light and volume
DESCRIPTION
LIGHT AND VOLUME. How would you represent the light on an object , for example , on a cone ?. INFLUENCE OF LIGHT IN SPATIAL PERCEPTION. Light is a natural or artificial physical phenomenon that allows us to see and distinguish objects that surround us . - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/1.jpg)
LIGHT AND VOLUME
![Page 2: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/2.jpg)
•How would you represent the light on an object, for example, on a cone?
![Page 3: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/3.jpg)
INFLUENCE OF LIGHT IN SPATIAL PERCEPTION•Light is a natural or artificial physical
phenomenon that allows us to see and distinguish objects that surround us.
•When light shines on an object, it creates areas of light and shadow.
•If the light changes, the perception of the object changes as well.
![Page 4: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/4.jpg)
TYPES OF LIGHT•NATURAL LIGHT•ARTIFICIAL LIGHT
![Page 5: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/5.jpg)
NATURAL LIGHT•How does natural light change?•What factors have an influence on it?
![Page 6: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/6.jpg)
NATURAL LIGHT•Comes from the sun•The tones change depending on
▫The time of day▫The season of the year▫The weather▫The geographic location
![Page 7: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/7.jpg)
![Page 8: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/8.jpg)
ARTIFICIAL LIGHT•How can we produce artificial light?
![Page 9: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/9.jpg)
ARTIFICIAL LIGHT•Produced by humans•The sources have changed
throughout history.▫Fire (bonfire, torch,
candlelight, lanterns)▫Electricity (fluorescent
lights, lamps, electric lanterns, flashlight)
▫LEDs
![Page 10: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/10.jpg)
THE DIFFERENCE•The biggest difference between the two
types of light is that they produce distinct types of shadows.▫Natural light produces parallel rays▫Artificial light produces conic rays
•This is the reason why the shadows are different.
•Can you think of other differences?
![Page 11: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/11.jpg)
FLUORESCENT
Artificial light
LESS CONSUMPTION
LIGHT BULB
![Page 12: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/12.jpg)
LED BULB
FIREWORKS
![Page 13: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/13.jpg)
FLASHLIGHT (Am E)TORCH ( Br E)
SODIUM LIGHTNING
CANDLE LIGHT
![Page 14: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/14.jpg)
DIFFERENT POSITIONS OF THE LIGHT SOURCE
•Front lighting•Light from above
•Side lighting•Backlighting
![Page 15: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/15.jpg)
FRONT LIGHTING•There is sensation of volume and depth is
minimal.
![Page 16: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/16.jpg)
![Page 17: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/17.jpg)
![Page 18: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/18.jpg)
LIGHT FROM ABOVE•Gives us a sensation of tranquility.•Gives us a sensation of reality because it
is the type of lighting we are used to.
![Page 19: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/19.jpg)
![Page 20: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/20.jpg)
![Page 21: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/21.jpg)
![Page 22: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/22.jpg)
SIDE LIGHTING•Creates a sensation of mystery or drama•Produces a high contrast between the
illuminated area and mystery in the shaded area
•Johannes Vermeer
![Page 23: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/23.jpg)
![Page 24: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/24.jpg)
![Page 25: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/25.jpg)
![Page 26: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/26.jpg)
BACKLIGHTING•We can only see the background and the
silouettes of the figures
![Page 27: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/27.jpg)
![Page 28: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/28.jpg)
![Page 29: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/29.jpg)
![Page 30: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/30.jpg)
Chiaroscuro• Value describes volume and depth of space In
Europe artists of the Renaissance were concerned with showing depth and volume in opposition to the artists of the Middle or “Dark Ages.”
• Men of the Renaissance considered their time period to be the Age of Reason and rebirth of artistic and mathematical achievements.
• Renaissance artists manufactured the term “Chiaroscuro” to describe how light and dark can imply depth and volume.
![Page 31: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/31.jpg)
•The word Chiaroscuro is a combination of two Italian words that mean light and dark. (chiaro (clear, light) + oscuro (obscure, dark)
•Atmospheric or Ariel perspective was one of the artistic strategies used in the study of Chiaroscuro during the Renaissance.
![Page 32: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/32.jpg)
Light Sources and Shadows
•A light projected onrc an object or figure creates lights, darks, and cast shadows. Your source of light may be the sun, the moon, a light through a window or an artificial light. When several light sources are present the light and dark tones vary and are less predictable.
![Page 33: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/33.jpg)
Two Kinds of Shadows•Cast Shadow: when an object blocks a
light source it casts a shadow. A cast shadow is not a solid shape but varies in tone and value.
•Form Shadow: A form shadow is the less defined dark side on an object not facing the light source. This shadow has softer less defined edges than a cast shadow.
![Page 34: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/34.jpg)
![Page 35: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/35.jpg)
THE LIGHT SIDE IN TWO PARTS•Highlight: The lightest spot is where the light
hits the subject in exactly the middle of the light side between the shadow edge and the edge of the object. A highlight can be shiny and defined on a glass or metallic surface, orfuzzy on a dull or textured surface.
•Light middle tones: To avoid confusion, “always”keep the values on the light side lighterthan the values on the dark side.
![Page 36: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/36.jpg)
![Page 37: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/37.jpg)
Reflected light•If the object being painted is sitting on a
white table, the light from the table reflects back onto the object and makes the shadow side lighter.
![Page 38: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/38.jpg)
![Page 39: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/39.jpg)
![Page 40: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/40.jpg)
![Page 41: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/41.jpg)
![Page 42: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/42.jpg)
![Page 43: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/43.jpg)
•Manet’s Painting, “The Railway” shows value contrast in composition, but the sensation of space is diminished when there are many light sources.
![Page 44: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/44.jpg)
![Page 45: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/45.jpg)
What kind of lighting do these two images have?
![Page 46: LIGHT AND VOLUME](https://reader035.vdocuments.site/reader035/viewer/2022081507/5681606e550346895dcf9485/html5/thumbnails/46.jpg)
Notan• Notan is a Japanese word meaning dark-light.
The principle of Notan is the interaction between positive (light) and negative (dark) space. This interaction is confirmed by the ancient Chinese symbol of Yin and Yang.