get coords from mouse pointer

paooolino · Post by **paooolino** » Wed Jun 03, 2009 8:59 am

let us have a flat terrain, this terrain is a scene node containing a mesh.

I'd like to subdivide all (or a part) of this terrain in a grid of cells, so when I roll the mouse over the terrain I can highlight the cell the mouse is in.

How can I do that? How to get the coordinates of the collision point (relative to the terrain mesh) between the ray beginning from the mouse and the terrain mesh?

thankyou

sp00n · Post by **sp00n** » Wed Jun 03, 2009 9:45 am

if you have a triangles (or planes) your terrain contains then you can use getIntersectionWithLine method. In params will be based on mouse coords.

paooolino · Post by **paooolino** » Wed Jun 03, 2009 8:38 pm

thankyou, good advice