Dissolve NodeThe Dissolve node performs a cross-dissolve from the A image (top input) to the B image (bottom input). The dissolve is calculated by multiplying the A image by the dissolve value (V), and adding the result to the B image multiplied by (one minus the dissolve value):
Dissolve Parameter Tab![]() DissolveIn the Dissolve parameter, the value you specify controls the transparency of the A image: a value of 0 represents a complete dissolve to the B image, a value of 0.5 is a 50% dissolve, and a value of 1 represents no dissolve from the A image. Animating the Dissolve ValueYou can use the STED functionality associated with the Dissolve parameter to control the rate of dissolve over time, or to change the flow of the cross-dissolve such that the B image dissolves into the A image. In the STED, a single function segment in the graph represents the entire dissolve operation by showing the A image transparency throughout the frame range. To cross-dissolve evenly from image A to image B, for example, at the first frame the A image is at maximum value (opaque). You would typically use a linear function to bring the A image evenly from maximum value at frame 1 to the minimum value at the final frame. Of course, different functions can be applied to create pulsating or other effects. On the other hand, if the A image is set at 0.5 transparency uniformly across the graph, the result would be a composite image where both inputs were 50% transparent throughout the range of frames.
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