koobas.hobune.stream
What's the real unit of the particle system's start size
Hi, I am using unity3d-4.3.4f1, and the Shuriken Particle System.
When I set the Max Particle Size in the Renderer submodule to 1, and set the start size to 1 too, the result is: 
When I set the start size to 100, the result is : 
The result is confusing me, Why the result is like this? The tool tip for Max Particle Size is said that the valid value is 0 to 1, and relative to the viewport, but you can see the result is not like as it said.
Am I in the wrong way?
Would you tell me the reason? Thank you for your time!
If $$anonymous$$ax Particle Size is set to 1, it just means your particle can be as big as the whole screen. As long as you increase the start size the particle will become bigger, until it reaches the size of the screen.
Thank you for your reply, $$anonymous$$aerig. Well, I meant that I don't know the start size's meaning. Because when I set the $$anonymous$$ax Particle Size to 1, and the start size is set to 1 too, but the result is not as bigger as the viewport size. And even if the start size set to 100, the result is not as bigger as the viewport size.
Actually, i think it is as big as the viewport size. If you increased the size a bit further, it would go beyond the top and bottom edges of the screen.
Also, if you want to make it even bigger, note that $$anonymous$$ax Particle Size can be greater than 1. It doesn't look like it changes anything beyond 1.5, though.
Thank you, $$anonymous$$aerig.
I found that the max particle size has no effect to the final result if Renderer use mesh. And the start size's unit is equal the 3d world unit if Renderer use mesh. And if Renderer use billboard, the max particle size's behavior is like as it says.
this seems to be 2D and the second image looks closer this only is a result of the size of 100 units by 100 units in the first image it is only 1 unit by 1 unit therefore it is 1 square meter where as the other is 10 000 meters square
Thank you for your reply, gannaz. Well, I meant that I don't know the start size's meaning. Because when I set the $$anonymous$$ax Particle Size to 1, and the start size is set to 1 too, but the result is not as bigger as the viewport size. And even if the start size set to 100, the result is not as bigger as the viewport size.
