Name: Blender 2.8 烘焙相機貼圖投影紋理教程 (Blender 2.8 Bake camera mapped projected texture tutorial)
Uploaded: 2021-01-14T08:24:05.000Z
Duration: 20 min 13 s
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Hey guys welcome back to another blender 2.8 tutorial.

未來進行式

Today I'm going to be showing you how to do some camera mapping but also how to bake in

the textures from that camera projection.

So I have this photo that we're going to be using for this tutorial.

We have essentially what is a box and then a bunch of stuff in the background.

And the main idea is we're going to do some camera mappIng.

So we're going to have a camera over here.

And then a box that you know pretty much matches this box.

We are going to project this image from the perspective of that camera on to that box.

But then the new step is we want to have this box have any custom uv map we want.

And then we want to bake the textures onto that uv unwrap.

So unlike the projection, here we're going to have a custom uv map and bake it on to

So again, the first step is to do some camera mapping.

And I did cover this in a previous tutorial.

If you want the full details there is a link in the description to the full tutorial for

We're going to open up fspy to get the camera in the correct perspective.

And then we just need to match up our x and y axes.

So I'm going to turn off dim image so we can actually see what we're doing.

We can have the y axis be along here and then the x axis be along here.

Which is going to be really easy to set up because of course we have this box.

I'm just going to grab this handle and hold shift to get this zoomed in perspective.

So again handlebar and then hold shift to get that zoomed in mode.

And then of course we need 2 of these so it makes sense to have one y axis going here

We know they're parallel because they're part of the same box.

And then for the x axis same thing but in this direction.

Again I'm doing this very quickly because I did cover it before.

But I just want to make sure these fundamentals are still here.

And then once we're happy with this we can turn on our 3d guide and set it to xy.

Because you know x and y axis. xy grid floor.

And then we're going to take what's going to be the world origin in blender.

We're going to take it and then just move it down to the corner.

Holding shift so we can see what we're doing.

So when we import this into blender we're going to get a scene with this background

and then the world oriented correctly with this camera in the right perspective.

And then the origin is going to be in this corner.

And then I'm just going to call this projection.

And we're going to import this into blender.

So I'm going to open up blender and of course you also need the plugin which again is free.

All this is covered in the first tutorial.

And I'm just going to keep this cube right here.

And then just navigate to wherever you have it.

And then you know the world origin is in the corner of the box.

So the first thing we're going to do is we're going to save with control s.

And let's call this thing, let's call it bake camera projection.

Because you know this is what this tutorial is about.

Background images and make this brighter.

And then the first thing to do is to take this box and align it so that it matches with

So I'm going to take the corner, which should be this corner.

And put it in the corner of our main box in the image.

And luckily we have this set up very nicely.

All keyboard shortcuts are going to be up here.

And let's see if that did what we wanted.

So of course we need this to be wider longer and taller.

And then we just move this until it seems right.

Take this face and then move it down the y axis.