Reality 4- very long render

calaopie

Finally, movements solved with the launch of reality came another problem.

I created a simple scene - a figure, clothing, hair, lighting, camere and start rendering.
After 3 minutes, the picture is almost ready, but after 40 minutes it is still not finished. Is it normal that the program renders so long? Is it possible to some optimization?

BeeMKay

Depending on the size, that is a normal rendering time to achieve a good result. Some people render for hours; the longest I rendered was 16 hours.
But you have to keep in mind that Reality is a progressive render engine, it will render until you tell it to stop rendering.
So, when you are happy with the quality, just stop the render and save the image. :-)

Richard Haseltine

It will keep rendering until you tell it to stop. Though 40 minutes is not really long.

calaopie

Richard Haseltine said:

It will keep rendering until you tell it to stop. Though 40 minutes is not really long.

So render practically never ends ?

mjc1016

calaopie said:

Richard Haseltine said:

It will keep rendering until you tell it to stop. Though 40 minutes is not really long.

So render practically never ends ?

No, Luxrender (the renderer Reality uses) will render indefinitely...continually refining. For all practical purposes, though, it can be considered 'done' at between 1000 and 5000 samples/pixel....even though many images are passable long before that.

calaopie

So I can pause the project, save and continue to render in the future?

Richard Haseltine

As long as you save the LuxRender file and not just the current state as an image, yes.

Isazforms

For continue render use Save Flm file in luxrender options. When you want to continue use resume flm.

Steven-V

As others have said, Luxrender is like the Energizer Bunny... it keeps going... and going... and going... until you stop it.

And also as was said above, 1,000+ samples/pixel is usually sufficient. Depending on the scene and what you have in it. Although some Lux guys like to say 10,000 is necessary. (IMO it is overkill).

Also, if you can use the GPU version (depends on your vid card), you might get faster render times. I went from 250 to 25 minutes by going to the GPU (to reach 1,000 s/pixel in my test scene).

calaopie

steven.viscido said:

As others have said, Luxrender is like the Energizer Bunny... it keeps going... and going... and going... until you stop it.

And also as was said above, 1,000+ samples/pixel is usually sufficient. Depending on the scene and what you have in it. Although some Lux guys like to say 10,000 is necessary. (IMO it is overkill).

Also, if you can use the GPU version (depends on your vid card), you might get faster render times. I went from 250 to 25 minutes by going to the GPU (to reach 1,000 s/pixel in my test scene).

Picture 1. After 9 hours and 4k samples
Picture 2. When turn on hybrid gpu and 64 open CL, same scen looks that.