Removing custom material from a particle emitter

Unity Engine
1

I’m sorry for re-posting this, but i really need an answer in order to understand and solve this issue.

(a “brief” description of what i’m trying to accomplish)

I’m doing a tutorial about adding material to an particle emitter

In the tutorial i’m making a smoke material for an volcano:

Below is the tutorial (it only lasts 3:32 min)

http://learnmesilly.com/index.php?currentPage=unity_lesson1&currentPart=unity1_7

My problem is that every time i try to get rid of the material i have created the smoke on my volcano turn into white squares.

What i’m trying to get rid of can be seen in the lowest part of the image labeled: (GreenPlasmaLightningBalBright) - this is something which is added as an extra or custom if you will (as i understand it !) and this is the part i can’t remove ! - if try to reset, then all i’m getting is the white squares.

http://unity3d.com/support/documentation/Components/class-ParticleRenderer.html

Also, i think i know why i’m getting the white squares - it’s because there isn’t assigned any materials to the particles, however, i can’t understand where the original particles along with its material went once the custom material was added ?

Shouldn’t the particle emitter revert back to showing the particles it initially had once the custom material is removed ?

Doesn’t the added material become a child of the initial particle emitter ?

Like this:

V Initial particle emitter
-----------------|
-----------------|Added material

Well, i hope my problem i much more clear to everyone now - would some one please be kind enough to help me out.

Thank you in advance

2

No, the default particle material is embedded in Unity and isn’t in your project folder, but all it is is a blurred white circle texture using the Particle/Additive shader.

But once you replace that default particle material it’s gone until you create a new particle system.

3

Okay, thanks

Suggestion: why not revert it back to its default material if the new material is deleted - ie. it would remove the squares (and might even prevent a few stupid questions in the forum !)

Also, i’ve noticed that even though i set alpha value to zero on one of the colors i can still partially see it - shouldn’t it be totally invisible ?