Interior Scene, help please!

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Re: Interior Scene, help please!

Postby Diepgroen » Sat Feb 18, 2017 7:23 pm

Diepgroen Sat Feb 18, 2017 7:23 pm
jsuarezbattle wrote:Thank you for the input. I was indeed trying to have my walls be emissive, but then the render was looking SUPER bright, even with the emission set to 0.5.
My walls are white, so I can cheat by making them emissive, which I am going to ask, this would be achieved by adding a texture emission to the emission material correct? which is what I am doing. How is the person in the post you suggested doing it if the walls are so dark? I tried this on the walls and ceiling to get rid of those dark areas, I'll try it again soon and post some pictures. Reducing render times by 70% would be great!


I must say the 'Octane Render for Cinema4D v2.x - Render Settings and Optimization' video gave me a clear idea how to think about - and apply optimizations. Which in turn is a better route to take and it applies to all plug-ins. Towards the end there are clear examples.
The proposed cheat at the other hand uses the Direct Lightning kernel. I have no idea if Ryan Roye tested this with the Path Tracing Kernel or PMC Kernel.

How the material was setup: If I'm correct, plugged into a diffuse material is the following setup
texture image node > emissive node (cast illumination on, surface brightness off, sample rate 1) > diffuse material
Experiment with the power value I would say. I can not say much about open windows or windows with glass geometry in front of them as i haven't tested any of this yet.

Glossy emitting surfaces?
Material Mixer Node combines the Diffuse Emitter material just mentioned above and a glossy material.

I tested his scene and my results are 10sec rendertime with 512 samples - two GFORCE GTX 1070 - screensize 640 x480 no noise.
I bought his training course for Octane and Lightwave, the test scene where included.

My knowledge end there about the cheat.
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Re: Interior Scene, help please!

Postby Kretschi » Mon Feb 20, 2017 10:47 am

Kretschi Mon Feb 20, 2017 10:47 am
Hallo,

Did you try the old model in the daylight tag with Directlighting and GI_AMBIENT_OCCLUSION? Without the emissive walls..
Not super realistic but very fast...


Andreas
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Re: Interior Scene, help please!

Postby jsuarezbattle » Mon Feb 20, 2017 2:17 pm

jsuarezbattle Mon Feb 20, 2017 2:17 pm
Kretschi wrote:Hallo,

Did you try the old model in the daylight tag with Directlighting and GI_AMBIENT_OCCLUSION? Without the emissive walls..
Not super realistic but very fast...


Andreas


Hey Andreas, Yes I did. My ceiling don't get any light bounces, therefore they look very bad. I just got to the office and will try some things now
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Re: Interior Scene, help please!

Postby jsuarezbattle » Mon Feb 20, 2017 5:06 pm

jsuarezbattle Mon Feb 20, 2017 5:06 pm
Feels like every time I make some progress something else comes up. It can't be this difficult to set up an interior scene with Octane, makes no sense.

I managed to reduce render times, and got DL AO working, as well as diffuse with low render times, but now, depending on where I place my camera, I get these weird shades on my walls. This is going to be an animation so I can't have this happening on my scene. This wasn't happening before. I have restarted C4D and my computer and still.

Any thoughts please?

Image here > https://dl.dropboxusercontent.com/u/189 ... 120522.png


PS: why am I not able to upload images to this thread? or why am I not able to post anything to the C4D +octane forum?
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