MadMapper GridWarping tutorial

This tutorial will teach you how to use the powerfull Grid Warping feature in MadMapper.

STEP #1:
Launch MadMapper.
Load up a picture by Drag and Dropping it in the media bar on the left.
It will automatically be listed in the Image section. Double click it in the list
and it will appear in the Input View.

STEP #2:
Switch to the Surface tab.
Create a Quad primitive: a four-corner quad is automatically created when you press the icon.

STEP #3:
Now maximize the Preview Output, by either clicking the icon:

or going to the View menu, selecting Preview Output
This will give you more screen real estate to actually manipulate your grid.

STEP #4:
In the inspector section, enable the Grid Warping of the Quad.
You can set how many grid subdivision you need in the X and Y axis.
Here I’ve set it to 7 by 7 subdivisions.

STEP #5:
You can now deform the grid mesh by moving each handle located at the grid intersection.
This will modify the Grid mesh and change the way your image is displayed.

Here’s a snapshot of the actual output:
(note that the interpolation is linear in this version of MadMapper)

STEP #6:
While the Grid Warping is enabled, you can still modify the main corners of the Quad
(shown in bigger handles at the corners), changing the perspective but keeping your grid deformation !
You can also scale and rotate the quad using the specific handles.