Scolring - Forum

Alexandre_Brazil

Member

Registered: 8-Dec-2011

Posts: 227

Particle Emitter

Can anyone help me?
I could not enter the scene a particle emitter. I get the following message: "In the particle Template System Resources Found in Scene"

grateful

Last edited by Alexandre_Brazil (11-Apr-2012 14:57:06)

arkeon

Admin. / Scol language & OpenSpace3D developer

From: Nantes

Registered: 30-Mar-2009

Posts: 5,161

Website

Re: Particle Emitter

you can edit particles with a ogre particle editor
try this one : http://www.ogre3d.org/tikiwiki/Ogre+Par … ture=Tools

then you have to add particle and material ressource to openspace.
if the material is not added before the particle file it is possible that os3d can't found the materials.
then try to save your project and re-open the xos file.

Nodrev

Scol Language & OS3D developer

From: Nantes, France

Registered: 29-Dec-2009

Posts: 197

Re: Particle Emitter

http://www.ogre3d.org/tikiwiki/Particle+Accelerator is very good too.
The problem with those 2 tools is that sometimes you will have to modify the script manually to be sure the particle is at the good scale (those tools use a huge scale for an unknow reason).

Alexandre_Brazil

Member

Registered: 8-Dec-2011

Posts: 227

Re: Particle Emitter

Initially I want to thank for the tips, because I managed to insert the particle emitter in the scene.

I need help now to reduce its size in the scene. I tried to edit the file (. Particle), but had no success.

I send the attached file to see if I can indicate which parameter (tag) I change to reduce the size of the object in the scene.

Once again thank you for this valuable contribution.

Link Download

Nodrev

Scol Language & OS3D developer

From: Nantes, France

Registered: 29-Dec-2009

Posts: 197

Re: Particle Emitter

The most important parameter to change are "particle_width" and "particle_height": they are in world unit, so in your script, and as a world unit is one meter in OpenSpace3D, 14x26 meters! Try to divide them by 10 (1.4 and 2.6) or anything else smaller if you need, as far as you keep the ratio width/height.
You will certainly have to divide by the same amount all the "velocity_" tags too, as they are in unit per second (for example velocity = .6, etc...).
The width/height/depth of the emitter too (and maybe the affector value too).
As every Ogre's scripts, you can find useful information in the Ogre Manual

Last edited by Nodrev (12-Apr-2012 15:24:49)

arkeon

Admin. / Scol language & OpenSpace3D developer

From: Nantes

Registered: 30-Mar-2009

Posts: 5,161

Website

Re: Particle Emitter

You can also add this line in the particle script to enable the scale in openspace3d :
local_space    true

Alexandre_Brazil

Member

Registered: 8-Dec-2011

Posts: 227

Re: Particle Emitter

I changed the tags and it worked. Thank you.

hugs

Alexandre_Brazil

Member

Registered: 8-Dec-2011

Posts: 227

Re: Particle Emitter

In authoring mode the particles appear perfectly (click play), but in execution mode (by clicking the Start Player - F12) the parttículas not appear.

Last edited by Alexandre_Brazil (14-Apr-2012 03:26:20)

arkeon

Admin. / Scol language & OpenSpace3D developer

From: Nantes

Registered: 30-Mar-2009

Posts: 5,161

Website

Re: Particle Emitter

hmm strange I'll have a look on this

Alexandre_Brazil

Member

Registered: 8-Dec-2011

Posts: 227

Re: Particle Emitter

I'm waiting for your answer. I want to use this feature on a new project, after finishing what I am developing in the area of children's literacy.

I very much appreciate your valuable help.

arkeon

Admin. / Scol language & OpenSpace3D developer

From: Nantes

Registered: 30-Mar-2009

Posts: 5,161

Website

Re: Particle Emitter

I tried with the particle from neurosky demo and it seems to works fine in player mode.

Do you use a plugIT to start the particle or do you set the enable state directly on the particle in the tree ?

Alexandre_Brazil

Member

Registered: 8-Dec-2011

Posts: 227

Re: Particle Emitter

Dear Arkeon,

I apologize for the error. Redid the scene here and everything worked normally do not know what may have occurred.

grateful

iri

Admin. / Scol language & Scol apps developer

From: France

Registered: 22-Feb-2009

Posts: 2,024

Website

Re: Particle Emitter

No log file ? even your project works fine now, maybe a little and random bug could be the cause

Alexandre_Brazil

Member

Registered: 8-Dec-2011

Posts: 227

Re: Particle Emitter

Did not show any error messages (log file). I believe it was some parameter wrong PulgIT.

iri

Admin. / Scol language & Scol apps developer

From: France

Registered: 22-Feb-2009

Posts: 2,024

Website

Re: Particle Emitter

This is better for the os3d team !