Particle System from Blender in Octane?

[Welti]

If i create a particle system in blender it is not exported into the octane render scene, why? It does not matter if it is a Emitter System or a Hair System.

[matej]

The exporter doesn't export particles unless they are made real geometry or "particle instance" modifier is used.

You can export Hair or Emitter PS as instances (.cvs file) with this tool here

[Welti]

Thanks for your reply,

i downloaded and installed the script but if i click "Export instance transforms" and click on "render still image" it is not shown in the render. If i apply the ParticleInstance modifier i get the error "Modifier is disabled, skipping apply". If i convert the particle into real objects, blender crashes.

Edit: I don't understand the node setup for this script...Will there be a particle export system in the blender exporter for OctaneRender sometimes?

[Saramary]

You don't need apply modifer. If you do this, instances loose all their meaning. Try export again, step by step, as Matej wrote in first post.

[Welti]

I don't understand the node setup for this script...Will there be a particle export system in the blender exporter for OctaneRender sometimes?

[ROUBAL]

Hi, your particle has to be an object (a mesh). Locate a template of this object centered at the origin of Blender 3D viewport.

Hide everything else of all layers, and export the particle object alone.

Create your particle emitter and chose object mode (not group) and enable the template object as particle.

Select the emitter and click on the button of the instance exporter. This special exporter generates a scatter file (.csv).

In Octane, add a mesh node, load the obj file of the object.

Add a scatter node.

Load the csv file into the scatter node.

Add a geometry node.

Connect the mesh/obj node to the scatter node, the scatter node to the geometry node, and click on the geometry node or select render in the menu appearing when you right click on the geometry node.

You should get it !

[matej]

On that link, below the script download, is a hair PS example package with .blend, .ocs and everything - check it out to see how is the instances setup in the .ocs project done.