Learn how to create a matte ground plane in Maya.
- [Instructor] Okay, so now we're going to add a ground plane in to be able to sort of clip out any geometry that goes beneath that ground plane which will just help everything integrate nicely in our composite. So first, let me turn off our track references. These little squares we have in the front here, we don't need to see them right now. So I'm going to select that, and hit control H to disable them. Now I'm going to go under create, polygon primitives, plane, okay. And I'm going to retitle this ground plane in the outliner. Let's go into the attribute editor here and, this is what we're going to do, first off I'm going to scale it up 10,000 units so now it's nice and big.
And we're going to translate it, actually we're going to leave it at zero because we want it to be sort of exactly at the origin at the ground, but we're going to rotate it just so it fits nicely with our view here. So, 78.275, it's rotating there. And now I'm going to hit the W key in the view port and just sort of scoot this thing around, there we go. So now, it's just kind of sits nicely with the building, let's even out these numbers, negative 886, negative 5942 and there we go, okay.
So now, again scrub we can see that we have this plane nicely moving with everything we've got going on. So what we want to do now is we want to assign a material to it, that basically acts at matte. So basically anything beneath this will be clipped out of the frame. This will help both the buildings, and then also sort of with the trees as well 'cause we'll add in some trees that have root systems and stuff below that we don't have to manually go and delete those polygons or whatever, and this will just basically help us clip all that out. So with this selected, I'm going to right-click and say assign new material, and under the redshift area here we will go to surface, and I want to redshift incandescent material.
This can kind of be used as utility material for all sorts of things, right. So I'm just going to title this, Mattes. I'm going make it's color black, I'll apply camera exposure compensation just as sort of by habit, I really do that all the time with this. What we want to do now, is we want to go alpha mode, replace 'cause we want to use this to replace the alpha for everything that intersects beneath this. And I'm going to set the alpha to zero. All right, so now let's just take look at what that looks like now for the renderer. So I'm going to open the redshift render view again.
let me hit play, and now you can see, obviously we turned off the front squares, and you can see that now everything beneath that plane has been clipped out. If I turn off this ground plane, I go back and hit play again in our redshift render view, you can see that those polys are there. So this is just a really great, easy kind of way just to clip anything out beneath a certain surface. Okay, so we're going to turn that back on and now we have seen how to set up this matte ground plane with special redshift material to be able to kind of clip our geometry the way we want it for our composite.
- Importing and tracking footage in After Effects
- Importing an FBX camera into Maya
- Importing footage into Maya
- Setting up sun and sky lighting
- Working with 3D foliage
- 3D rendering
- Compositing in After Effects