Recent changes to Particle_systems

Particle_systems modified by Javier Taibo

Javier Taibo — Wed, 21 May 2014 09:47:32 -0000

--- v6
+++ v7
@@ -45,6 +45,7 @@

 's 
   * Improving particle render (spheres, instance geometry, sprite image sequences, ...) 
+  * Random lifespan 
   * and much more 

-Some of this features are relatively quick and easy to implement, but they are left in stand by until they are needed. Current efforts in Maya2OSG development are oriented towards lighting, shading and shadowing. 
+Some of this features are relatively quick and easy to implement, some others are more delicate because they need to modify OSG code. Whatever the case, they are left in stand by for a while, unless they are needed for any project. Current efforts in Maya2OSG development are oriented towards lighting, shading and shadowing.

Particle_systems modified by Javier Taibo

Javier Taibo — Wed, 21 May 2014 09:47:32 -0000

--- v5
+++ v6
@@ -1,3 +1,5 @@
+## Supported features
+
 Maya Dynamics particle systems are exported to [osgParticle](http://www.openscenegraph.org/projects/osg/wiki/Support/Tutorials/ParticleEffects) node kit.

 The following Maya emitters are exported to OSG: 
@@ -31,3 +33,18 @@
   * Streaks 
   * Sprites 
   * ...more to come... 
+
+## About particle support
+
+Maya2OSG particle systems support is currently in a very preliminary stage. There is a lot more work to do: 
+
+  * Exporting nParticles 
+  * Exporting Maya Fields connected to particles to 
+        
+        osgParticle::Operator
+
+'s 
+  * Improving particle render (spheres, instance geometry, sprite image sequences, ...) 
+  * and much more 
+
+Some of this features are relatively quick and easy to implement, but they are left in stand by until they are needed. Current efforts in Maya2OSG development are oriented towards lighting, shading and shadowing.

Particle_systems modified by Javier Taibo

Javier Taibo — Wed, 21 May 2014 09:47:32 -0000

--- v4
+++ v5
@@ -1,4 +1,6 @@
-The following emitters are supported: 
+Maya Dynamics particle systems are exported to [osgParticle](http://www.openscenegraph.org/projects/osg/wiki/Support/Tutorials/ParticleEffects) node kit. 
+
+The following Maya emitters are exported to OSG:

   * Omnidirectional 
   * Directional 
@@ -12,14 +14,14 @@

 Maya2OSG exports old fashioned particle systems from Maya Dynamics engine. The new Nucleus system nParticles will be supported soon. 

-Connections between emitters and particles are kept in OSG scene. A particle system can be emitted from several emitters, but one emitter cannot emit more than a particle type. 
+Connections between emitters and particles are kept in OSG scene. A particle system can be emitted from several emitters, but one emitter cannot emit more than a particle type, as osgParticle does not support it. 

-The following particle attributes are supported: 
+The following particle attributes are exported: 

   * Lifespan mode 
     * Live forever 
     * Constant 
-    * Lifespan random is exported as constant 
+    * WARNING: Lifespan random is exported as constant 
   * Lifespan (seconds) 
   * Radius (world units) 

@@ -28,3 +30,4 @@
   * Points 
   * Streaks 
   * Sprites 
+  * ...more to come...

Particle_systems modified by Javier Taibo

Javier Taibo — Wed, 21 May 2014 09:47:32 -0000

--- v3
+++ v4
@@ -23,4 +23,8 @@
   * Lifespan (seconds) 
   * Radius (world units)

-Particle render types are currently ignored. Coming soon... stay tuned! 
+Supported particle render types: 
+
+  * Points 
+  * Streaks 
+  * Sprites

Particle_systems modified by Javier Taibo

Javier Taibo — Wed, 21 May 2014 09:47:32 -0000

Particle_systems modified by Javier Taibo

Javier Taibo — Wed, 21 May 2014 09:47:32 -0000

--- v1
+++ v2
@@ -1,8 +1,26 @@
-Supported emitters: 
+The following emitters are supported:

   * Omnidirectional 
   * Directional 

-## Known bugs
+The following emitter attributes are supported: 

-Directional emitters exported to OSG are not affected by Maya transforms 
+  * Emission rate (particles/second) 
+  * Speed (world units/second) 
+    * Speed random is also supported 
+  * Spread (only directional emitter) 
+
+Maya2OSG exports old fashioned particle systems from Maya Dynamics engine. The new Nucleus system nParticles will be supported soon. 
+
+Connections between emitters and particles are kept in OSG scene. A particle system can be emitted from several emitters, but one emitter cannot emit more than a particle type. 
+
+The following particle attributes are supported: 
+
+  * Lifespan mode 
+    * Live forever 
+    * Constant 
+    * Lifespan random is exported as constant 
+  * Lifespan (seconds) 
+  * Radius (world units) 
+
+Particle render types are currently ignored. Coming soon... stay tuned!

Particle_systems modified by Javier Taibo

Javier Taibo — Wed, 21 May 2014 09:47:32 -0000

Supported emitters:

Omnidirectional
Directional

Known bugs

Directional emitters exported to OSG are not affected by Maya transforms