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3D Paint Brush

3D Paint Brush. Reza Ghaffaripour Ziaul Hoque Sikder. Opening: . 2D Programming 3D Programming. 3D Programming. 3D to 2D Projection Transformations Rotation View Point,Light. 3D to 2D Projection. (x,y,z)  (x’,y’) How to ?. x’ = x / z y’ = y / z. Transformation.

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3D Paint Brush

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  1. 3D Paint Brush Reza Ghaffaripour Ziaul Hoque Sikder

  2. Opening: • 2D Programming • 3D Programming

  3. 3D Programming • 3D to 2D Projection • Transformations • Rotation • View Point,Light

  4. 3D to 2D Projection • (x,y,z)  (x’,y’) How to ? x’ = x / z y’ = y / z

  5. Transformation Transformation of (x, y, z) to (x', y', z') (Tx,Ty,Tz) is transformation vector

  6. Rotation Rotation of (x, y, z) around the x-axis, gives (x', y', z')

  7. View Point,Light

  8. Our Problems • Long coding • Implementation of Rotation,Transformation,… • Matrix Calculations • Adding Texture • Speed • Graphics Card Dependency

  9. OpenGL Graphics Engine • Is a software interface • Is to render 2D and 3D objects • Things are vertices (which define geometric objects) or pixels (which define images)

  10. Rotation In OpenGL The function glRotate ( angle , x , y , z ) multiplies the current matrix by a rotation matrix about the vector from the origin through the point (x,y,z)

  11. File Model

  12. Object Model

  13. Source code Model

  14. Use Case

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