[devlog] jme3 as blender renderer

david_bernard_31 · February 23, 2015, 9:59am

I found the issues, but not yet fully corrected :

int/float precision issue in bone weight – FIXED
missing the last frame/state in animation (main cause of the Jaime with big hand) – FIXED
constraints (IK, copy,…) and other modifiers not fully applied on bones – will try an other (heavier) approach like suggested by @nehon, and @Momoko_Fan

Thanks for your interest

david_bernard_31 · February 23, 2015, 2:28pm

bone animations fixed:

the blender addon sample animations of bone on “export” or when you switch viewport to “rendered”. The sampling is done by replaying every action’strips from every nla_track from every object.

I need help to test and find bugs, contact me if you’re interested.

nehon · February 23, 2015, 3:09pm

Cool nice work!!
What was the issue?

I have plenty of models to test against

david_bernard_31 · February 23, 2015, 3:28pm

Thanks, the main issues are listed in previous post, but don’t worry I’ve a lot of other issue.

I currently try TestJaime with xbuf vs .j3o and new issue pop (mainly a Y translation variation).

I’ll prepare (package the addon, upload jars, write/update docs and share TestJaime as a standalone), so you should be able to give a try with your model. The workflow is as friendly as I whish (blender freeze when create data). Anyway, I need feedback to improve.

Empire_Phoenix · February 23, 2015, 7:24pm

Really great work

david_bernard_31 · February 23, 2015, 8:44pm

To give it a try :

download the blender addon from : davidB/blender_external_renderer
read the README, it’s include basic instruction

On jME side, you have 2 options :

use the ModelViewer from jme3_ext_assettools, I’m uploading standalone version in releases section.

run it
render viewport
use spatial explorer to deal with scene (no auto-refresh)

use AppState4RemoteCommand with your application (you can also add Spatial Explorer)

add dependencies

repositories {
    mavenLocal()
    jcenter()
    maven { url "http://updates.jmonkeyengine.org/maven/"}
    maven { url "http://dl.bintray.com/jmonkeyengine/contrib" }
}
dependencies {
    compile 'net.alchim31.jme3:jme3_ext_remote_editor:0.2+'
...
}

attach the AppState4RemoteCommand to your Application

github.com

davidB/jme3_ext_remote_editor/blob/xtend/src/test/java/jme3_ext_assettools/ModelViewer.xtend#L228


			}
			null
		]
	}
	//Setup SpatialExplorer
	def setupSpatialExplorer() {
		Helper.setupSpatialExplorerWithAll(app)
	}
	def setupRemoteCommand(int port) {
		app.enqueue[
			val xbuf = new Xbuf(app.getAssetManager())
			app.getStateManager().attach(new AppState4RemoteCommand(port, xbuf))
			null
		]
	}
	def setupModels(List<String> models) {
		app.enqueue[
			for(String p : models) {

I you only want to use the loader for xbuf, Currently you have to net.alchim31.jme3:jme3_ext_remote_editor:0.2+ and exclude dependencies to io.netty:netty-handler

Contact me about any issues, comments,… I’ll try to reply ASAP.

Thanks and Good Luck

david_bernard_31 · February 23, 2015, 9:38pm

I share on github a small project where I load Jaime.j3o (from test-data) and the Jaime.xbuf (created today) from the .blend in Jaime.zip

project (includes all assets,… ~ 10 MB) : xbuf_jaime

a short video to compare and see issues :

left: xbuf / right: j3o

david_bernard_31 · February 27, 2015, 6:41pm

you can launch animation on jme side, by selecting animation (strip) on NLA Editor

I upload the latest version :

and bintray for jar

nehon · July 17, 2015, 7:52pm

So I’m finally giving it a try.
I have this issue on widows with blender 2.74 (same error on 2.72)

on 2.68 i have

Aand that kind of prevented me of testing further

What blender version do you use? Or maybe I need a more recent python installed (I have 2.6)?

david_bernard_31 · July 17, 2015, 9:50pm

Do you download from Releases · xbuf/blender_io_xbuf · GitHub ?
blender embed python 3.

I’ll write a quick guide this WE (bullet point)

Sorry for the issue

nehon · July 17, 2015, 10:02pm

np…gonna try this

nehon · July 17, 2015, 10:06pm

got this error now

gona wait for your guide

RiccardoBlb · July 18, 2015, 12:29pm

I have the same error

david_bernard_31 · July 19, 2015, 8:14am

I didn’t write the guide yet.

But I fixed the issue in version 0.5.1 (download the zip on releases page ) and master (download zip button on GitHub - xbuf/blender_io_xbuf: Delegate rendering to an external render engine (eg provided by game engine)).