 Go ahead and name one of them '(V-)All'...then the next '(V-Day)'...

4:30 and finally...'(V-)Dusk'.

4:34 I like to add a 'V-' prefix to my tags indicating that these tags are specific to V-Ray...

4:41 and therefore they will all stay organized together at the bottom of my tags window.

4:47 So then we can go ahead and assign the 'Day' Dome Light to the 'Day' tag...

4:57 The 'Dusk' Dome Light to the 'Dusk' tag.

5:02 And remember that earlier, we added this Sphere Light here to the middle to brighten up the facade...

5:08 I think that light should show on both the day and dusk view so let's go ahead and move that light to the 'All' tag.

5:20 With our environmental and artificial lights assigned to tags, we can now set up some scenes to control their visibility.

5:29 Create a new scene base off of our current one.

5:35 And then name the one (scene) on the left 'Day'...

5:43 and the one on the right 'Dusk'.

5:48 And then turn the appropriate tags on or for each –

5:54 remembering to leave the 'All' tag on for both...and then update your scenes.

6:02 Don't forget to go back into the Asset Editor and make sure that both Dome Lights are turned on and showing.

6:09 Since we're now using scenes and tags to control visibility, we don't have to worry if both HDRIs are active at the same time.

6:20 Let's go ahead and do one more render to make sure everything is working correctly.

6:25 I'll start with the 'Day' scene.

6:29 I'll give it a second...

6:32 and then switch over to the 'Dusk'.

6:37 And there we have it. Not only was this method super fast for changing the environmental light...