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Transcript
00:02
We're going to have a look at the Subdiv Insert tool
00:06
and I'll start with these Insert mode settings
00:09
and I'll just use this hood with the indented scoop area.
00:15
So the Parallel option has Pick Edge Loop selected, which is normally what you want.
00:20
And if the controls aren't already displayed,
00:22
then the first click will display them.
00:24
So I can then just click on one edge
00:27
and then drag as far as the next edge loop in either direction.
00:32
So I'll just undo that
00:34
and then with Perpendicular instead you click on
00:37
an edge to insert a new loop across it
00:40
and you get the same results when there's a simple flow of quads.
00:46
But where the topology is more complex like the five edges here in this corner
00:50
or the three down here,
00:52
then we can get different results.
00:55
When you use Parallel, it's limited to a simple edge loop up to a complex junction.
01:00
So here I would have to insert twice to get another loop
01:04
on the edge of the scoop.
01:06
But if I undo those, what Perpendicular allows me to do
01:09
is work across that whole inner edge in one go.
01:13
So I can add in a loop at the top
01:15
and another one lower down.
01:17
So both modes can be really useful.
01:19
And you can see that inserting brings the limit surfaces
01:22
closer to the control cage for a tighter shape.
01:26
So next, I'll look at the Offset mode with Relative and Parameter settings.
01:32
On this roof, I've got just one face loop that's across the center line.
01:37
So if I wanted to split that with an Insert,
01:41
and I'll just stick with Perpendicular,
01:44
you can see that this Parameter value goes from around 0 to 1.
01:49
So if I want to insert exactly at the center,
01:51
then because it's symmetrical, I can type in 0.5 in the tool window.
01:56
And that means I could delete these faces for example
01:59
and just go back to one half of the roof.
02:04
So that was the Relative mode
02:06
and I'll switch back to Parallel now as it's got this Both option.
02:11
So if I click here and drag,
02:12
you can see the Relative option gives
02:14
me quite different offset distances on both sides
02:17
because it's relative to the face length.
02:21
If I undo that and switch to Distance
02:24
and then do exactly the same.
02:26
You can see that the offset is now an equal distance on both sides.
02:31
So I'm just gonna put that back to Single because in practice,
02:34
I probably use Bevel instead,
02:38
but this offset mode also affects the angle of the insertion.
02:41
And I can show this on the wheel arch.
02:45
So the Distance setting keeps this initial angle constant,
02:48
and so it can distort the layout a bit,
02:52
whereas Relative adjusts the angle of the flow between the edges as it goes along.
02:58
And that's why Relative is the default setting.
03:02
So undo those and have a look at the last option which is Edge Flow.
03:06
But first, I'm going to copy and paste
03:09
and then Template so that we can compare any changes to the original.
03:13
So the default is without Edge Flow.
03:16
And here the control cage is kept the same
03:19
and it's simply split.
03:21
But if I turn Edge Flow on,
03:22
then the control cage is now modified to try
03:25
to maintain the curvature shape of the limit surfaces.
03:29
So if we shade those, you can see that it's resulted in a flatter shape
03:33
when I haven't got Edge Flow
03:35
and with Edge Flow on, it's moved further out and it's rounder.
03:40
But in practice,
03:41
you're probably going to pick those new inserted edges and
03:44
move them around until you get the shape you want anyway.
Video transcript
00:02
We're going to have a look at the Subdiv Insert tool
00:06
and I'll start with these Insert mode settings
00:09
and I'll just use this hood with the indented scoop area.
00:15
So the Parallel option has Pick Edge Loop selected, which is normally what you want.
00:20
And if the controls aren't already displayed,
00:22
then the first click will display them.
00:24
So I can then just click on one edge
00:27
and then drag as far as the next edge loop in either direction.
00:32
So I'll just undo that
00:34
and then with Perpendicular instead you click on
00:37
an edge to insert a new loop across it
00:40
and you get the same results when there's a simple flow of quads.
00:46
But where the topology is more complex like the five edges here in this corner
00:50
or the three down here,
00:52
then we can get different results.
00:55
When you use Parallel, it's limited to a simple edge loop up to a complex junction.
01:00
So here I would have to insert twice to get another loop
01:04
on the edge of the scoop.
01:06
But if I undo those, what Perpendicular allows me to do
01:09
is work across that whole inner edge in one go.
01:13
So I can add in a loop at the top
01:15
and another one lower down.
01:17
So both modes can be really useful.
01:19
And you can see that inserting brings the limit surfaces
01:22
closer to the control cage for a tighter shape.
01:26
So next, I'll look at the Offset mode with Relative and Parameter settings.
01:32
On this roof, I've got just one face loop that's across the center line.
01:37
So if I wanted to split that with an Insert,
01:41
and I'll just stick with Perpendicular,
01:44
you can see that this Parameter value goes from around 0 to 1.
01:49
So if I want to insert exactly at the center,
01:51
then because it's symmetrical, I can type in 0.5 in the tool window.
01:56
And that means I could delete these faces for example
01:59
and just go back to one half of the roof.
02:04
So that was the Relative mode
02:06
and I'll switch back to Parallel now as it's got this Both option.
02:11
So if I click here and drag,
02:12
you can see the Relative option gives
02:14
me quite different offset distances on both sides
02:17
because it's relative to the face length.
02:21
If I undo that and switch to Distance
02:24
and then do exactly the same.
02:26
You can see that the offset is now an equal distance on both sides.
02:31
So I'm just gonna put that back to Single because in practice,
02:34
I probably use Bevel instead,
02:38
but this offset mode also affects the angle of the insertion.
02:41
And I can show this on the wheel arch.
02:45
So the Distance setting keeps this initial angle constant,
02:48
and so it can distort the layout a bit,
02:52
whereas Relative adjusts the angle of the flow between the edges as it goes along.
02:58
And that's why Relative is the default setting.
03:02
So undo those and have a look at the last option which is Edge Flow.
03:06
But first, I'm going to copy and paste
03:09
and then Template so that we can compare any changes to the original.
03:13
So the default is without Edge Flow.
03:16
And here the control cage is kept the same
03:19
and it's simply split.
03:21
But if I turn Edge Flow on,
03:22
then the control cage is now modified to try
03:25
to maintain the curvature shape of the limit surfaces.
03:29
So if we shade those, you can see that it's resulted in a flatter shape
03:33
when I haven't got Edge Flow
03:35
and with Edge Flow on, it's moved further out and it's rounder.
03:40
But in practice,
03:41
you're probably going to pick those new inserted edges and
03:44
move them around until you get the shape you want anyway.
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