Some time ago, a user on the US Pinnacle forum wanted to use the PLS-Curl Horizontal transition from HFX 10 - Peels Curls and Waves contained in Volume 1 of Hollywood FX. But this transition wraps Image A from right to left and he wanted to wrap Image A from left to right. Naturally, he tried to reverse the transition in Studio 18. But, as we all know, after Studio 12 this transition inversion in Studio has become illusory. And the new 19.5.0 patch which improves the transitions inversion does not reach there either. We saw in the "The Reverse Transitions in HFX" tutorial how to actually reverse a transition. But this time, even with the tips given in this tutorial, it was an impossible mission.
Step 1: The Reasons It's Impossible
- Open the 10-Peels Curls and Waves folder.
- Load the PLS-Curl Horizontal transition in the tree.
- Select the Horizontal Curl object that supports Image A.
- Examine the basic object properties. You will find that this object has no direction property. Its designer has used the morphing properties to animate the object and only the deformations programmed by the designer are possible.
Note however that Studio 12 knew how to reverse this transition ... So we have to find a solution.
Step 2: Construction of a New Transition That Peels and Unpeels in All Directions
If you have never created a HFX transition, I invite you to watch the "Build your first transition with HFX." tutorial first. You will need to know this to perform the rest of this tutorial.
To create this new transition, you will need to use the Peel plugin. But the 64-bit version included with Studio 18/19 no longer allows using it. We must therefore, once again, avoid this obstacle. The "Adapt Your Hollywood FX (Easy_FX) to Your Needs" tutorial explains how.
- Please do not click the Warps/Plugins folder . . . unless you like crashing Easy_FX.
- Click your new MyPlugin folder instead.
- You can then use the Peel plugin.
In this new transition, the underlying support for Image A will be the High Mesh 1 object.
As Jos Roijakkers explained in his tutorial [ARTCLELINK:26] : When you apply a Warp-effect onto a Flat-object, the results will be disappointing. The reason for this is that this object has a simple structure. For normal effects this will do, but not for a PEEL. The FLAT-object has been created with a limited number of elements (also called polygon’s). The HIGH MESH object has more elements and consequently gives a better result. You can compare the polygons with an invisible lattice pattern. The finer the lattice, the more fluidly the morphing." With a FLAT object, the rolling-up is not continuous and smooth, it is rendered as a series of folds and fractured surfaces.
Step 3: Peel Plugin Setting
- In the new transition tree, click the Peel plugin to access its basic properties.
- Uncheck the Peel % From Transition and Direction from Transition boxes.
- Immediately you will notice that this plugin now has a property that allows setting the Angle of Peel.
- There's also a property for the Peel % and you can even change the radius of the winding.
I think you already understand that by simultaneously playing with the angle settings (for the direction of peeling) and the peel percentage, all the variations are possible if these parameters are accompanied by a keyframe envelope for the percentage of peeling.
If you need a helping hand for keyframes, see the "Build your first transition with HFX" tutorial (Step 5).
Try the following test:
- Select the Peel plugin in the tree.
- Uncheck the % peel and direction of the transition boxes.
- Set the angle of the transition direction to 90°.
- Create a keyframe peeling percentage to 0 at the beginning of the transition and create a keyframe peeling percentage of 100 at the end of the transition.
The Image A will roll from left to right during the transition time.
As you can see, by judiciously using a keyframe envelope for peel percentage and peel angle, you can create all the possible combinations in the same transition.
Step 4: Bonus: Construction of a new dual-peeling transition
An additional possibility is offered by adding a second Peel plugin to the High Mesh 1 object.
Why two plugins? In the previous video, you could see it is possible to successively change the peeling angle in the duration of transition. But if you want to roll up a part of Image A from left to right and simultaneously roll up another part of Image A from right to left, you will need two Peel plugins. To build this new transition, don't start from scratch. It's easier to change your last transition.
- Drag a second Peel plugin to the transition tree below Peel 1. Peel is automatically renamed Peel 2.
- Save your new transition under another new name in your personal folder.
Each Peel plugin can have its own keyframe envelope for the peel percentage as well as its own keyframe envelope for the peel angle. Thus, multiple deformations of Image A are possible.
You now have your custom transition that rolls Image A in all directions and no longer needs to use a hypothetical inversion function transitions ...