shade 1st lines 3in1
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shadow of linesTRANSCRIPT
9/24/2013
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Shade & Shadows
Academic Year 2013-2014
Dr. Abeer Mohammad Mostafa
Dr.Abeer Mostafa
: Sciagraphy & Perspective113ARC
1.Shade & Shadows
Shade &Shadows
1 Introduction
Why? Course Aims& Objectives Understanding the significance of shades& shadows in perceiving
compositions.
Developing skills
of representation
and rendering via
casting shades and
shadows in
architectural
drawings for
efficiently
expressing
architectural
compositions.
Dr.Abeer Mostafa
Shade &Shadows
1 Introduction
Why? Course Aims& Objectives Understanding the significance of shades& shadows in perceiving
compositions.
Dr.Abeer Mostafa
9/24/2013
2
Shade &Shadows
1 Introduction
Shadeالظل أوالظل الذاتي أي الذي يتكون على نفس المجسم نتيجة تكوينه أو بروزاته
Shade (or self shading) is the shade created by an object on its own surface (s) due to its own form or projection (s))
Shadowالظالل هي المناطق المظللة على أسطح خارجية وال يصلها الضوء نتيجة اعتراضه
تتكون الظالل نتيجة تقاطع اشعة الضوء مع شيء يعترضها ثم وصولها لسطح تتكون عليه الظالل
Shadow is created by an object on other surface (s) (due to its obstructing of light)
What? Definitions
astronomical unit (AU)
The average distance from the Earth to the Sun; 1 AU is 149,597,870 kilometers (92,960,116 miles).
Dr.Abeer Mostafa
Shade &Shadows
1 Introduction
How?
astronomical unit (AU)
The average distance from the Earth to the Sun; 1 AU is 149,597,870 kilometers (92,960,116 miles).
Casting Shade/ shadow
Expressing (drawing) Shade&shadow
D2 D3
Dr.Abeer Mostafa
Shade &Shadows
1 Introduction
How?
astronomical unit (AU)
The average distance from the Earth to the Sun; 1 AU is 149,597,870 kilometers (92,960,116 miles).
Ground Line
Front View (Elevation)
Top View (Plan)
orthographic Projection)(D 2
Ground Line
Front View (Elevation)
Top View (Plan)
Side View
(Elevation or Section)
D3
Dr. Abeer Mostafa
9/24/2013
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Shade &Shadows
1 Introduction
How? 3D Isometric D3
30o 30o
30o 30o
Front View (Elevation)
Top View (Plan)
Front View (Elevation)
Side View
Top View (Plan)
Dr.Abeer Mostafa
Shade &Shadows
1 Introduction
How? Front View (Elevation)
Top View (Plan)
D3 D2
Ground Line
Front View (Elevation) Side View
Top View (Plan)
45o 45o
45o
Remember light beam projections’ angles: 45o
Light Beam Direction& projections
Dr.Abeer Mostafa
Shade &Shadows
1 Introduction
How? Front View (Elevation)
Top View (Plan)
D3 3D Isometric
30o
60o
0o
Remember light beam angles in Isometric: 30o
In front (vertical projection): 60o
In Plan : Horizontal 0o
Light Beam Direction& projections
Dr.Abeer Mostafa
9/24/2013
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Shade &Shadows
1 Introduction
How? 3D Isometric
30o
60o
0o
Light beam angles in Isometric: 30o
In front (vertical projection): 60o
In Plan : Horizontal 0o
Light Beam Direction& projections
D2
Ground Line
Front View (Elevation) Side View
45o 45o
45o
Light beam projections’ angles: 45o
Top View (Plan)
Front View (Elevation) Side View
Top View (Plan)
Dr.Abeer Mostafa
Shade &Shadows
1 Introduction
How? Objects that cast shadows
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Planes Lines
Three dimensional
forms
Points
Dr.Abeer Mostafa
Shade &Shadows
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ظالل النقاط
Shadows of Points
Dr.Abeer Mostafa
9/24/2013
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Shade &Shadows
1 Shadows of Points
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A
D3 D2
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Dr.Abeer Mostafa
Shade &Shadows
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D3 D2
A
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Shadows of Points
Dr.Abeer Mostafa
Shade &Shadows
1 Virtual shadow
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A
D3 D2
A
A
A A/
A// +
+ A
+ A/ A//
+
Shadows of Points
Dr.Abeer Mostafa
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Shade &Shadows
1 Virtual shadow
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A
D3
D2
A
A
A
A
A/
A/ A// + +
A// +
Shadows of Points
ظل نقطة على مستوى يالصقها يقع على نفس النقطة :قاعدة
Rule: The shadow of a point on a plane that it lies in, lies at
the same point Dr.Abeer Mostafa
Shade &Shadows
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ظالل الخطوط
Shadows of Lines
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Shade &Shadows
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A A
A
A
A
A/
A/
B
B
B
B/
B
B
B/
Shadows of Lines
Dr.Abeer Mostafa
9/24/2013
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Shade &Shadows
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A
A
A
A
A A
/ A
/
B
B
B/
B
B
B/
Shadows of Lines
A//
A
//
B
Dr.Abeer Mostafa
Shade &Shadows
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A
A
A
A
A
A/
A/
B
B
B B
/
B
B
B/
Shadows of Lines
B//
B//
Dr.Abeer Mostafa
Shade &Shadows
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أنواع الخطوط
Dr.Abeer Mostafa
9/24/2013
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Shade &Shadows
1
A
A
A
A
A A
/
A/
B
B
B
B/
B
B
B/
Shadows of Lines
ظل خط عىل مس توى موازي هل هو خط بنفس طول واجتاه اخلط الأصيل :قاعدة
Rule: The shadow of a line on a plane that’s parallel to it is a
line whose length and direction are the same as the original line.
Dr.Abeer Mostafa
Shade &Shadows
1 A A
A
A
A
A/
A/
B
B
B
B/
B
B
B/
Shadows of Lines
A
A
B
B
B/
A/
+
+
+
B//
A
A
A/
B
B B/
+
B//
فقي)ظل اخلط الرأأيس :قاعدة عىل املس توى الرأأيس يوازيه، وعىل املس توى الافقي مع اجتاه : (العمودي عىل الأفقي لشعاع الضوء املسقط الأ
فقي : ابملثل فقي يوازيه، وعىل املس توى الرأأيس: (العمودي عىل الرأأيس)ظل اخلط الأ مع اجتاه : عىل املس توى الأ Dr.Abeer Mostafa املسقط الرأأيس لشعاع الضوء
Shade &Shadows
1
Dr.Abeer Mostafa