'Canonical view volume' diaporamas de présentation

Modeling and Viewing

Modeling and Viewing . Modeling Use modeling (local) coordinates and geometric transformations to build hierarchically more complex objects and scenes. The final scene is in world frame Viewing Model the camera : position , orientation, camera (view) reference frame, projection

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Viewing III

725 views • 52 slides

Ray Tracing

736 views • 50 slides

Computer Graphics

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Last Time

Last Time. Canonical view pipeline. Local Coordinate Space. World Coordinate Space. View Space. 3D Screen Space. Display Space. Projection. Today. General Orthographic Perspective viewing Simple case Completely general case. Simple Orthographic Projection.

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Projection

Projection. Projection - the transformation of points from a coordinate system in n dimensions to a coordinate system in m dimensions where m<n.

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Computer Graphics

Lecture 4 View Projection Taku Komura. Computer Graphics. Measuring the BRDF. Measured using a device called gonioreflectometer Casting light from various directions to the object, and capturing the light reflected back. Problems with Measured BRDF. Includes a lot of error

308 views • 30 slides

OpenGL (II)

OpenGL (II). How to Draw a 3-D object on Screen?. Drawing a Scene. Apply modeling and viewing transformations Apply projection transformation Clip if it lies outside the viewing volume Apply viewport transformation to display on the screen. Transformations.

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Chapter 11

Chapter 11. 3D Clipping. 3D Viewing Pipeline. Primitives. Object space. Modeling Transformation. World space. Viewing Transformation. Camera space. Hidden Surface Removal. Lighting & Shading. 3D-Clipping. Projection. Normalized view space. Scan conversion, Hiding.

296 views • 29 slides

Last Time

Last Time. 2D Coordinate systems and transformations. Today. 3D Transformations Orthographic Viewing. 3D Transformations. Homogeneous coordinates: (x,y,z)=(wx,wy,wz,w) Transformations are now represented as 4x4 matrices

380 views • 27 slides