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Integrated BIM tools, including Revit, AutoCAD, and Civil 3D
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Professional CAD/CAM tools built on Inventor and AutoCAD
Integrated BIM tools, including Revit, AutoCAD, and Civil 3D
Professional CAD/CAM tools built on Inventor and AutoCAD
Use OSL Composite to layer material maps.
Type:
Tutorial
Length:
5 min.
Tutorial resources
These downloadable resources will be used to complete this tutorial:
Transcript
00:03
To conclude our coverage of materials,
00:06
we're going to create an L CD screen,
00:08
which is going to be kind of complicated involving
00:11
a couple of different maps combined in interesting ways,
00:14
especially using the OS L composite node.
00:18
Let's select the L CD screen.
00:21
We can actually click a couple of times
00:23
in the area of the screen,
00:25
click the first time and you'll select the display glass,
00:29
click again in the same location and you'll select the display L CD object
00:34
and then isolate that selection.
00:36
And let's do an Arnold rendering
00:39
with focus on the perspective view,
00:41
go to Arnold Arnold render view
00:43
and initiate an interactive production rendering.
00:47
Here it is with just a neutral gray standard service applied.
00:50
Now, let's open up the material editor.
00:54
And here we see a partial graph.
00:56
I've got a couple of noise maps I've prepared in advance
01:01
that will supply the pattern
01:02
on the background of the L CD screen.
01:05
We also have the network we created in a previous movie
01:09
which is a layer shader for the buttons.
01:12
We're going to be using this vector map node
01:14
in the network that we create now. So
01:17
I've left that here. So we can just use that same map and not have to recreate it.
01:21
We won't be using the material map browser anymore. So just to save space,
01:25
we can close that
01:26
we can click on the button on the material editor toolbar to hide or show that
01:31
with the display L CD object still selected. Let's graph its network
01:35
from the slate material editor menus choose material
01:39
get from selected
01:41
and here is the standard surface. We can move that
01:45
and navigate with the middle mouse button,
01:47
bring that around
01:48
and maybe zoom in with control alt and middle mouse button.
01:52
We want to connect something to the base color.
01:55
So drag out from that base color, release the mouse from the pop up menu.
02:00
Choose OS L
02:02
compositing
02:04
composite.
02:06
Then we get another pop up menu from which we need to choose which output to connect.
02:11
Let's choose out which is the color output.
02:15
And we don't see much change.
02:17
If we change the top layer RGB,
02:19
we'll see what happens here.
02:21
So you've got a top layer and a bottom layer to the composite map
02:26
with that map selected. Let's rename it.
02:28
We'll call it L CD base color.
02:30
This base color is going to be separated into basically two elements,
02:35
the lettering or the graphics and the background.
02:38
And to make that separation or mask, we'll use the vector map,
02:43
connect the vector map output
02:46
to the top layer alpha
02:48
of the L CD base color.
02:51
Then in that composite nodes parameters,
02:53
we can change the bottom layer R GB,
02:56
let's bring its value down to zero.
02:58
And now we see we've got a top layer which is gray and a bottom layer which is black,
03:04
but it's not perfectly black
03:05
because we do have a specular component to our material. If we select that material,
03:11
we'll see we have a specular roughness of 0.5
03:14
and a specular color weight of one
03:18
with a specular color of white.
03:21
I want these elements, these graphics here to render as perfectly black.
03:25
So I can map this specular color.
03:28
Let's make a duplicate of this L CD base color composite node,
03:31
hold down shift and drag to make a duplicate
03:35
and that preserves the connection to the vector map
03:38
with that new composite node selected,
03:40
we'll rename it,
03:41
we'll call it L CD specular color,
03:45
connect its output to the specular color of the material
03:49
and select that hoss
03:50
cell composite node
03:52
and we can test
03:53
it. If we change the bottom layer R GB increase that up to white,
03:57
we'll see a kind of gray color in the lettering,
03:60
bring that down to black
04:02
and we see
04:03
a solid black color.
04:05
All right, we can also increase the top layer R GB up to white.
04:09
So back to the L CD base color or the background.
04:13
I've got a couple of noise maps prepared here.
04:16
Let's just see what those look like temporarily.
04:18
If we connect L CD noise large to the base color of the standard surface.
04:23
We'll see that. I've created a noise map that's got some purple and magenta colors.
04:28
If we select that map, we can see those colors here.
04:31
We've also got the small noise
04:34
connect that to the base color just temporarily
04:37
and that's a noise pattern with a smaller scale
04:39
to simulate the grain of an L CD screen.
04:42
OK. Let's reconnect the L CD base color
04:46
to the base color of that standard surface.
04:49
To combine these two noise maps, we can use an Arnold multiply node
04:53
that'll be connected to the top layer of the L CD base color node.
04:57
So drag out from that top layer
04:60
and choose Arnold
05:02
math
05:03
multiply
05:05
and then connect the two noise maps to the inputs of that multiply node.
05:11
And now those are combined
05:12
and we see them in the background here.
Video transcript
00:03
To conclude our coverage of materials,
00:06
we're going to create an L CD screen,
00:08
which is going to be kind of complicated involving
00:11
a couple of different maps combined in interesting ways,
00:14
especially using the OS L composite node.
00:18
Let's select the L CD screen.
00:21
We can actually click a couple of times
00:23
in the area of the screen,
00:25
click the first time and you'll select the display glass,
00:29
click again in the same location and you'll select the display L CD object
00:34
and then isolate that selection.
00:36
And let's do an Arnold rendering
00:39
with focus on the perspective view,
00:41
go to Arnold Arnold render view
00:43
and initiate an interactive production rendering.
00:47
Here it is with just a neutral gray standard service applied.
00:50
Now, let's open up the material editor.
00:54
And here we see a partial graph.
00:56
I've got a couple of noise maps I've prepared in advance
01:01
that will supply the pattern
01:02
on the background of the L CD screen.
01:05
We also have the network we created in a previous movie
01:09
which is a layer shader for the buttons.
01:12
We're going to be using this vector map node
01:14
in the network that we create now. So
01:17
I've left that here. So we can just use that same map and not have to recreate it.
01:21
We won't be using the material map browser anymore. So just to save space,
01:25
we can close that
01:26
we can click on the button on the material editor toolbar to hide or show that
01:31
with the display L CD object still selected. Let's graph its network
01:35
from the slate material editor menus choose material
01:39
get from selected
01:41
and here is the standard surface. We can move that
01:45
and navigate with the middle mouse button,
01:47
bring that around
01:48
and maybe zoom in with control alt and middle mouse button.
01:52
We want to connect something to the base color.
01:55
So drag out from that base color, release the mouse from the pop up menu.
02:00
Choose OS L
02:02
compositing
02:04
composite.
02:06
Then we get another pop up menu from which we need to choose which output to connect.
02:11
Let's choose out which is the color output.
02:15
And we don't see much change.
02:17
If we change the top layer RGB,
02:19
we'll see what happens here.
02:21
So you've got a top layer and a bottom layer to the composite map
02:26
with that map selected. Let's rename it.
02:28
We'll call it L CD base color.
02:30
This base color is going to be separated into basically two elements,
02:35
the lettering or the graphics and the background.
02:38
And to make that separation or mask, we'll use the vector map,
02:43
connect the vector map output
02:46
to the top layer alpha
02:48
of the L CD base color.
02:51
Then in that composite nodes parameters,
02:53
we can change the bottom layer R GB,
02:56
let's bring its value down to zero.
02:58
And now we see we've got a top layer which is gray and a bottom layer which is black,
03:04
but it's not perfectly black
03:05
because we do have a specular component to our material. If we select that material,
03:11
we'll see we have a specular roughness of 0.5
03:14
and a specular color weight of one
03:18
with a specular color of white.
03:21
I want these elements, these graphics here to render as perfectly black.
03:25
So I can map this specular color.
03:28
Let's make a duplicate of this L CD base color composite node,
03:31
hold down shift and drag to make a duplicate
03:35
and that preserves the connection to the vector map
03:38
with that new composite node selected,
03:40
we'll rename it,
03:41
we'll call it L CD specular color,
03:45
connect its output to the specular color of the material
03:49
and select that hoss
03:50
cell composite node
03:52
and we can test
03:53
it. If we change the bottom layer R GB increase that up to white,
03:57
we'll see a kind of gray color in the lettering,
03:60
bring that down to black
04:02
and we see
04:03
a solid black color.
04:05
All right, we can also increase the top layer R GB up to white.
04:09
So back to the L CD base color or the background.
04:13
I've got a couple of noise maps prepared here.
04:16
Let's just see what those look like temporarily.
04:18
If we connect L CD noise large to the base color of the standard surface.
04:23
We'll see that. I've created a noise map that's got some purple and magenta colors.
04:28
If we select that map, we can see those colors here.
04:31
We've also got the small noise
04:34
connect that to the base color just temporarily
04:37
and that's a noise pattern with a smaller scale
04:39
to simulate the grain of an L CD screen.
04:42
OK. Let's reconnect the L CD base color
04:46
to the base color of that standard surface.
04:49
To combine these two noise maps, we can use an Arnold multiply node
04:53
that'll be connected to the top layer of the L CD base color node.
04:57
So drag out from that top layer
04:60
and choose Arnold
05:02
math
05:03
multiply
05:05
and then connect the two noise maps to the inputs of that multiply node.
05:11
And now those are combined
05:12
and we see them in the background here.
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