آموزش ZBrush از ۰ تا ۱۰۰ به زبان فارسی
هنگامی که شما در حال کار بر روی یک مدل مانند یک شخصیت هستید، ممکن است متوجه شوید که هستید
به طور مرتب ماسک کردن یا جدا کردن قسمت های آن مدل، به طوری که شما می توانید وارد شوید و
آن را تغییر دهید این می تواند بعد از مدتی کمی خسته کننده شود.
به عنوان مثال، اگر تصمیم بگیرم می خواهم لب پایین را از بالا جدا کنم
لب، من می توانم این کار را با استفاده از ابزار انتخاب من انجام دهم. من از femaleHead_v01 استفاده می کنم
مدل. کاربران حق بیمه می توانند این مدل را از فایل مثال نمونه دانلود بارگذاری کنند. بنابراین
شما همچنین می توانید از برخی از مدل های نمونه ای که با ZBrush می آیند استفاده کنید.
من می خواهم این مدل را داشته باشم و من می خواهم لب پایین را از آن جدا کنم
لب بالا برای شروع، اگر من هندسه خود را پایین تر، آن را کمی ساده تر انجام دهید
00:00:42 قطعنامه. من قصد دارم این را به سطح 1 برسانم که چند ضلعی را ایجاد می کند
00:00:45 کمی بیشتر واضح است
00:00:47 من قصد دارم تا دکمه Frame را روشن کنم تا بتوانم قاب سیم را ببینم
00:00:50 چند ضلعی اکنون می بینم که چطور مدل واقعا سازماندهی شده است. من قصد دارم
00:00:55 با کشیدن بر روی دکمه مقیاس زوم کنید، و من قصد دارم به طرف چرخش بچرخم
00:01:00 کلید Shift را فشار دهید تا آن را به مکان متصل کند، مدل را بیش از حد حرکت دهید
00:01:05 کشیدن با کلید Alt افسرده. من قصد دارم به انتخاب Lasso برگردم
00:01:09 من قصد دارم Ctrl + Shift را نگه داشته و انتخاب را در اطراف دهان به سمت راست بکشید
00:01:14 اینجا، و سپس فشار از رایانه لوحی را آزاد کنید. حالا، من فقط دهان را اینجا میبینم
00:01:21 من قصد دارم به زوم کردن در منوی Transform در اینجا، من نقطه فعال شده است. این
00:01:30 انتخاب را کمی ساده تر می کند، بنابراین می توانم یک گوشه ای از یک انتخاب کنم
00:01:33 چند ضلعی و انتخاب خواهد شد.
When you are working on a model, you may want to isolate parts of the model
just so you can work on a few details of one section. Let's say you are working on
just the eye area of a model, you can actually isolate the eye area of the
00:00:12 model by hiding everything else except the eye.
00:00:16 To do this in ZBrush, there are few simple controls. I have my greenMan_v01
00:00:21 model loaded on the canvas and this is available to premium users. You can also
00:00:26 use the example models that come with ZBrush.
00:00:29 I have it loaded on the canvas and I'm in Edit mode. I'm going to rotate to a
00:00:34 side view here, just start dragging a blank part of the canvas and I'm going to
00:00:38 hold the Shift key and that will snap it into a side view. And I'm going to
00:00:42 zoom in to the model. I'm going to press the Alt button, drag on the canvas,
00:00:46 let go the Alt button and zoom in.
00:00:48 Don't forget there is another way to do that. That is to use the Scale button
00:00:54 on the side shelf here. I'm going to focus on the eye area. I will just hold
00:01:00 the Alt key while dragging on the canvas to reposition it.
00:01:03 And now I'm going to make a selection and I'm going to hide all the parts of
00:01:06 the model that are not in that selection. To do this, I'm going to hold
00:01:09 Ctrl+Shift and I'm going to drag a selection marquee on the canvas, from a
00:01:14 blank part of the canvas over the eye and you will see this green box appear.
00:01:19 Everything within the green box is going to remain visible; everything outside
00:01:24 of the box is going to be hidden.
00:01:25 I'm just going to let it go by releasing my pen from the tablet or if you are
00:01:30 using a mouse you can release the mouse button, and after a couple of seconds I
00:01:35 have my selection.
00:01:36 Now I just have the eyes and I can really get in here and work on the eyelids
00:01:42 and the shape of the eyes and so on and so forth without worrying about either
00:01:46 accidentally changing another part of the model or having that part of the
00:01:50 model distracts me. If this particular model had the objects that were in front
00:01:54 of the eye, I could hide those and then just get to the eye.
00:01:57 And one of the side benefits is the performance in ZBrush actually improves
00:02:02 when you hide parts of the model, that's especially a model is made of a
00:02:05 millions and millions of polygons. When these sections of the model are hidden,
00:02:09 they haven't been deleted but as far as ZBrush is concerned, they don't exist.
00:02:13 So ZBrush can concentrate all of its processing power on just what's in visible
00:02:17 on the canvas. And you will actually notice when you hide parts of the model
00:02:21 that the performance as you rotate the model and as you sculpt on it, it's a
00:02:25 little bit faster, so that's an extra side benefit for hiding parts of the model.
00:02:30 Now if I'm done from working on the eyes and I want to bring back the model,
00:02:33 all I need to do is press the Ctrl+ Shift Key+ and tab, and after a couple of
00:02:39 seconds, the model reappears. I want to press the F key to center the model
00:02:43 again on the canvas, so we can see the whole thing.
00:02:46 And I'm going to demonstrate that a couple more times. This time I'm going to
00:02:49 hide everything but the top area of the model. I'm going to hold Ctrl+Shift
00:02:55 drag a selection marquee, so I have my green box. Then I'm going to let it go.
00:03:00 And after a couple of seconds, everything in the lower part of the model that
00:03:03 was not in that green box is hidden. To bring it back, I will just press
00:03:07 Ctrl+Shift, tab on the canvas. And now everything is back.
00:03:12 To speed things up a little bit, I'm going to lower the resolution on the
00:03:14 model, bring it down to Sdiv Level 5. Now if I want to do the reverse, if I
00:03:20 want to hide just the selected area of the model, I can do this by holding
00:03:25 Ctrl+Shift, drag on the canvas just like we are doing before to get that green
00:03:30 box, but now I'm going to let go off the Shift key and then let go off the
00:03:36 mouse, and everything that's within the red area will be hidden and the other
00:03:40 parts of the model will remain visible.
00:03:42 There we go, this face is gone. To bring it back, just to Ctrl+Shift, click on
00:03:47 the canvas. This one takes a little bit of practice to get used to. I'm doing
00:03:50 it a couple more times here. I'm going to press Ctrl+Shift, drag my green box,
00:03:57 let go the Shift button, so it turns red and then let go off my pen on the
00:04:02 tablet or the mouse key. To bring it back, Ctrl+Shift, tab on the canvas.
00:04:08 One another way, I can make a custom selection is to actually use masking and
00:04:14 this is helpful if I want to hide parts of the model that are not necessarily
00:04:18 connected. So I can hold the Ctrl key and start painting a mask on the object.
00:04:25 I'm going to paint a few unconnected areas.
00:04:31 Then I'm going to go into the Tool palette to expand the Masking sub-palette
00:04:37 and press the HidePt button. And this hides all the areas of the model that
00:04:42 have not been masked. To bring everything back, I will just press Ctrl+Shift,
00:04:47 click on the canvas. You might find that the mask has left a little bit of an
00:04:51 edge there. To get rid of that, you can just press the Clear button.
00:04:55 When making your selections, you can also use Lasso selection if you want to
00:05:00 create a free form selection. I'm holding Ctrl+Shift and I'm dragging on the
00:05:07 model, but since I have the Lasso button activated on the right shelf, now I
00:05:12 have a custom shape rather than just a rectangular area.
00:05:16 And this is the same if I want to hide parts of the model, Ctrl+Shift, drag a
00:05:22 custom area, let go off the Shift button then let go off the mouse or the
00:05:30 digital pen from the tablet and then here we go. I'm going to move to a lower
00:05:37 resolution here.
00:05:38 It doesn't matter what resolution you are on when you are making the
00:05:41 selections, it's not going to affect the way that you selected, other than of
00:05:46 course, in a higher resolution model you are going to either select or
00:05:49 de-select more polygons than the lower resolution model.
00:05:52 You may find that as you are making your selections activating the Pt Sel
00:05:56 button in the Transform menu; this is the Transform menu right here. I have
00:06:01 this activated and when I'm working, I have this activated at all times. It's
00:06:07 off by default but you will find that by activating this, the selection is a
00:06:11 bit more accurate especially when you are going in there to select individual polygons.
00:06:16 So using the Ctrl+Shift key combination to hide parts of the model will allow
00:06:21 you to just focus on small sections at a time, so that you can really work on
00:06:25 the detailing and at the same time it also improves the performance of ZBrush.