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Showing posts from July, 2014

Color Keying In After Effects

01          In this lesson we will learn how to do Color Keying inside After Effects. We will go through the different stages of keying out the green screen or a green background from a footage. Open up the Color Keying 01 after effects file from the projects file folder. In the scene we have our actor in the center of a green screen along with some elements outside of the green screen that we don't want to show in the scene.

02          Before applying the green screen filter we will try to reduce the amount of work that it has to do, like in this case to get rid of the variations in the colour of the green background and the objects outside of the green screen. So in order to do that we will draw a loose Garbage Mask feathered at 20 pixels around the area which we want to get rid of. We will then animate it over the length of the shot so that we can make sure that we get only the things that we want to keep in the shot.

03          Once we are ready with the Garbage Mask around…

Projection Mapping in After Effects

In this lesson we will learn how to project a still image onto 3D Geometry in After Effects. We can then introduce some camera move into the scene to make it look like we are actually in the 3D Space. Irrespective of the limitations in the camera movement with this trick, we can create some dynamic camera moves which can bring life to the boring still images.

01          Create a new composition by dragging and dropping the footage of the Street provided in the footage folder onto the ‘New Composition Button’. This will create a new composition depending on the resolution and size of the ‘Street’ footage. Rename the footage layer as ‘Reference’ and make a duplicate of it with the name ‘Projection’.

02          Now we will create a 3D geometry in the scene for which we will bring in a new ‘Solid Layer’ (White) and rename it as ‘Floor’. Apply a 'Grid' effect on to the solid layer in order to make the layers at the back visible. Change this Solid Layer into a 3D Layer and place …

Stabelizing a Handheld Camera Shot in After Effects

Stabilizing can be defined as a process where motion tracking data from a shot is registered for removing the camera motion from it. In this process an object's movement in the shot is tracked and then each frame is re-positioned accordingly to hold the picture steady. But as the frames are re-positioned in order to hold the picture steady the edge of the picture move into the frame, leaving a black margin where the picture used to be. We can solve this problem by scaling up the size of the footage in order to push out the black margin from the edges of the footage.

01          Before starting the tracking procedure always make sure to go through the footage and look for good a tracking target that stays in the frame till the end. The best Tracking Targets should have good contrast and a clearly defined shape with distinct edges that stays the same throughout the shot. We also need to make sure that our Tracking Targets are not getting obscured by another object in the scene. For…