Thứ Hai, 24 tháng 7, 2017

Waching daily Jul 24 2017

Daddy Finger, Daddy Finger

Where are you?

Here I am, Here I am

How do you do ?

For more infomation >> Sheeps Color Finger Family Video for Kids | Learn Colors - Duration: 2:06.

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Sandra Shaw's Video Forecast - Duration: 0:44.

For more infomation >> Sandra Shaw's Video Forecast - Duration: 0:44.

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Beginners guide to Learn 3D in Houdini 16 - SideFX 3D Video Tutorial: Procedural Interface and nodes - Duration: 37:27.

hey guys so today we're going to look at a very beginner look at Houdini and

looking at the interface how to navigate everything for the absolute beginner

into Houdini so looking at the top here we have a menu setup right here and we

can look at a lot of different things that we have here different settings and

preferences and stuff like that one of the first things when you're working

inside of Houdini is that you're going to want to set up a project whenever

you're working on anything so this will give you a hierarchy of folders that you

can save into and you can say this is our intro project and then it's going to

set it to home which is inside of the my name document and then it's going to go

into Houdini projects intro project and it's going to create all these

subfolders for us so I'm just going to click accept and now that we have done

that we have the file structure set up but we haven't saved the actual file

itself so I'm going to click Save and you can see here that it already took us

automatically into the intro project which is what we wanted to do so I'm

going to call this intro and accept so now we have our file structure the way

we want it so that we can work inside of Houdini if you look at this tab on

the side it's kind of nice you can collapse things that you're not using

that often and collapse it so that way you kind of get more real estate on your

screen so you can actually go through and collapse pretty much anything that

you have access to here inside of Houdini it gives us a lot more space

which is nice okay so underneath the menus here we have our shelves the

shelves have a lot of quick these tools that we can get to I use

these sometimes I find that I don't use them as much as I used to when I was

starting off but it's a nice way to get a lot of things that are kind of

pre-built and they are just really quick access tools that you can get access to

but I do use them just not as much as I used to I guess um looking on this side

here this is just kind of an expansion on the shelf so there are more shelves

that we have here but you'll see that there's kind of this little divider this

divider you can actually slide back and forth so if you want more room on one

side or another you can do that because if you go too far this way you'll see

that we're kind of cropping off some things and if we want to access to it we

have to push the arrow so that we can see everything that we have available to

us there so if I expand it then I have I can see everything here but I can't see

everything on this side so I would have to click the arrow to go back and forth

so it's just kind of giving us access to being able to see more things if we

needed to down here is our kind of main working area and in this working area

it's our viewport right now that we're seeing or our scene view we can switch

this out to be basically anything right now we have some tabs that are set up

here so we have the scene view the animation editor rendering view

composite view motion effects and geometry spreadsheets so if we go

through here you can see that they all look very different and they have their

own tasks for what they're doing but for the most part what you're going to have

open here is the scene view and it's just not limited to these things if we

click on the plus and we look at new paint up type we can actually create

pretty much anything so if we want to we can

see a Python shell for example if you're typing Python or something like that we

can access it that way so it is really flexible we can even take a tab that

we're using over here and switch it over into this window so you can actually

grab tabs and move them from one section to another depending on what you are

doing at the moment so sometimes it's more useful for you to have something on

one side than another and you can completely customize it which is nice

let's see they have here and build we have different kind of layouts that we

can look so if we go to animation we can see that it lays it out different than

build which is the default setup and it has a whole bunch of different kind of

layouts that you can create if you wanted to you can always go back to

build that's default one and you can save current desktop as so if you change

anything and you want to save out a special type of desktop that you like to

go back to a lot you can do that here and then I'll give you a tab to be able

to load it and then you can load that particular thing or if you kind of

change things around I can go back to build and just reload current um because

if we load current desktop and it will switch it back to what the default it

was so if by accident you did something that you just didn't know what happened

what you did that you messed something up so that you ended up something like

that you can go back in and reload current desktop and it will get you back

to the defaults so you're never too far off if you think you've messed up

something with the way your layout is so again like I said most of the time what

you're going to have here is your viewport so with the viewport

or you want to be able to navigate in your viewport obviously so inside of

Houdini if you want to orbit around the world it is hold down the spacebar and

then click and drag and that will rot... or orbit your camera around in the

viewport this is done with the spacebar so holding down the spacebar click and

drag and the click is a left mouse button click then we can do the spacebar

and middle mouse button click and when we drag with that we can pan our scene

at the current orientation that we have and then we can do spacebar right mouse

button drag and that's going to allow you to zoom in and out so that's pretty

useful that allows us to navigate inside of our view another thing that we can do

in our viewport here is if we look at our perspective setting we can change

our perspective viewport to be an orthographic view here if we wanted to

so if we wanted to look at it straight from the top we can do that we can go

back to the perspective view and up here on this top view section right here we

have single view for view to stack and a whole bunch of different options so if

you want to be able to see it in a different layout you can switch out that

way it also has a shortcut where you're doing control one control to control 3

and that will switch out your views for you also if you push 1 2 3 4 you have

some presets of different camera ortho graphics or perspective views that you

want to get into so that is pretty useful and then up here right now by

default we have our parameters open so again we have a whole bunch of stuff

that we can look at but by default the parameter is visible here and that's

what most people start off working with there and then down here is our scene

view this is basically where we modify and work with all of our nodes inside of

Houdini so let's create something really quick if I click in here and I push tab

it brings up our tab menu the tab menu basically gives us a list of things that

we can go ahead and create the other thing you can go through all these menus

and everything but typically what I do is just push tab and then start typing

so I know what I'm looking for is a geometry node the geometry node is a

placeholder node that will give us a piece of geometry by default is this

kind of cube shape it's not really cube but it is just a placeholder object that

we can go in and swap out with something else so that gives us this note here

that we can work with the geometry node here let's look at this node if you look

at this i right here to your node information so if there's any

information you can go there and look at it right now this is just kind of basic

geometry there's no information in there so that all it is is doing it telling us

that there's no time for there selectable so this can be selectable so

if we go into the viewport and we want to select it we can select it and here

we have the display flag so if we turn that off by clicking on this we can make

the display not visible inside of the scene view and that's all the basic

stuff that we have with this geometry node here we have

inputs and outputs so right now we don't have anything else in the scene but

let's say we had just go in and create another geometry node we can connect

them together then this is basically creating a parent link we'll look at

what is that later right now we don't see two objects we only see one because

they're right on top of each other so

inside of Houdini 16 we have a shortcut that we can use which is why why brings

up our wire cutters which basically if we click and drag it draws a line and it

cuts the connection between nodes it's pretty awesome new tool starting out in

Houdini 16 that we have access to now so now they're not parented and let's look

at moving one of the pieces of geometry that we have here so on the left hand

side of your scene view here you have some manipulator tools this tool here is

as the move tool if you hover over it you see that it has a T next to it so

that means that that is the shortcut so if I push T on the keyboard it will go

to that tool if I look over here s for select it has a shortcut key R for

rotate and E for scale and then this is the gizmo tool which is show handle

tool here and it is kind of a combination of all of those tools but if

you have another tool selected it might be something different but in this case

right here is just giving us the ability to move things and do all three at the

same time so I'm going to go to the translate tool

or the move tool and here and a viewport I can click on the arrow and move it so

now we can see that we actually have the two different objects and I selected it

here in the viewport so that I can have access to it I can switch back and forth

and select them that way or I can click in the viewport and

that way and with this move tool if I look at it I have arrows so when I pull

and move on the arrows it lets me move in just a single axis at a time we also

have these little squares so when I hover over it you can see that it shows

an X Y and what that means for us is that I can move in the two axis here

that is flat on the XY plane over here I hope for it you can see the Y Z and then

we have this one which is the X too so it gives us quite a bit of different

options to be able to move to do all those actions as you saw me kind of

going back I was just doing control Z which is an edit undo ctrl Z just to get

back to where I was so that is the move tool also see when I have these objects

selected or if I select on these nodes here you can see in the top section here

I have the parameters because we are in the parameter if I click off of

everything it's going to leave that last selection because I already accessed it

but basically we're switching back and forth and we have parameters so we can

type in a specific value in here if we didn't want to kind of leave it to

eyeball e and we needed something very accurate we can type in values here we

can even do expressions and things like that we won't go over that in this

lesson but just know that you can connect things here other than just a

direct numerical value you can actually write an expression and have procedural

animation or positioning happening through an expression okay so yeah that

was the move tool let's go over to the rotate tool I can click the button here

or I can click R on the keyboard that gives me access to be able to

rotate again you can click on the individual axes lines so you can rotate

on a specific axis one at a time this one on the outside here lets me rotate

based off of the current view of the viewport so it will have different

effect depending on how I'm looking at this geometry and then if I click on the

center in the kind of gray area of this view I can actually tumble in all three

accesses which is kind of an interesting way to be able to move it if I want to

get it back to the origin I can kind of try to eyeball it and get it pretty

close to be as far as possible or I can go back in here and type zero zero zero

and zero and it will reset my orientation so that is the rotate tool

and then we have the scale tool here with the scale tool we can scale in a

single axis at a time so I'm clicking on that little line in here and whatever

axis I want to do so that will give you the single axis you have this shape

right here and we can scale on two axes at a time so that was what was this from

the XY this one is the Y Z and then we have the X Z so we can do two at a time

and then um let's see if we click on the triangles I believe it's out here on the

outside part we can do it uniformly yeah so that lets you scale your objects

uniformly um let's see what else do we have here that would be good to know

well let's look at the show handle tool here it's pretty interesting because we

can rotate anything we want we can also let me get in there

go okay here we can move and I think we want and then we have these here we can

move in different access fees and things like that so it kind of gives us access

to more tools than just kind of the basic ones but it is it can change

depending on what tool you actually have access to at the time what you have

access to work with so be careful with that let's look at maybe creating some

other pieces just and other than these placeholder pieces is geometry let's say

we wanted to change our geo one here and we wanted to create a different piece of

geometry maybe a sphere or something like that

so what I'm going to do is take this file node because it's looking to import

something and we can see that right now we have a default geo and actually I

don't think if I said exactly how to get into here so if I did - so if I'm

repeating myself but in the object mode here I'm just going to double click on

the geo that gets us into the node editor for our object there this is what

they call SOPs and we're at the top level of this object so here basically

we're loading this default be or dot be geo file which is this file right here

in this case I don't want that I want to have a sphere so I'm going to select the

push delete on the keyboard that gets rid of that shape for me then I am going

to push tab here and I'm going to type in sphere and you can see as I type in I

have access to this here and I can create it there

it creates fear for me with this year we have different kind of modes and things

that we can create this sphere in if we want polygons polygon mesh and different

options and stuff like that but that's going further that I want in this

particular video I just want to show you that you can create objects in here we

can add a whole bunch of stuff to manipulate this object to make it look

like whatever we want but just know that this is the main area where we will work

and do things with this object so I'm going to go back to the object level by

clicking on object here so it's kind of like a hierarchy we went into that

object and now we're jumping back out to our scene level so I have geometry tool

to here I'm going to double click on that and I have this file note again so

I am going to delete it and push tab and let's say this time I want a torus just

so we have something different I can click that torus and put it in there

and you can see that I've with the sphere when I created it and I created

it by default place it in the center and this time when I created the torus it

created it off to the side and that's because I moved it at the object level

so we can see that it is three units let's make it something even four units

here so when I go into the torus it's taking that information and feeding it

into here so that's something else to keep in mind is that the tool here is

kind of separate we can see that the center here for the object inside of

SOP level is at zero zero zero whereas in the object level for geometry - it's

called this t torus Geo so we can actually rename things by clicking on it

and renaming it here see geo so we can kind of be able to

access and name it and know what we're working with a little bit easier so

going inside of this torus it's Zero Zero Zero but out here we are at four zero zero so

that's where we're setting the world for everything that is in this object so

let's say we wanted to manipulate this and we took it and edit a transform node

so the transform node is kind of in the SOP level how you can go in and

manipulate it so right now I change the eyeball or the display flag from here

because if we're looking at this that's the furthest down the chain that we can

see it to the transform node here so with the transform node with the eyeball

now I can actually go in and move this and let's say I moved it negative four

units so it shows like it's at the center but basically what we're doing is

kind of counter balancing what we did here so we're not really changing this

value at all we're actually just moving it from whatever it considers its world

so in this case when we look at it at this level here we are seeing it at the

origin of its world which is at zero over here so if I push Y and I cut this

connection here the center should be at so I actually manipulated it here I

wanted to manipulate it here on the transform so I can do negative four so

if I push the display flag here you can see that here the spheres here and we're

viewing it at this level as soon as we jump down to the next level the sphere

has moved over to that section so it doesn't really lose the history of that

the origin is here it really gets manipulated at this point

and shifts it over I can move it up and it keeps that history only based off of

what is here so if I were to click on it we can see kind of the wireframe of

where it is but the main active thing is whatever it has display which is that

and again if i push Y I can cut it and it doesn't have a connection so I have

this transform information that is there but it doesn't have any information

feeding into it in order for it to work we have to draw this connection by

clicking on the outputs of this to go into the input of the transform node so

when we have something like this in our scene it doesn't necessarily have to be

individual object so I'm going to go back to the object mode right here and I

am going to select all of the nodes that we had there and delete them and let's

say I wanted to create a sphere I'm going to push alt and where is it

control there we go control and click on the sphere and when

I do that it creates it there in the origin you can see that it created this

geometry node for us this is geometry here but it's created it as a sphere

object and it already has that sphere connected so this is kind of like a

shortcut way to create those few steps that we just did to create a sphere so

let's say I move that up here I can actually take this and let's say

actually I'm going to yeah want it there so I'm going to select this and copy and

paste those ctrl-c ctrl-v and I created another sphere this sphere

I want to move it up and you can see that I don't see that other sphere

because they're not connected but if I go over here

I have the other sphere that is actually there so I have two spheres inside of

this geometry node that we created if we want to be able to see them together we

can actually do a merge node and with this merge node you can see that this

input node is a different shape so that means that we can actually input a lot

more than just two things if we wanted to we can keep on inputting more and

more things to go into this merge node so if I click the display flag here you

can see that now we see both of these objects and let's say I wanted to

manipulate this I can go here and adjust it so maybe I can take in the radius

maybe and adjust it and here what I'm doing is clicking on the radius middle

mouse button clicking on it and it gives us these increments by so I can say I

want to go by point 1 increments and then drag and you can see that all the xyz

are all changing at the same time to be able to change that then I can move

down and this is point 0 1 so I can go at a smaller increment level or point 0

0 1 you can see that it moves much slower so we can also go in the opposite

direction so we can go we want to do it by once so it scales and goes down

pretty big or pretty fast so let's say I want to kind of leave it something like

that and I move the center to kind of be a little bit like that and then I can

another way that you can actually do this which is pretty interesting is so

here we've created two pieces of geometry and we merged it down into this

bottom section where is the merge what we can do is create something like a

transform node let me put it over here where you can

see it so I'm pushing tab push transform

there we go so with the transform node I can connect the inputs of this

sphere into the transform and then click it into the merge so now we have this

sphere kind of coming in twice when directly and want to do the transform so

if I push the eye socket here on this transfer we can see that there is a

valley that's changed and I'm going to go here and select it on the merge so

even though I have the display flag I can actually select a piece of geomet... oh I mean node

change the properties here so I'm changing something up higher but I want

to see the result down here so I can now take that and move it up and maybe scale

it down a bit and just move this back up again so here we can see that we have

three different spheres that we kind of stacked on top of each other but with

the spheres on basically what we're doing is adding them all into one piece

of geometry and also we're doing it in different ways we can make a direct

connection we can make a direct connection here again but with that same

direct connection we can do a transform and create multiple things here so if we

wanted to really what we could do is take that and connect it to the original

sphere and we have a transform so since the geometry is kind of more intense

more processing that's happening and then we are just manipulating that one

piece of geometry what we can do is copy and paste this transform again

and on this one maybe put it up higher and scale it down again and then merge

this one down and together with the other ones and you can see now we only

have one piece of geometry but we are affecting our and then we end up having

three of them to do the way that we've done this procedurally so I hope that

makes sense um we can since this kind of looks like a snowman let's go in and we

can do something like a maybe let's look at what we have here as options if you

go into polygons push tab go to polygons or primitives actually is what I want to

see you can see different objects that we have access to summit is actually

going off the screen here because there's more things that we can get down

at the bottom so let's we can make this big here maximize play pane so it is

let's try this I'll be that didn't work this to control B there we go

so with the control B we can actually

make any one of these windows actually fullscreen so in this one I'm taking

this pane here making it full screen and that's push tab here so that I have a

little bit more room I can look at primitives you can see that there's even

more stuff that is popping out here [COUGH] excuse me

and that's just because I increased the resolution to be able to or decrease the

resolution so that I can have things be a little bit bigger for you guys so that

you can see it a little bit easier usually by default all these things are

a bit smaller and these menu items and things like that are smaller so right

now it's kind of going off to the end there I don't know it's

it is probably created that there okay so I'm going to go back into this

sphere here and maybe create a tube so tube is kind of like a cylindrical shape

that we can work with and we can actually take that and merge it into

there you can see that it looks kind of hollow so let's go back there okay so

the tube looks hollow if we look at the options here we can click on this

checkbox and that will give us end caps which is pretty nice we can adjust the

radius so I'm going to take that radius down and kind of take this radius down

come adjust the height also so I'm going to bring that maybe more down and I'm

going to adjust the center to kind of come up maybe move this a little bit

actually I don't want it move it that way I want to move it towards the front

and I don't have any real orientation setup here other than creating it on a

different axis so I can create it on the x-axis and say that that's the way I

want that point to come out so here I'm going to make this smaller and this one

smaller as well so I can kind of kind of make a carrot shape it's very primitive

at this point but it kind of gives you an idea of what you can do with some

primitives is there in place

so now we have kind of little carrot coming out from the spheres there to

kind of give it a direction and whatnot but that's the general idea if we go

back into the object mode here and I select this this is the main geometry

let's recall rename this to something like snowmen and now that we've done

that we can move it all as one whole object here so I can move it I can scale

it if I want I can rotate so it gives this a whole object that is the Snowman

but it's made out of multiple little pieces here and again there's much more

to kind of go over it and work with this to kind of make it more detailed and

make it look like a higher quality model but this is just a basic overview of how

to use Houdini in a very basic look and also going into the nodes creating nodes

to be able to create something that you can see inside of there again we can

make it things dynamic we can add particles to

make it snow in here and things like that but that's out of the scope of this

video I hope you guys enjoyed it learn something and um check back on filmmakerperez

here and i'll upload more tutorials as time goes by I hope you

guys found this useful we'll see you guys in the next lesson bye

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