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Project Mesh on Mesh:

The "Project Mesh on Mesh" Button will project any mesh or mesh vertices onto another mesh while keeping the projected meshes volume. There are a couple different ways in which you can project a mesh onto another mesh. You can do it either by its local Y rotation, or on any axis plane.

The projection happens by using the lowest found selected vertex or objects vertex based on the axis selected to control the volume maintenance. This means that you will probably get the best results by having the bottom plane be as flat at possible.

Select the Mesh or vertices on the Mesh that you want to project, and shift select the object you want to project onto. Then click the Project Mesh on Mesh button to do the projection. This function is extremely fast and can handle hundreds of thousands of polygons.. so have fun with it! Some examples below

NOTE: You can also project meshes that do not have volumes such as a simple plane.

Examples:

Here is a box that is getting projected onto a face. Notice how the box maintains the volume of the box after it has been projected.

Some other angles

This is the object moved off of the face. You will notice how it creates an impression from one side and an extrusion on the other.

Here is another example of projecting a box onto a sphere based off of its local Y rotation. The box was oriented in the direction of wanted projection.

Notice how the box maintains its volume while projecting onto the surface of the sphere.

Here is another example using the same box and sphere. In this example, I selected vertices that I want to project onto the sphere instead of the whole box.

This is the result. Only the vertices selected will project and maintain its volume.

Another example of projecting a big box on a torus to create an impression.

The resulting projection and impression created.

This shows the other side of the box. Because it projected onto the torus and maintained the volume, one side looks extruded while the other imprinted.

Another example of a bit more complex pieces.

Notice how some of these get a bit warped because of the rotation axis relative to the sphere.

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