Blender 3D: Noob to Pro/Penguins from spheres

From Wikibooks, open books for an open world
Jump to: navigation, search

Setup[edit]

Start with the default scene: it should contain a selected cube. Delete this cube by pressing  X Delete.

Blender 3D-cursor.png

Put the 3D cursor at the scene center by pressing  Shift + C .

Note: after deleting the cube you must be in Object Mode. If not, switch with  TAB .


Creating the body[edit]

Z-scaled sphere

Noob note: to ensure that you don't become confused, make sure that your viewport is set up in the same direction you see in these pictures. The colored arrows are red, green, and blue and they control the x, y, and z axes, respectively.)

  • We start by creating our main body from a sphere. Press  NUM7  to switch to top view, and then  SHIFT + A  → Mesh → UVSphere, then choose 16 segments and 16 rings.
    • Note: You have to manually switch to the Edit Mode after creating the sphere; do this by pressing TAB (In older versions of Blender before 2.45, Blender automatically switches to the Edit Mode. This is OK, since we will start editing the mesh now.)
      There was a report that in 2.61 it didn't have a pop up unless the  F5  key was hit immediately after placing the sphere

We're going to make it look like a penguin body:

  • press  NUM1  to switch to the front view,
  • with all the vertices selected (if not,  A ), choose the scale tool ( S ),
  • restrict scaling to the Z-axis ( Z ),
  • and move the mouse away from the 3D cursor while holding down the  CTRL  key (this snaps the scale values to whole numbers),
    • Note: Make sure the mouse cursor is not too far away from the sphere when hitting the  S  or else you may not be able to reach a 2.000 scale value. The scaling steps are proportional to the distance from the 3D cursor when calling the scale tool.
  • the current scale shows in the lower left corner of the viewport, click when you've reached 2.000  LMB ).
    • Note: You can also do this by typing in 2 after starting the scale and restricting movement to the Z-axis

This is our main body!

Shaping the head[edit]

We’re going to shape the penguin head from the top of the sphere.

Blender3D Limit selection to visible.png

Start by selecting the top-most single vertex as well as the top two smallest circle segments.

Note: selection has been explained in a previous tutorial. Here, the easiest methods are either box selection  B ) in the front view  NUM1 ) and Limit selection to visible off, or lasso selection ( CTRL + LMB ) in the top view ( NUM7 ) and Limit selection to visible (May also be labeled Occlude background geometry) on. You can also switch to top view, center your mouse on the topmost vertex and use the circle tool. Don't forget to deselect all first ( A )
Noob note: make sure the Limit selection to visible/Occlude background geometry button is in the right state each time you select vertices, edges or faces. When it's off, selection affects any item, visible or not.



Building the neck with the 3D transform manipulators[edit]

To turn on the 3D transform manipulator, either push down its button Blender Handicon.png or use  CTRL + SPACE  and choose Enable/Disable.

Moving the two selected circles up[edit]

Blenderpenguin2a.png

Choose the Translate manipulator (red triangle). Go to the front view ( NUM1 ). Drag the blue arrow while holding the  CTRL  key down to move the selected vertices 0.3 units up.

Noob note: you may not be able to snap the extrusion lengths to tenths of units.  CTRL  snaps to the grid size by default: if you can only translate by one unit (1.0), zoom in until the grid divides itself into tenths (SCROLL). Some Blender versions allow to snap to one tenth of the current step by holding both the  SHIFT  and  CTRL  keys while moving the mouse.
Noob note: instead of the Translate manipulator, you can use the  G  and constraint the movement to the Z axis ( Z ).


Rotating the neck[edit]

Blenderpenguin2b.gif

Now switch to the side view ( NUM3 ) and make sure that the rotation/pivot point is set to "median point" either by selecting it from the third drop down menu right of the "Mesh" menu, or by pressing ";". Choose the Rotate tool ( R ). Move the mouse with the  CTRL  key down to rotate the selection 30 degrees counter-clockwise. Use  LMB  to validate the rotation.


Blenderpenguin2c.gif

Select an additional ring of vertices by expanding the selection ( CTRL  +  NUM+  (Note: NUM+ Refers to the addition symbol on the NUM Pad, KEY+ will not do.). You can contract the selection by pressing  CTRL  +  NUM− . Move these vertices an additional 0.3 units up, then rotate them as previously 30 degrees counter-clockwise in the side view.


Blenderpenguin3c.gif

Repeat those steps (selection expansion, translation and rotation) two more times and you'll end up with the body seen in the below.

That doesn’t really look like a penguin, yet!


Blenderpenguin3c.png


Now move all of the selected vertices to the left 0.4 units by pulling the manipulator's green arrow (and of course holding the  CTRL  key down). This straightens out the neck as seen in the next picture.

Noob note: you can also use the  G  and translate the selection by -0.4 as displayed in the bottom left corner of the viewport. Still do this in the side view ( NUM3 ).


Noob note if you had to pull the red arrow, not the green one, then you probably didn't switch to side view, and modeled the neck in front view. If you realize here that you have this done from another view then press AKEY twice, then NUM7, then Space -> Transform -> Rotate and type 90 or 270

Creating the beak[edit]

Blenderpenguin4b.gif

Switch to the front view ( NUM1 ), and select the frontmost vertex (the one that originally was the top vertex of the sphere) with the  RMB . Then switch to the side view ( NUM3 ) and translate this vertex to the left by 1.2 units using the manipulator's green arrow or the translate tool.

Note: some Blender versions allow moving the vertices from the keyboard with the following sequence:  G ,  Y , -1.2,  ENTER .


The main body of the penguin is now finished. The next step is to create some flappers for the poor little guy.

Extruding the wings[edit]

We are going to create the wings by extruding faces on each side of the penguin.

Noob Note: You can rotate the whole object by pressing A to select all of its vertex and then rotate it pressing R or using the Rotate Manipulator until the axis on your screen matches the axis on the example image. That way, also, you can practice a little more


Penguin from sphere - wing start.png

Choose the side view ( NUM3 ) and switch to the Face select mode ( CTRL + TAB Faces, or click on the triangle in the toolbar).



Blenderpenguin5b.gif

Now, select two faces that will make up the penguin’s shoulder as shown on the right (either select the first one with  RMB  and the second one holding  SHIFT , or use box selection ( B ) to select them both in a single operation).


Wing extrusion

Then switch to front view ( NUM1 ) and extrude the selection:

  • choose  E Region,
  • constrain to the X axis ( X ),
  • hold  CTRL  to snap,
  • and move the mouse to extrude the shoulder by 0.2 to 0.3 units.




Bottom face selection

We'll now extrude the bottom face of this new extrusion. Rotate the view to show it with:

  • a  MMB  drag,
  • or several presses on  NUM2 ,
  • or  CTRL + NUM7  (bottom view).

Press the  A  to deselect all, and select the bottom face ( RMB ), switch to front view ( NUM1 ), extrude by 1.4 units down ( E  and  CTRL ).

Now do the same on the penguin's other side: use  CTRL + NUM3  to view the left side (you can also rotate with  MMB , or press  NUM4  several times).

Smoothing the wings[edit]

We’re going to smooth out the shoulders and improve the wings. Though this can be done in many ways, we'll only use the merge tool.

Blenderpenguin4-04.png

Rotate your penguin so that you can see one shoulder from above. Then switch to Vertex select mode ( CTRL + TAB Vertices). Press  A  to deselect all, then select the two shoulder vertices with  RMB  and  SHIFT .

Press  ALT + M , choose At Center from the popup in order to merge the two vertices at their center. Finally dismiss the message saying Removed 1 Vertices.

Edges to smooth

Repeat the steps with the two other vertex pairs shown on the right picture, and smooth the other wing. I’m leaving the middle segments for now, else the wing tips will be too pointy.

Note: if you have troubles merging vertices, it comes from vertex duplicates in your mesh. You probably chose Individual Faces instead of Region when extruding the wings, which creates duplicate vertices and neighbouring faces. To clean up your model: select all vertices ( A ) and choose  W  Remove Doubles.

You must do them one by one!



Blenderpenguin6b.gif


Finish off the wings by selecting the two backmost vertices of the wings, and moving them up using the blue arrow by 0.1 unit.

Wings complete


You should now have something like this:


Cutting the underside[edit]

Blenderpenguin5-01.png
Blenderpenguin7.gif

We're going to cut the penguin's lower end, for it to stand up! Select the bottom vertices (bottom vertex and the first ring above it) as shown in the picture. There are many ways, this is left as an exercise.

Once they're selected, delete them ( X Vertices). Now our penguin is hollow: select all the vertices around the hole, and fill it using  ALT + F .

Noob note: For Blender 2.56  SHIFT + F  goes into Camera Fly mode,  ALT + F  however did the filling.


Noob note: To quickly select all the vertices around the hole, you can enter edge mode  CTRL + TAB -> "Edges", and then select one edge that goes around the hole. Now press CTRL+E -> "Edge Loop Select", which should select all edges around the hole. Now go back to Vertex select mode and continue with  ALT + F .
Noob note: For Blender 2.56 In vertex select mode and occlude on hold down ALT and select one of the vertices all the vertices in the ring will be selected.

Adding the feet[edit]

Blender - Penguins to spheres - feet start.png

The next step is to provide the little guy with feet. To do this, we’re going to extrude two of the front faces:

  • choose the front view ( NUM1 ),
  • switch to Face select mode,
  • turn on Limit selection to visible (labeled Occlude background geometry in later versions of Blender)
  • and select the face to the left and right of the middle two faces of the penguin.
Blender - Penguins to spheres - feet.png

Then switch to the side view ( NUM3 ) and extrude the selection by -0.6 units ( E Region, restrict to the Y axis:  Y ).


Blenderpenguin5-05.png

Keep the selection and look for the Mesh Tools in the Buttons panel. If you can’t see it, press  F9  to switch to this panel. Then click on the Subdivide button (at the top, between Short and Innervert). Or press  W  and choose Subdivide


Blenderpenguin5-06.png

Switch to "Vertex Select Mode", Now select the three middle vertices (or two edges) vertically at the tip of each foot, and drag them along the Y axis by 0.3 units towards the penguin

Note: if something goes wrong here, you may need to remove double first. As always, to move the vertices, either use the manipulator or  G  and  Y  sequence.


Blender - Penguins to spheres - feet selection.png

You should end up with what's shown in the right picture (minus the selection).


Blenderpenguin5-08.png

The feet look too thick, let's flatten them a bit. Switch to the front view ( NUM1 ) and select the two bottom vertex rows (Limit selection to visible off, use either the lasso or box selection).

Blenderpenguin8.gif

Then choose the scale tool ( S ), limit its action to the Z axis ( Z ) and scale down by a factor of 0.4.

The feet still look rather peculiar, so please go ahead and move the vertices around on your own as you like.


Reminder: you can use the  G  and restrict movements to the X or Y axis using the  X  or  Y . Try not to move vertices along the Z axis to keep the penguin's bottom flat.

Extruding a tail[edit]

Blenderpenguin5-09.png
Blenderpenguin5-10.png
Blender - Penguins to spheres - tail.png

To complete the penguin, we have to add a tail (the end of the tuxedo):

  • go to the back view ( CTRL + NUM1 ),
  • make sure you're still in Vertex select mode,
  • and that Limit selection to visible/Occlude background geometry is on.

Select the three middle vertices in the second row up from the bottom. Then, switch to the side view ( NUM3 ) and extrude the edges 0.3 units away from the penguin and 0.08 units down ( E Edges), so that the end of the tail is at the same level as the bottom of the penguin.

Noob Note: Or you can extrude the edges 0.3 units away from the penguin, then  G   Z  -0.08,  LMB  or  ENTER .

Press  CTRL + W  to save your work!

Subsurfing[edit]

Now that's what I call a penguin. But then again, there are no penguins where I live, so I might be wrong.

Go to Object Mode ( TAB ), and make sure the penguin is selected. Then check for the Modifiers toolkit in the Buttons panel. Press Add Modifier → Subsurf (or Press  SHIFT + O ).

Look at the penguin now, he’s much smoother. You can alter the levels of the subsurfing if you like, but I’ll settle for level one. Under the Links and Materials toolkit, you can press the Set Smooth button as well, which makes the penguin really slick.

Note: you may see some weird effects at the bottom and the tail after subsurfing the penguin. If so, there is an issue with normals: they have to be all pointing outwards. This can be achieved by selecting all vertices in Edit Mode and recalculating the normals outside ( CTRL + N ). Click on the message to confirm. Note that  CTRL + SHIFT + N  will turn the normals inwards and that  W  Flip Normals flips them.
Question: The finished penguin looks fine in Object Mode, but when I render it, it looks odd. Quite patchy.
Answer: Make sure you adjust the "Render Levels" parameter (directly under "Levels") to be greater-or-equal than "Levels".

Extra[edit]

The penguin can be colored or textured, but that will be part of later tutorials!