• Project: Tornado 
• Inspiration
(photo of Tornado in Wikipedia)
• Process
1. The initial velocity of the dusts 2. add the force of float and change the color3. Change the scale of the dusts. When the dusts float higher, the distance from them to the center of the tornado will also be enlarged. 4. Limit the number of the objects so that there will not be too large objects. 5. Add some frame rate interaction, which is cool, like slow-motion video6. Add two wind forces from left and right to make it spin 7. Try enlarging the range of the spinning dusts. 8. Add mouse interaction to change the range of the tornado 9. Find out the problem of the redundant translate function in my code and adjust the mouse interaction to be like a repelling wind force 10. Final version: using mouse interaction to make amazing spinning motion. • Reflection/ Lesson-learned
In this assignment, I tried a lot of way to add forces, which are also acceleration. It gave me a surprising effect that this 2D animation look like 3D so much. This practice helped me get more methods of how to make the movement smooth and full of change in a natural way. However, I still need to learn more about how to make the movement more natural.
• Sketch Link