LuxCoreRender Forums

Wasted a few more hours on camera motion blur. Super frustrating, still does not work.

All of these are areas I have not touched at all yet.
I created an issue for later: https://github.com/LuxCoreRender/BlendLuxCore/issues/38

Also some question about luxcore blendluxcore and blender color management system. This is an area where I'm not sure I understand everything that's going on yet. I managed to implement Color Management support for the viewport, so viewport and final render now both have Blender Col. Management app...

In theory you have two options:

• use sky light and set ground color and ground albedo to black
• use HDRI and enable "sampleupperhemisphereonly"

However, the second option does not seem to work when I test it here (the plane is still lit from below).

Can you describe more closely what is happening and how it should look like?
Maybe with screenshots, or compare to Cycles?
I guess you mean that you plug a diffuse texture in a LuxCore node tree and it does not show up in the OpenGL viewport?

The lower half of the environment light has to be black.
Also, you should use a sun light only (no sky) if you want a pitch black unrealistic shadow like on the left.

That could work. Note that it would be good to have motion blur support for particles. So for step 2) I would like to be able to also pass a list of motion properties (step, time, transformation). We would still have to do the visibility checks and list building in Python, but that can't be avoided....

How does Blender particles work ? Do you have a single definition of the particle mesh ? You can instance single objects or a group of objects. But as an exporter you can call blender_object.dupli_list_create() and blender_object.dupli_list_clear() , and inbetween you get a blender_object.dupli_lis...

it would be very cool if the previous exported files could be used instead of writing new ones. Unforunately we can't get much faster in Python, I fear. How the particle export works in LuxBlend: Export the mesh that will be instanced Export the object definitions for all the particles (using the m...

But I have an optimization for future motion blur in mind: for i in blur_steps: set_frame(i) for obj in objects: export(obj) I tried this approach (implemented in about 34 lines of code, with debug stuff) and it's blazingly fast indeed. This is the complex test scene, all objects use motion blur (e...