Let’s say I create a plane such as (this is off the top of my head, so please forgive typo’s):

And then I decide I want the plane to be 200 x 100, what is the best way to resize the existing plane?

Currently, I remove the plane, create a new one of the proper size, and then re-add it to the scene.  The problem is, I am doing this 60 times per second and garbage collection doesn’t have time to kick in and my memory creeps skyward.  Not to mention that it’s extremely inefficient.

I figure I probably need to access the subGeometry of the mesh, but I’m not quite sure how to go about doing that.

Thanks for any help/pointers you can give!
—Rob

so… what would be the problem to resize the geometry itself?

planeGeometry.width= 200;

or

PlaneGeometry(planeMesh.geometry).width= 200;

Im not sure how efficient it is to rearrange the vertices, but I am sure its better than recreate a new one.

Just make one geometry, ‘mysavedGeometry’. make it 1x1.
for each new plane, just make new Mesh(mysavedGeometry, material);
then simply do mesh.scaleX = 200; same for scaleY

By having a size of 1x1, each new plane gets the size you need by multiplying the size 1 by your factor (the expected size). no need to alter vertices, no percent ratio required.

Fabrice Closier - 25 April 2014 02:59 PM

Just make one geometry, ‘mysavedGeometry’. make it 1x1.
for each new plane, just make new Mesh(mysavedGeometry, material);
then simply do mesh.scaleX = 200; same for scaleY

By having a size of 1x1, each new plane gets the size you need by multiplying the size 1 by your factor (the expected size). no need to alter vertices, no percent ratio required.

Beautiful and elegant Fabrice.  Your solution worked flawlessly!  Thank you so much. 

I can see definitely need to spend more time thinking outside of the box..