DOI: 10.13140/RG.2.2.28908.51841 https://www.researchgate.net/publication/337062937_BLENDER_TUTORIAL_SWEEP_ROUND_SHAPES - Blender is the free and open source 3D creation suite. It supports the entirety of the 3D pipeline—modeling, rigging, animation, simulation, rendering, compositing and motion tracking, even video editing and game creation. https://www.blender.org/. - Blender software. 2.79b Version. About, License & Development. https://www.researchgate.net/publication/328677236_Blender_software_279b_Version_About_License_Development - Modern accessible application of the system Blender in 3D design practice. https://www.researchgate.net/publication/312033613_Modern_accessible_application_of_the_system_Blender_in_3D_design_practice

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BLENDER TUTORIAL. SWEEP ROUND SHAPES
Presentation · November 2019
DOI: 10.13140/RG.2.2.28908.51841
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2. BLENDER TUTORIAL. SWEEP
ROUND SHAPES
Assoc. Prof. Tihomir Dovramadjiev PhD Eng.
Technical University of Varna
Department Industrial Design
tihomir.dovramadjiev@tu-varna.bg

3. 2019 2
BLENDER SOFTWARE
- Blender is the free and open source 3D creation suite. It supports the entirety of the 3D pipeline—
modeling, rigging, animation, simulation, rendering, compositing and motion tracking, even video
editing and game creation. https://www.blender.org/.
- Blender software. 2.79b Version. About, License & Development.
https://www.researchgate.net/publication/328677236_Blender_software_279b_Version_About_Licen
se_Development
- Modern accessible application of the system Blender in 3D design practice.
https://www.researchgate.net/publication/312033613_Modern_accessible_application_of_the_syste
m_Blender_in_3D_design_practice

4. 2019 3
Geometry / Bevel Object
Bevel Object
The Bevel Object controls the cross section of the extruded curve. The Bevel Object can only be another curve
both 2D or 3D, and opened or closed. Editing the handles and control points of the Bevel Object will cause the
original Object to change shape.
https://docs.blender.org/manual/en/2.79/modeling/curves/properties/geometry.html

5. 2019 4
Geometry / Bevel Factor
Bevel Factor
Mapping
Allows to control the relation between bevel factors (number between 0 and 1) and the rendered start and end
point of a beveled spline. Map the bevel factor:
Resolution
To the number of subdivisions of a spline (U resolution).
Segments
To the length of its segments. Mapping to segments treats the subdivisions in each segment of a curve as if they
would have all the same length.
Spline
The length of a spline.
Start, End
These options determine where to start/end the Bevel operation on the curve. This allows to make a bevelled
curve which is not fully covered with a bevel.
Increasing the Start Bevel Factor to 0.5 will start beveling the curve 50% of the distance from the start of the curve
(in effect shortening the curve). Decreasing the End Bevel Factor by 0.25 will start beveling the curve 25% of the
distance from the end of the curve (again, shortening the curve).
https://docs.blender.org/manual/en/2.79/modeling/curves/properties/geometry.html

6. 2019 5
Geometry / Caps
Caps
Fill CapsSeals the ends of a beveled curve.
https://docs.blender.org/manual/en/2.79/modeling/curves/properties/geometry.html

7. 2019 6
Geometry / Taper
Taper Object
The taper curve is evaluated along the local X axis, using the local Y axis for width control. Note also that: Tapering a curve causes it
to get thinner towards one end. You can also alter the proportions of the Taper throughout the tapered object by
moving/scaling/rotating the control points of the Taper Object. The Taper Object can only be another curve. Editing the handles and
control points of the Taper Object will cause the original Object to change shape.
Map Taper
For curves using a Taper Object and with modifications to the Start/End Bevel Factor the Map Taper option will apply the taper to the
beveled part of the curve (not the whole curve).
Details
•It must be an open curve.
•The taper is applied independently to all curves of the extruded object.
•Only the first curve in a Taper Object is evaluated, even if you have several separated segments.
•The scaling starts at the first control point on the left and moves along the curve to the last control point on the right.
•Negative scaling, (negative local Y on the taper curve) is possible as well. However, rendering artifacts may appear.
•Might need to increase the curve resolution to see more detail of the taper.
•With closed curves, the taper curve in Taper Object acts along the whole curve (perimeter of the object), not just the length of the
object, and varies the extrusion depth. In these cases, you want the relative height of the Taper Object Taper curve at both ends to be
the same, so that the cyclic point (the place where the endpoint of the curve connects to the beginning) is a smooth transition.
https://docs.blender.org/manual/en/2.79/modeling/curves/properties/geometry.html

8. 2019 7
Add: Bezier Circle + Profile + Rectangle + Star
BezierCircle + Profile Shapes (Profile, Rectangle and Star)

9. 2019 8
3D Model (BezierCircle + Star Shape)
Object Mode / Wireframe. BezierCircle > Object Data (Type of active data to display and edit) > 3D
Fill: Full and Defines the bevel shape (Bevel Object: Star + U)

10. 2019 9
3D Model (BezierCircle + Star Shape)
Object Mode. BezierCircle > Object Data (Type of active data to display and edit) > 3D Fill: Full and
Defines the bevel shape (Bevel Object: Star + Fill Caps without U)

11. 2019 10
3D Model (BezierCircle + Rectangle Shape)
Object Mode / Wireframe. BezierCircle > Object Data (Type of active data to display and edit) > 3D
Fill: Full and Defines the bevel shape (Bevel Object: Rectangle + U)

12. 2019 11
3D Model (BezierCircle + Rectangle Shape)
Object Mode. BezierCircle > Object Data (Type of active data to display and edit) > 3D Fill: Full and
Defines the bevel shape (Bevel Object: Rectangle + Fill Caps without U)

13. 2019 12
3D Model (BezierCircle + Profile Shape)
Object Mode. BezierCircle > Object Data (Type of active data to display and edit) > 3D Fill: Full and
Defines the bevel shape (Bevel Object: Profile + Fill Caps + U)

14. 2019 13
3D Model (BezierCircle + Profile Shape)
Object Mode. BezierCircle > Object Data (Type of active data to display and edit) > 3D Fill: Full and
Defines the bevel shape (Bevel Object: Profile + Fill Caps without U)

15. 2019 14
3D Model (BezierCircle + Profile Shape)
Resolution / Preview U: 12

16. 2019 15
3D Model (BezierCircle + Profile Shape)
Resolution / Preview U: 2

17. 2019 16
3D Model (BezierCircle + Profile Shape)
Resolution / Preview U: 1

18. 2019 17
3D Model (BezierCircle + Profile Shape)
Resolution / Preview U: 1 + U (Make the curve or surface a closed loop in the U direction)

19. 2019 18
3D Model (BezierCircle + Profile Shape)
Edit Mode / Wireframe

20. 2019 19
3D Model (BezierCircle + Profile Shape)
Toggle Quad View & Edit Mode / Wireframe

21. 2019 20
3D Model (BezierCircle + Profile Shape)
Rendered Result

22. 2019 21
3D Model (BezierCircle + Rectangle Shape)
Toggle Quad View & Edit Mode / Wireframe

23. 2019 22
3D Model (BezierCircle + Rectangle Shape)
Rendered Result

24. 2019 23
3D Model (BezierCircle + Star Shape)
Toggle Quad View & Edit Mode / Wireframe

25. 2019 24
3D Model (BezierCircle + Star Shape)
Rendered Result

26. 2019 25
REFERENCES
- Blender Software. https://www.blender.org/
- Tihomir Dovramadjiev PhD. Modern accessible application of the system Blender in 3D design
practice.
https://www.researchgate.net/publication/312033613_Modern_accessible_application_of_the_system_Blender_in_3D_design_practice
- Blender software. 2.79b Version. About, License & Development. DOI: 10.13140/RG.2.2.36167.75687
https://www.researchgate.net/publication/328677236_Blender_software_279b_Version_About_License_Development
- Blender 2.79 Reference Manual. https://docs.blender.org/manual/en/2.79/index.html
- Blender Geometry https://docs.blender.org/manual/en/2.79/modeling/curves/properties/geometry.html
- Apace OpenOffice. http://www.openoffice.org/download/
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