Darby Edelen
Forum Replies Created
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Several formats are assumed to be HDTV 709 because they are defined to use that profile. However, that doesn’t mean the colors will necessarily be right (color managed workflows can go south quickly if a user or application takes a wrong turn).
If you need to force a profile on the footage you can use the Utility > Color Profile Converter effect. Keep in mind, though, that even after reinterpretation via this effect the colors will always end up in your working space.
What are you using as your working space? By default AE will use the working space as the output profile but you can specify a different output profile in the output module.
Darby Edelen
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It’s not entirely clear what specific behavior you’re after that lead you to approach the problem the way you did, so I apologize if this isn’t helpful, but I’d recommend using a modulus operator to loop instead:
loop_value = 5000;
zpos = (time*2000) % loop_value;value + [0,0,zpos]
Darby Edelen
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Another thing to take a look at is how your alpha is being interpreted in after effects. The bright spots at the edges of your objects look like an improper interpretation.
I’ll also add that the best way to do a multipass composite in AE is to blend all of the unpremultiplied layers with full alpha (e.g. Since you’re using a straight alpha you could set Alpha to Full On in the shift channels effect) and then apply the alpha to that composite. I often use a layer at the top of the composite with the stencil alpha blend mode to do that.
If you blend all the layers together with their alphas enabled you’ll end up with incorrect rgb values along the edges of the alpha.
Darby Edelen
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This looks a lot like an example scene provided in the years old keylight documentation. You can find the user guide on this page:
https://www.thefoundry.co.uk/support/user-guides/
The example I’m referring to is on page 56.
They use the alpha bias to weight the screen toward green. There’s more information about this on pages 22 and 23.
No guarantees this will do the trick but it’s something to try.
I’d also fiddle with the screen balance to see if that improves things.
Darby Edelen
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Yes, that’s a pretty good analogy.
The anchor point is always in layer space and it’s position is either in world space or it’s parent’s layer space (if it is parented).
I should also confess that the term “layer space” may not be standard. I like to use it to differentiate from world and comp (screen) space but I’m not sure that it’s used in official documentation.
Darby Edelen
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You’re viewing a 3D layer with a 2D effect applied that is simulating a 3D effect, so it’s not rendering in perspective properly. In addition, the toComp() expression converts a world space point (3d point) to a 2d location in comp space. The effect position is in layer space and not comp space.
If you apply the effect to a comp sized adjustment layer above the 3D layer you should get the results you’re after.
Alternatively you could pre-compose the 3D layer with “Leave All Attributes” enabled, go into the pre-comp and enable the 3D layer switch, then go back into the main comp and enable the collapse transformations switch.
Darby Edelen
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Apologies, I didn’t realize it was a template. I assumed you had setup the shy layers and knew where they were.
Darby Edelen
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If I’ve understood everything, and if the shape layer serving as a matte isn’t animated, I’d parent the text layer to its matte layer and then scale/position the matte.
If I were starting this fresh then I’d probably parent the shape layer and the text to the same null. Then I’d use that null to move and scale the layers when I want them to retain their relative transforms.
Darby Edelen
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The way you’ve described this it sounds like you want the text source to control a checkbox? I’d expect things to go the other way around generally.
At any rate, you’d need to check the value of the source text on each checkbox:
(thisComp.layer("MyText").source Text == "Hello!")This should enable the checkbox if the MyText source text is Hello! Of course if the user enters hello? it wouldn’t match.
I haven’t checked the above code, there may be a small piece missing.
Darby Edelen
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Whoa, let’s all relax 🙂
The Color Profile Converter and Apply Color LUT effects work just fine to preview in any profile or LUT you like.
You can add any ICC profiles you like to AE by placing them in the appropriate OS folder.
It may not be the workflow you want it to be, but it’s all there.
Darby Edelen