after effects use Ellipse tool to create a mask shape
after effects use Ellipse tool to create a mask shape
Masks are used in After Effects to hide parts of your video in such a way that ... could use to create the mask, such as the "Pen" tool or any of the shape tools. For example, you could select the "Ellipse" tool and draw an ellipse on the screen.
01 Open After Effects and create a new composition (Cmd/Ctrl+N). Choose any settings you're comfortable with – I've used HDTV 1080 25 with a duration of 4 seconds. Next select the Pen tool and draw out a shape. In this case I opted for some typography. Alternatively you can import shapes from Illustrator, or take the easy route and just use the Text tool.
02 Once you've finished drawing your shapes or typography, make them into a 3D layer by clicking the empty boxes underneath the Cube icon to enable 3D. Now bring up the composition settings (Cmd/Ctrl+k). Under the Advanced tab you'll see a drop-down menu. Change the renderer from Classic 3D to Ray-traced 3D. Click the Options button to bring up the quality settings. This is where render times can really stack up. I'd recommend working with low quality settings (Ray-tracing Quality: 4, Anti-aliasing Filter: Box) but changing them for higher settings when it comes to your final render.
03 Now go back to your composition. Under your shape layers settings you will notice a new heading called Geometry Options – it's here that we can extrude shapes. Click Extrusion Depth and set it to around 200.
04 If you look at your shape's extrusion, you'll notice it just looks like a black solid without much definition. That's because we need to add a light into the scene. To do this, go to Layer>New>Light. Remember though, more lights mean longer render times. In the Light Settings panel, choose your settings from the various options – I've gone for a Spot light type. Make sure you check the Cast Shadows tick box too, otherwise your shapes won't have any shadow. You can alter the Shadow Diffusion value to change the sharpness of the shadows.
02 Once you've finished drawing your shapes or typography, make them into a 3D layer by clicking the empty boxes underneath the Cube icon to enable 3D. Now bring up the composition settings (Cmd/Ctrl+k). Under the Advanced tab you'll see a drop-down menu. Change the renderer from Classic 3D to Ray-traced 3D. Click the Options button to bring up the quality settings. This is where render times can really stack up. I'd recommend working with low quality settings (Ray-tracing Quality: 4, Anti-aliasing Filter: Box) but changing them for higher settings when it comes to your final render.
03 Now go back to your composition. Under your shape layers settings you will notice a new heading called Geometry Options – it's here that we can extrude shapes. Click Extrusion Depth and set it to around 200.
04 If you look at your shape's extrusion, you'll notice it just looks like a black solid without much definition. That's because we need to add a light into the scene. To do this, go to Layer>New>Light. Remember though, more lights mean longer render times. In the Light Settings panel, choose your settings from the various options – I've gone for a Spot light type. Make sure you check the Cast Shadows tick box too, otherwise your shapes won't have any shadow. You can alter the Shadow Diffusion value to change the sharpness of the shadows.
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