Let's make following the tail fin of the dolphins using TATARA.
I made the tail fin of the dolphin by TATARA 4.0. Let's make the tail fin of the dolphin by this article more simply using the function added by TATARA5.0.
To make this, I prepared following the background image of the tail fin of the dolphin.
Let's make the tail fin of the dolphin from the following steps.
1) Choose 32x32 of CYLINDER by New on the File menu.
2) Make the form of the section of the tail fin on MAGE mode.
3) Modify the form of the section of the tail fin on TOKOROTEN mode.
4) Make the form of the tail fin on MAGE mode.
5) Upload to the in-world.
Let's make the tail fin of the dolphin.
Boot TATARA and choose New on the File menu.
In the dialog displayed, choose 32x32 of CYLINDER and click the OK button.
Choose the MAGE tab and change edit mode into MAGE.
Let's use Gird so that the pair control points can be arranged horizontally easily.
Set Gird on the View menu as one.
Choose Load Background on the View menu and display the following background image. 
The edit pane is displayed as follows.
Choose Fin on the Section menu. 
If you choose SQUARE - Fin with the Section menu, arrangement of the control points of the section will get the always selected form.
The preview pane is displayed as follows.
To edit the form of the section in TOKOROTEN mode, choose Normal on the Section menu. 
The section which you are editing does not change.
Let's edit the section in TOKOROTEN mode.
Choose the TOKOROTEN tab and change edit mode into TOKOROTEN.
To edit easily, set Edit Level in the lower part of an Edit pane as Middle.
Rearrange control points as follows.
To edit round gray control points, set Edit Level in the lower part of an Edit pane as Near.
Rearrange two control points shown in yellow area so that a section gets smooth.
Let's copy right-hand side to left-hand side.
Choose Mirror 80-GG from 00-7G on the Edit menu.
Click the ZX button of the displayed dialog box.
The edit pane is displayed as follows. 
You can check that yellow area has been copied.
Let's return to MAGE mode and make the form of the tail fin of the dolphin.
Choose a MAGE tab and change edit mode into MAGE.
To edit easily, set Edit Level in the lower part of an Edit pane as Middle.
As follows, rearrange the control points.
As follows, rearrange the control points.
As follows, rearrange the control points.
As follows, rearrange the control points.
As follows, rearrange the control points.
As follows, rearrange the control points.
As follows, rearrange the control points.
As follows, rearrange the control points. Please arrange two control points on the certainly red axis line (yellow area).
Let's smooth the form of the tail fin of the dolphin more.
To edit round gray control points, set Edit Level in the lower part of an Edit pane as Near.
Rearrange the round gray control points shown in yellow area.
Let's copy an upper side to the lower side.
Choose Mirror 08-GG from 00-G7 on the Edit menu.
Click the XY button of the displayed dialog.
Let's save this sculpt map file and upload to an in world.
Let's check Setup before saving it.Choose Setup on the File menu.
Set TGA Save Size as 64x64 in the displayed dialog.
And let's check the following items.
-Copy Protection by transparent When a Prim is modified, you can make it transparent to prevent the texture from being copied by screen capture.
-Auto Maximize The object saved when you save a sculpt map file is maximized automatically. 
If you check Auto Rename, overwrite of a sculpt-map file is prevented.
Let's save a sculpt-map file in TGA File format.
Select Save on the File menu.
Select TGA File of SaveDialog and save the file.
Let's upload the sculpt-map file to the in-world.
When you upload a sculpt-map file, be sure to choose Upload Image.
It costs 10L$ to upload one Sculpt-Map file.
Choose Upload - Image (L$10) on the Build menu.
Check it by preview. Check Use lossless compression.
Set Building Block Type of an object to Sculpted.
And apply the sculpt map uploaded to it.
Set Stitching Type as Cylinder.
Adjust the scale of object.
The tail fin of the dolphin was completed.
Original text: http://kanaenet.blogspot.com/2010/09/blog-post_06.html
This article is automatically translated by the computer interpreter.
Please notify me of any mistakes in translation.
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