3d transformation - PowerPoint PPT Presentation

3D Coordinate Systems

3D Coordinate Systems. 3D computer graphics involves the additional dimension of depth, allowing more realistic representations of 3D objects in the real world There are two possible ways of “attaching” the Z-axis, which gives rise to a left-handed or a right-handed system. 3D Transformation.

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3D Geometric Transformation

3D Geometric Transformation. N. Point in 3D space Position (x, y, z) Color (r, g, b) Normal (Nx, Ny, Nz) Homogenous Coordinates Position (x,y,z,w) Usually (x,y,z,1) Transformations Translation Scaling Rotation Projection. (x,y,z). 3D Translation. T(dx,dy,dz)=. 1 0 0 dx

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