Simple Animated Fan

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Simple Animated Fan

Post by froo » 29 Jul 2009, 21:44

Hi everyone. This scene show the progression of a simple fan, created from a basic cylinder.
There are just a few steps. The steps are demonstrated in the attached scene.

1. Start with a basic cylinder.

2. position the cylinder at 0,0,0, and set the ground to: Wire. This makes it easy to see the
axes. That in turn makes it easy to get your fan blades straight in the next step. :D

3. edit the cylinder. For the +x axis, select the two faces that straddle the axis.
X axis is green, Y axis is blue. So you Ctrl-click the two faces to select them both.

4. translate these two faces outwards about 2 units, til the face lines up with a grid line

5. Repeat step 4 for the other axes: -x, +y, and -y.

6. When done, your object will look like a big "Plus" sign, like the 2nd object in the transition, in the scene.

7. Now select the top face of your object, and translate it down, to make the fan shorter.

8. With this face still selected, rotate the top face until you are happy with the result.

9. Right click anywhere in 3d space to exit edit mode.

10. Congratulations! You just created a nice looking fan. Now let's animate it.

11. Open the Link Editor. In the scene, you can see I have already expanded the matrix of our cylinder by
right clicking the 'Matrix' connector, and selecting 'Expand'. This gives us access to the individual transform elements.

12. Add a timer event. This is found in the Library: Activity - Events. You open the Library window by clicking the Library icon.
This is in the bottom row of icons, and looks like a Magnifying glass and folder. Double click "Activity - Events" in the window that opens. When you do, the Events library is added to the Library panel in the main interface.

13. Drag and drop the timer event into the link editor.

14. Next, add a Math - Binary Op node, from the Math - Operations library. To view the Math-Operations library, perform the same steps as in (12), except select Math - Operations

Now we're ready to work in the Link Editor (LE).

15. Connect the Timer's Time output connector to the A input on the BinaryOp node. You do this by click-dragging on the blue connector of the Timer Event, and dragging to the red 'A' connector on the Binary Op node. You will see a curvey line created.
You will know you have a 'connection' when the background of the 'A' on the BinaryOp node changes its grey color; it gets lighter. So now you have that connection.

16. Next, connect the 'Result' connector of the BinaryOp to the 'yaw' connector of the ExpandedIn node. The ExpandedIn node is the expanded matrix which we generated in step 11.

17. To activate the animation, select the 'Active' checkbox on the timer. Notice how your fan is now rotating. It may be moving pretty slow though, so let's change that.

18. You do not have to deselect the 'Active' checkbox on the Timer Event to do this step; the timer updates its output connectors, and thus, all connected nodes, on each timer pulse. The frequency of the update is determined by the Period textbox in the Timer Event. So change that Period to 30, then press Enter.

19. The fan is moving a little faster, but let's make it go even faster. That is the purpose of the BinaryOp we added, in this case. Change the 'B' parameter on the BinaryOp to 25, then press Enter. Notice how the fan is moving faster now.

20. Make some changes to the 'B' parameter to either increase or slow down the fan movement.

21. To get really smooth animation, set the Period to 15 on the timer.

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Re: Simple Animated Fan

Post by Prodigy » 01 Aug 2009, 04:47

Great Tut Jason :)

In addition, here is another vid tutorial about how create the fan, and how use SDS to make it Low ~ High polygon in a few minutes..

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Re: Simple Animated Fan

Post by DesignDevil » 01 Aug 2009, 10:11

haha ... patrick from SpongeBob - funny,

great tutorial, especially for beginners.
I still use TrueSpace 6.6
Link: My Youtube Channel
Link: www.DesignDevil.de - Plugins, Tutorials and more about TrueSpace 6.6

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Re: Simple Animated Fan

Post by froo » 01 Aug 2009, 14:08

Whoooah! Looks like I've got me some practicin to do! !!!
Haha Very Nice Augusto. Very nice. :bananacheers:

Say, could you post the model please?

Oh btw I see the OBJ Importer icon in the background too! :D

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Re: Simple Animated Fan

Post by Prodigy » 01 Aug 2009, 15:37

:)
Yes, the idea is share some basic steps, most for beginners and for workspace side.. But im thinking to create a LE tutorial.
You know, i think there's no good tutorials to show how simple and powerful LE (Llink Editor) it is.. So my intention is show how LE Works, and how can improve ALL your work..

Froo:
Here is the model, and yes! sure Your OBJ importer RULES MAN!! im gonna start to sell OBJ models on Turbosquid so your plug is a must on my toolset! :worship:
fan.rar
(17.11 KiB) Downloaded 55 times
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froo
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Re: Simple Animated Fan

Post by froo » 01 Aug 2009, 16:57

Cool thanks Augusto! :D

Speaking of LE tutorials, I have that one in PowerPoint format; I can post it here as well. :D

I am glad you like the OBJ Importer/Exporter.
I have another project to work on now; but I will add on to the exporter shortly. :D
Plus I am reviving some of those beta projects I was testing with. :D

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Re: Simple Animated Fan

Post by froo » 01 Aug 2009, 22:09

Say; how did you get the text to show up on the video like that Prodigy?
Which app did you use for the video editing? That's pretty cool. I like that idea.

Froo

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Re: Simple Animated Fan

Post by Prodigy » 01 Aug 2009, 22:52

Youtube has that option.. once you have the video online, youtube has options to add comments over the video and also if you don't have a audio track or sound on your tutorial, you can select a free audio track from a list..

Very cool indeed..

I use camtasia 3 to capture the video, no editing involved :D
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Re: Simple Animated Fan

Post by Prodigy » 15 Aug 2009, 02:11

Additional tutorial about how to fake the motion of a propeller using truespace and Photopaint

scene.rar
(337.52 KiB) Downloaded 59 times
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Re: Simple Animated Fan

Post by DesignDevil » 15 Aug 2009, 10:04

Cool. I love simple technics to get good looking results - fantastic.
I still use TrueSpace 6.6
Link: My Youtube Channel
Link: www.DesignDevil.de - Plugins, Tutorials and more about TrueSpace 6.6

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