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### Course: Pixar in a Box>Unit 11

Lesson 1: Modeling grass with parabolas

# Introduction to parabolic arcs

What do parabolic arcs have to do with blades of grass?

## Want to join the conversation?

• What are parabolic arcs anyways?
• Do you use coding to create images in movies?
• yeah, but only TD's and rendering engineers do that.
(1 vote)
• Alright this is probably a stupid question for any of you who are a pro at this but .......How much math goes into each blade of grass, leaf, bark, rock, moss, mushroom, dirt, smoke, fire, and every ting like that? If anyone is willing to tell me then grate!!
• It is not a stupid question! It usually takes a lot of math if you really want it to look good and realistic.
• How much math goes into one blade of grass?
• The term "computational power" describes how much work a computer has to work to get to the wanted result. The more math involved, the harder it is.

The question 'how much math goes into one blade of grass" is a bit vague. We do have ways to calculate the overall efficiency of an computer algorithm, which we can calculative by counting the numbers of operations done in the program.

For more info on this, I'd suggest looking into algorithms on KA in their Computer Science (CS) section.

Hope this helps! :-)
• why is it called a parabola
• What is the beep on: in the video??
• in and he says something very ture
• Did anyone else see the beep* at the end?
Do anyone know what that is and what that mean?
• i heard the beep and it's probably just an editing mistake.