Layout Editor Keyframed Parameters

Enabling keyframes on a node parameter

Some of parameters of the Layout nodes can be keyframed. Such parameters are recognizable by the "Use Keyframes" checkbox that appear on top of the parameter's value in the Attribute Editor panel:


Example of a keyframable parameter named "translate" in the Translate layout node

To use keyframes, simple check the "Use Keyframes" checkbox, and the parameter will change to allow editing the keyframes:

Example of a keyframed parameter named "translate" in the Translate layout node

Editing the keyframes

With the Golaem Layout Editor

The Attribute Editor panel allows to directly add/remove/edit keyframes from a few controls:


Controls of keyframed parameters

Key Frame the frame
Key Value the value at the given frame
Add Key button clicking here will add a keyframe in the list
Remvoe single key button clicking here will remove the keyframe
Clear button clicking here will remove all keyrames except one

With the Maya Graph Editor

When the "Use Keyframes" option of a parameter is checked, the cache proxy automatically create plugs that are connected to maya animation curves:


Example of the animation curves that are automatically created on a cache proxy when using a layout with keyframes


Layout graph that produces the above animation curves

The names of the plug allows to find the node it is connected to. For instance in the above example:

  • "Layout Node Attributes[0]" refers to the node ID 0 in the layout graph
    • "VectorAttributes[0]" refers to the parameter at index 0. In this case it's a vector parameter, so it is named "VectorAttributes" and has 3 curves:
      • VectorAttributeX
      • VectorAttributeY
      • VectorAttributeZ
  • "Layout Node Attributes[1]" refers to the node ID 1 in the layout graph
    • "FloatAttributes[0]" refers to the parameter at index 0. In this case it's a float parameter, so it is named "FloatAttributes"
  • "Layout Node Attributes[2]" refers to the node ID 2 in the layout graph
    • "VectorAttributes[0]" refers to the parameter at index 0. In this case it's a vector parameter, so it is named "VectorAttributes" and has 3 curves:
      • VectorAttributeX
      • VectorAttributeY
      • VectorAttributeZ
    • "VectorAttributes[1]" refers to the parameter at index 1. In this case it's a vector parameter, so it is named "VectorAttributes" and has 3 curves:
      • VectorAttributeX
      • VectorAttributeY
      • VectorAttributeZ

The curves can be manipulated directly within the Maya Graph Editor, and any change should be seen in the layout editor as well.

Note that it is sometimes required to refresh the layout previz by changing the current Maya frame before being able to see the change

From another Maya object

Instead of directly editing the animation curves, it is sometimes convenient to drag the parameter's value directly from a Maya object's position. It is possible to do so by connecting each of the plugs mentioned is the previous section to the transforms plug of Maya objects.

This process can be done automatically by right clicking on the node and clicking on "Create Locators For Keyframed Attributes":


The "Create Locators For Keyframed Attributes" option

This will create a locator named "glmLayoutNodeXXX_YYY" where XXX is the node ID and YYY is the name of the parameter. This locator will already be keyframed with the current frame of the parameter, and will be connected to the cache proxy in such a way that it will drive the parameters of the layout whenever a keyframe is added or deleted from the object cuves:


The locator created from clicking on the "Create Locators For Keyframed Attributes" option


The locator is directly used to drive the layout parameter keyframes values