OTOY Forums

Got the alpha part

How do i animate particles(converted to mesh objects) in Blender 2.59?, i can't figure it out.
It's not a problem rendering still's with a lot of particles(converted to mesh's) but how to render an animation?

I've look everywhere, at least i think so.

Any ideas? (the WakYak architeture video is doing it, i think, but how?)

Blender 2.59 & Blender exporter v1.09d


Thanks in advance.

Hello Yoyoz, Thanks for making this script.
I have switched from Blender 2.49b to 2.59 this summer, and tried your Exporter. The GUI is fine, however the export time is more than twice the export time with the script for 2.49 ! As I had already huge export time, this is a bad surprise.

On my current scene (1247MB in Octane), the export time is 3 min 40s when exporting from blender 2.49b with the old script, and 7 min 52 when exporting from Blender 2.59 with your Addon !

Roubal, check if you have enabled tiangulate & HQ options in the Octane Export Settings of the exporter. Those settings should be disabled, because are not needed and just add overhead.

I haven't done any testing, but Lionels exporter shouldn't be drastically slower as is based on the .obj exporter code (unless the .obj 2.5 exporter itself is slower than in 2.4).

Thank, but I know this since my first atempts with Octane. I have used exactly the same settings as with the script for 2.49. No triangles, no HQ. I have verified several times with same results : more than twice the former time.

EDIT: I still have to compare the behaviour with the script for 2.49, but I have noticed something weird thanks to the ressource manager of Windows 7 : During the export process, at a moment, the exporter for 2.59 puts in cache around 4GB of data. It is weird, because there is still half of my RAM amount available at this moment (around 4GB of the 8GB total).

For example, when voxelizing , Octane uses the cache only when the RAM is totally used.

If the script for 2.49 works like Octane, this could explain why the exporter for 2.59 is so slow !

As you say, you are using exactly the same script for 2.49 as 2.59. Lionel's script should work exactly the same in both versions. Just one thought, are you loading exactly the same .blend into each version? It couldn't be something silly like your 2.59 .blend has accidentially got 2 copies of the model in it? i.e. twice as many verts. What does the very count say at the top of the screen?

As for the cache, this is very odd. Swap space should only be used when you run out of physical memory. I sometimes encounter this when Octane is voxelising which is why I am upgrading to 16GB.

Hope you find the problem soon.

As you say, you are using exactly the same script for 2.49 as 2.59

NO! I am using different scripts ! I use the script for 2.49 with Blender 2.49, and the addon made by yoyoz for 2.59 with Blender 2.59.

I haven't tried but Lionel's addons is not made for 2.49.

I said I used the same settings in both scripts, not the same script. And yes, I use the same blend file.

I checked with other blend files with same result : more than twice the time with the addon for blender 2.59.

One thing that I have not tried is to use the old script for 2.49 with Blender 2.59. I haven't tried because I fear that relinking an obj file made with an other exporter could lead to a corrupted ocs...

ROUBAL wrote: One thing that I have not tried is to use the old script for 2.49 with Blender 2.59.

It won't work. Scripts for Blender 2.4 and 2.5 are not interchangeable because of completely different Blender python API and python version that are written for.

Sorry about that, my bad. It has been so long since I used 2.49 that I've forgotten all about how I used to render from it.

Well, still no news from Lionel, and one more big trouble with the exporter for Blender 2.59 :

On some files, the exporter looks like exporting and displays an apparently random export time in Blender info field on top of the screen, but doesn't create the obj nor the mtl file.

It happened on big files, but has been reproduced as well on simple files. On some other, even very big files it works. I can't see any explanation...

I give you a simple file that fails to export :

http://3d-synthesis.com/BlenderTests/Ex ... tOBJ.blend