TONAL VALUES/ GRADATION/ COLOUR/ BLENDING/etc.

Credit background image: Moon Phases-1616 by Galileoyh (Public domain USA) 

Credit image: Original source unknown. http://hmh527.wikispaces.com/Lessons

Tonal Value/Gradation/Blending/Colour and other techniques. Tutorials below include sketching/watercolour/colour pencil techniques by TopDog-YouTube  (rendering. etc.):    

What is tonal value?

Definition: In art, tone refers to the degree of lightness or darkness of an area. Tone varies from the bright white of a light source through shades of gray to the deepest black shadows. How we perceive the tone of an object depends on its actual surface lightness or darkness, color and texture, the background and lighting. Tone is may be used broadly ('global tone') to denote the major planes of an object; realist artists use 'local tone' to accurately denote subtle changes within the plane. Credit: http://drawsketch.about.com/od/drawingglossary/g/tone.htm

Sketching Tips: 

*ADDITIONAL: Visit this website for great sketching tips!

http://fgsltwthghoaosj3.weebly.com/tonal-values.html

Exemplars below shows typical rendering work for Design and Visual Communication NCEA Level 1 (Achieved): Achievement Standard 91066: Use rendering to communicate the form of design ideas (Version 3). New Zealand.

Exemplar 1 A: Soft pencil (6B) sketching and rendering: Sustainable Sleep-out-Achieved

Exemplar 1 B: Soft pencil (6B) sketching and rendering: Sustainable Sleep-out. This is sketch two of the unit of work (Exemplar 1).

Exemplar 2: Soft pencil (6B) and promarkers used for the completion of this task. 3-D sketching and rendering: Sustainable Sleep-out. Achieved.

Exemplar: Excellence (3 pages). DVC NCEA LEVEL 1 (NZ) -2015. Credit-Lyn Paton

Exemplar 3: DVC NCEA Level 1 (2015): Page 1 of 3 .Soft pencil (6B) and pro-markers used for the completion of this task. 3-D sketching and rendering: Sustainable Sleep-out. Excellence. Credit Lyn Paton.       

Exemplar 3: DVC NCEA Level 1 (2015): Page 2 of 3 .Soft pencil (6B). EXPLODED VIEWS: 3-D sketching and rendering: Sustainable Sleep-out. Excellence. Credit Lyn Paton.

Exemplar 3: DVC NCEA Level 1 (2015): Page 3 of 3 .Soft pencil (6B). 3-D sketching and rendering with possible roof shapes: Sustainable Sleep-out. Excellence. Credit Lyn Paton.         

To get an excellence or merit grade students have to include a rendered sectional view of their sustainable sleep-out. Credit:  Hand rendered entrance sequence sectional study by Joseph Coulter. http://josephcoulter.co.uk/ Pinterest- http://archidose.tumblr.com/post/84916205885/hand-rendered-entrance-sequence-sectional-study. Remember to annotate (label) all the building material and components in detail!   

*Saved from feedly.com



Stage 1: Typical 3-D sketch in soft pencil (6B). This is the initial step to complete the rendering task. This task is incomplete and requires rendering (shadows and shading) with a chosen light source. Students have to choose the position of the light source (sun) before attempting the rendering. Using only soft pencils (6B), are fine to complete this task. The use of pro-markers and other media (acrylic paint, charcoal, colouring pencils, etc.) are optional.     

Typical basic rendering media: 'Letraset Promarkers' ('vivid pens') with soft pencils (6B, 4B and HB), sharpener and eraser. The promarkers have a twin tip; it includes a sharp round point on one end and a flat ('chisel' shape) point on the other end.

To inspire students: 'Concept sketches for a human-electric hybrid vehicle. These concepts show early ideas as well as some more detailed illustrations, including exploded views, suspension diagrams, and a rendering of a wooden design that was nearly prototyped. (Please refer to my Master's thesis for more information on that last bit-David Parrott)' . For DVC students to obtain an excellence mark your rendering/ideation/generate design ideas should include some illustrations as shown in this image. Challenging! You could use ink pens... Search YouTube for tutorials, if you are interested. Credit: http://davidparrottdesign.com/transportation/ David Parrott comments (text from his website): 'The images below are from various transportation projects I've worked on over the past several years'. Visit his website for more design communication ideas and some of his design work.  For architectural application just use different buildings and sections or parts (exploded views)of the building to communicate your ideas. Use some of David Parrott's ideas.     

More inspiration: Saved from Pinterest-https://nz.pinterest.com/pin/401453754258469197/ and https://nz.pinterest.com/source/architectureadmirers.com. Pinterest is a great website to visit!!! Register and browse images...

Credit: architectureadmirers.com



Marking Schedule: 

Design and Visual Communication NCEA Level 1 (Achieved): Achievement Standard 91066: Use rendering to communicate the form of design ideas (Version 3). New Zealand.

Download the PDF marking schedule for AS 91066 which includes a description of achieved, merit and excellence grades:

IMPORTANT: Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

 

See more exemplars (achieved, merit & excellence) on the TKI (New Zealand website) for AS 91066-Rendering: * More exemplars are available for other Design and Visual Communication standards. See DVC achievement standards: 91067, 91068 &  91069, 

https://ncea.tki.org.nz/Resources-for-Internally-Assessed-Achievement-Standards/Technology/Level-1-Technology


TUTORIALS: RENDERING-Published on Jun 16, 2013 to YOUTUBE

A series of videos showing options for drawing and colouring, with different techniques. Credit Topdog-YouTube. Video tutorials includes: tonal values, grading, - Part 1 to part 8 
Part 3 and part 4 of these tutorials below are specifically relevant for this rendering task (Achievement Standard 91066 NCEA Level 1): 'Use rendering techniques to communicate the form of design ideas'
   
Part 3:
I cover Tonal value areas created by Hatchings/Cross-Hatching, Contour Lines and Stipple Dots.
The lessons will cover the 'Colour Circle' and will work with the 'Colour Buster' chart that I'll show later. You are able to purchase this and, It's a instant download that you can print off and laminate straight away. 
Here is the link for it and where you can read and watch the video demo:
http://www.paintbasket.com/tools/colo...

Published on Jun 18, 2013

A series of videos showing options for drawing and colouring, with different techniques.

Part 4:
I cover Tonal value areas created by Hatchings/Cross-Hatching, Contour Lines and Stipple Dots
Topdog Channel: https://www.youtube.com/user/Topdoginuk 
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