COMP SCI 352COMP SCI 352

Computer Graphics Computer Graphics and Animationand Animation

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My name is …My name is … How to find meHow to find me Course PoliciesCourse Policies BackgroundBackground Your turnYour turn

IntroductionsIntroductions

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The room will be locked but students who take a class in that The room will be locked but students who take a class in that room will have card access during the following times as long as room will have card access during the following times as long as no class is in session:no class is in session:– 1. Monday through Friday. 7:00 AM - 9:30 PM.1. Monday through Friday. 7:00 AM - 9:30 PM.– 2. Saturday and Sunday 9:00 AM through 4:30 PM2. Saturday and Sunday 9:00 AM through 4:30 PM

There is no access during other hours.There is no access during other hours. The computers are to be used for course work only.The computers are to be used for course work only. Students are NOT to use the instructor workstations nor the Students are NOT to use the instructor workstations nor the

projection equipment. We CAN check who logged into them.projection equipment. We CAN check who logged into them. No software is to be installed on any of the machines. Installing No software is to be installed on any of the machines. Installing

software will result in your access being revoked. Be aware, that software will result in your access being revoked. Be aware, that it is easy to find out who was logged into a machine when it is easy to find out who was logged into a machine when unauthorized software was installed.unauthorized software was installed.

No food or drink is allowed in the room at any time.No food or drink is allowed in the room at any time. No one who does not have card access should be let into the No one who does not have card access should be let into the

room.room.

Mac 122 PoliciesMac 122 Policies

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Cathode Ray Tube (CRT)Cathode Ray Tube (CRT)

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Raster Scan DisplayRaster Scan Display

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Scan Line InterlacingScan Line Interlacing

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Random Scan Display: Random Scan Display: Vector GraphicsVector Graphics

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Turtle GraphicsTurtle Graphics

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Color PixelColor Pixel

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Shadow Mask CRTShadow Mask CRT

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Additive ColorsAdditive ColorsRed, Green, Blue = RGBRed, Green, Blue = RGB

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Subtractive ColorsSubtractive ColorsCyan, Magenta, YellowCyan, Magenta, Yellow

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Color WheelColor Wheel

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The Utah TeapotThe Utah Teapot

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Vertex and Line Drawing ModesVertex and Line Drawing Modes

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Vertex and Line Drawing ModesVertex and Line Drawing Modes

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Polygon Drawing ModesPolygon Drawing Modes

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GLUT ObjectsGLUT Objects

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Shapes DemoShapes Demo

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Transformations DemoTransformations Demo

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Synthetic Camera ModelSynthetic Camera Model

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Synthetic Camera ModelSynthetic Camera Model

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Orthographic ProjectionOrthographic Projection

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Perspective ProjectionPerspective Projection

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Projection (Viewing) PlaneProjection (Viewing) Plane

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OpenGL Rendering PipelineOpenGL Rendering Pipeline

(GL_PROJECTION)

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View Volume Projection and View Volume Projection and ClippingClipping

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OpenGL MatricesOpenGL Matrices

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Effect of the Modelview MatrixEffect of the Modelview Matrix

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Effect of the Projection MatrixEffect of the Projection Matrix

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Effect of the Viewport MatrixEffect of the Viewport Matrix

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Projection DemoProjection Demo

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Visual RealismVisual Realism

Hidden face removalHidden face removal LightingLighting ShadingShading Material propertiesMaterial properties ShadowsShadows

Visual realism is achieved byVisual realism is achieved by

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Hidden Face RemovalHidden Face Removal

Wireframe scene without and with hidden face Wireframe scene without and with hidden face removalremoval

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Flat ShadingFlat Shading

Wireframe scene and rendering with flat shadingWireframe scene and rendering with flat shading

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Smooth Shading and Lighting Smooth Shading and Lighting EffectsEffects

Smooth shading, specular light and shadowsSmooth shading, specular light and shadows

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Light and Materials DemoLight and Materials Demo

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Texture MappingTexture Mapping

Mapping a texture map to a surface (polygon = Mapping a texture map to a surface (polygon = square)square)

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Texture MappingTexture Mapping

Hyperbolic interpolation improves Hyperbolic interpolation improves perspective appearance:perspective appearance:

Without hyperbolic interpolation With hyperbolic interpolationWithout hyperbolic interpolation With hyperbolic interpolation

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Texture MappingTexture Mapping

Mapping a texture to a cylinder:Mapping a texture to a cylinder:

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Texture MappingTexture Mapping

Mapping a texture to a sphere:Mapping a texture to a sphere:

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Texture Mapping DemoTexture Mapping Demo

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3-D Scene Editor3-D Scene Editor

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Polygonal ModelingPolygonal Modeling

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Polygonal Modeling - HelixPolygonal Modeling - Helix

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Tangent VectorsTangent Vectors

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Frenet FramesFrenet Frames