Create and organize group nodes, create and assign a material to a material group node, and use a switch node to manage geometry variants within the VRED Scenegraph.
Transcript
00:03
Autodesk VRED Professional offers a variety of node types within the Scenegraph, each with unique functionality.
00:12
With a scene open in VRED, from the Quick Access bar, click Graph to open the Scenegraph.
00:20
Then, right-click and select Create to access the available nodes.
00:25
You can use a group node to select and transform a group of objects all at once.
00:31
When any object within a group is transformed, its node changes to a transform node.
00:37
However, if a group node is selected and transformed, it automatically changes to a group transform node.
00:45
In this example, tires and wheels will be grouped to structure the data more efficiently.
00:51
Then, a material group will be created to illustrate its use.
00:57
To start, create two group nodes.
01:00
In the Scenegraph, right-click and select Create > Group,
01:07
then rename the new group—in this case, to “Rim”.
01:12
Create a second group named “Tire”.
01:16
In the Search field, enter “Wheels” to locate this group.
01:21
Drag and drop the two new groups into the Wheels group to subordinate them.
01:26
Next, in the search field, enter “Tires”.
01:31
Then, drag and drop the selected results into the Tire group.
01:37
Repeat this process for Rims.
01:40
Collapse some of the nodes to simplify your view in the Scenegraph.
01:44
Next, create a material group node.
01:49
With the Wheels group node selected, right-click and select Create > Material Group.
01:57
Then, drag and drop the Tire group into the Material Group to subordinate the Tire group.
02:04
A material group node transfers the materials assigned to it to all subordinated objects.
02:10
The original material of the geometry is suspended but not deleted.
02:15
To see how this works, create a material and assign it to the group node.
02:21
From the Quick Access bar, click Materials.
02:26
In the Material Editor, right-click a material in the preview and select Create Material > Plastic.
02:35
Leave the material in its raw state.
02:39
To assign this new material to the group node, first, in the Scenegraph, hide any unnecessary geometry by deselecting the appropriate nodes.
02:49
Then, from the Material Editor, drag and drop the material into the Material Group.
02:57
Observe the tire material changing to the newly assigned plastic material.
03:02
To undo this change, simply remove the Tire group from the material group by dropping it into the Wheels group.
03:11
Now that it is no longer subordinated, the original geometry-assigned material is used.
03:18
Close the Material Editor, and in the Scenegraph, reveal the hidden geometry.
03:24
Next, explore the use of the switch node to control geometry visibility by switching between variants.
03:32
This node sets one subordinate object, or child, to be visible while rendering the others invisible.
03:40
In this example, a wheel variation is already imported and a switch node will be created for the front left wheel.
03:49
In the Scenegraph, select the Wheels group node, then right-click and select Create > Switch.
03:59
Rename the node to “Rim_Switch_FL”.
04:04
Next, to locate the FL Rims, select the Rim group node.
04:11
Next to the search bar, select Search in Selection, type “FL” into the search field, and then press ENTER.
04:21
Drag and drop the found FL Rims into the new switch node.
04:26
Expand the Multispoke group,
04:29
then drag and drop the FL Rims into the switch as well.
04:34
Expand the switch to see that both rims are now subordinated to the switch.
04:40
Now, use the Variants module to specify which variation to display.
04:46
From the Menu Bar, click Scene and select Variants.
04:53
The Variants dialog opens.
04:56
From the Scenegraph, drag and drop the switch node into the Variants dialog.
05:04
From the list of variants, select the switch node to display its properties.
05:10
To switch between variations, double-click the desired variation from the State list.
05:16
Notice that the currently selected variation is displayed in the Viewport
05:20
and is also selected in the Scenegraph, while the other remains hidden and deselected.
05:27
Now you can use group nodes, material group nodes, and switch nodes in the Scenegraph to help configure your VRED scene.
00:03
Autodesk VRED Professional offers a variety of node types within the Scenegraph, each with unique functionality.
00:12
With a scene open in VRED, from the Quick Access bar, click Graph to open the Scenegraph.
00:20
Then, right-click and select Create to access the available nodes.
00:25
You can use a group node to select and transform a group of objects all at once.
00:31
When any object within a group is transformed, its node changes to a transform node.
00:37
However, if a group node is selected and transformed, it automatically changes to a group transform node.
00:45
In this example, tires and wheels will be grouped to structure the data more efficiently.
00:51
Then, a material group will be created to illustrate its use.
00:57
To start, create two group nodes.
01:00
In the Scenegraph, right-click and select Create > Group,
01:07
then rename the new group—in this case, to “Rim”.
01:12
Create a second group named “Tire”.
01:16
In the Search field, enter “Wheels” to locate this group.
01:21
Drag and drop the two new groups into the Wheels group to subordinate them.
01:26
Next, in the search field, enter “Tires”.
01:31
Then, drag and drop the selected results into the Tire group.
01:37
Repeat this process for Rims.
01:40
Collapse some of the nodes to simplify your view in the Scenegraph.
01:44
Next, create a material group node.
01:49
With the Wheels group node selected, right-click and select Create > Material Group.
01:57
Then, drag and drop the Tire group into the Material Group to subordinate the Tire group.
02:04
A material group node transfers the materials assigned to it to all subordinated objects.
02:10
The original material of the geometry is suspended but not deleted.
02:15
To see how this works, create a material and assign it to the group node.
02:21
From the Quick Access bar, click Materials.
02:26
In the Material Editor, right-click a material in the preview and select Create Material > Plastic.
02:35
Leave the material in its raw state.
02:39
To assign this new material to the group node, first, in the Scenegraph, hide any unnecessary geometry by deselecting the appropriate nodes.
02:49
Then, from the Material Editor, drag and drop the material into the Material Group.
02:57
Observe the tire material changing to the newly assigned plastic material.
03:02
To undo this change, simply remove the Tire group from the material group by dropping it into the Wheels group.
03:11
Now that it is no longer subordinated, the original geometry-assigned material is used.
03:18
Close the Material Editor, and in the Scenegraph, reveal the hidden geometry.
03:24
Next, explore the use of the switch node to control geometry visibility by switching between variants.
03:32
This node sets one subordinate object, or child, to be visible while rendering the others invisible.
03:40
In this example, a wheel variation is already imported and a switch node will be created for the front left wheel.
03:49
In the Scenegraph, select the Wheels group node, then right-click and select Create > Switch.
03:59
Rename the node to “Rim_Switch_FL”.
04:04
Next, to locate the FL Rims, select the Rim group node.
04:11
Next to the search bar, select Search in Selection, type “FL” into the search field, and then press ENTER.
04:21
Drag and drop the found FL Rims into the new switch node.
04:26
Expand the Multispoke group,
04:29
then drag and drop the FL Rims into the switch as well.
04:34
Expand the switch to see that both rims are now subordinated to the switch.
04:40
Now, use the Variants module to specify which variation to display.
04:46
From the Menu Bar, click Scene and select Variants.
04:53
The Variants dialog opens.
04:56
From the Scenegraph, drag and drop the switch node into the Variants dialog.
05:04
From the list of variants, select the switch node to display its properties.
05:10
To switch between variations, double-click the desired variation from the State list.
05:16
Notice that the currently selected variation is displayed in the Viewport
05:20
and is also selected in the Scenegraph, while the other remains hidden and deselected.
05:27
Now you can use group nodes, material group nodes, and switch nodes in the Scenegraph to help configure your VRED scene.
