The dotted lines represent the Source rectangle. Here are a few sample images of the result of applying the warp layer over a checkerboard layer. High values of Horizon make Synfig spend a lot of time rendering and the result is slightly visibly better. From 1.0 to +infinite it renders the points that go in the same direction of the vanishing point.From 0.0 to 1.0 it renders all the points that are backwards on the perspective (in opposite direction to the vanishing point).When checked (boolean) it only maps the pixels which lie inside the 'Source rectangle'.įor infinite layers (gradients, checkerboard, etc.) it define (Real) where to stop rendering the points of the vanishing point. The Bottom Right corner (vertex) of the destination where the source is going to be mapped. The Bottom Left corner (vertex) of the destination where the source is going to be mapped. The Top Right corner (vertex) of the destination where the source is going to be mapped. The Top Left corner (vertex) of the destination where the source is going to be mapped. Combined with Source TL it defined the 'Source rectangle'. The Bottom Right corner (vertex) of the source that is going to be mapped. The Top Left corner (vertex) of the source that is going to be mapped. If source = destination then object is not warped.

Notice that the source rectangle must be centered on the object, to achieve a good effect. To keep the object in place when apply the perspective, you need to set the corners of the perspective destination properly around the object. In a few words it takes a rectangular portion of the resulting render of the layers that are behind it and maps the four corners of the rectangle to four arbitrary points in the plane. The warp layer is a simple but powerful distortion layer. Somes of the screenshots needs to be updated with 0.64.0

Synfig studio warp tool