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[BUG] Simulens on even if unchecked in plugin/Studio
Posted: Fri Sep 25, 2009 4:08 pm
by zoetropeuk
EDIT:
I worked it out

Even though the Simulens checkboxes are ALL SWITCHED OFF, it's still rendering with the unchecked default values. If I check the boxes, reduce the values back to 0, the render goes back to normal.
For some unknown reason it's now impossible for me to replicate the image quality using V2. I've been using MWR since the early alpha versions and have never had problems like this.
Basically the contrast of the render is very, very low using the same settings as per version 1.7. If I adjust the various sliders to increase the contrast (monitor gamma etc) then the contrast is far too high and the image very dark in the shadows. It just doesn't seem possible to match what I'm used to. Am I missing something ?
I'll post an image later when I have two directly comparable renders.
I'm using V2.0 on OS 10.6.1 with C4D 11.0
Matt
Re: Extremely poor image quality (low contrast)
Posted: Fri Sep 25, 2009 4:18 pm
by JorisMX
try multiplying the emitter values in the materials untill you come to a proper result.
Re: Extremely poor image quality (low contrast)
Posted: Fri Sep 25, 2009 4:37 pm
by zoetropeuk
I don't have any emitters in the materials. I'm using a simple HDRi for lighting that's worked perfectly for the last 2-3 years.
Here's what the renders used to look like:
Here's what a test render looks like. I rebuilt the scene from scratch but still no luck:
Matt
Re: Extremely poor image quality (low contrast)
Posted: Fri Sep 25, 2009 5:08 pm
by Mihai
But it looks like you're rendering with physical sky instead of your HDR. See if your IBL channels are not disabled....
Re: Extremely poor image quality (low contrast)
Posted: Fri Sep 25, 2009 5:16 pm
by Julian
Hi Matt, have you changed your colour space to ProPhoto for example? - the wider gamuts appear to reduce the punch considerably in the renderer - you will have to save the output in a format that holds ICC profiles such as tif (tga does not) if you want to use your render in a colour managed workflow.
Try sRGB or Adobe RGB for better saturation in the renderer.
Julian
Re: Extremely poor image quality (low contrast)
Posted: Fri Sep 25, 2009 5:19 pm
by Renato Lemus
The image looks like if scattering in simulens is turned on..
Re: Extremely poor image quality (low contrast)
Posted: Fri Sep 25, 2009 5:31 pm
by zoetropeuk
Mihai wrote:But it looks like you're rendering with physical sky instead of your HDR. See if your IBL channels are not disabled....
I've tried both HDR and physical sky and both results are just as bad.
Matt
Re: Extremely poor image quality (low contrast)
Posted: Fri Sep 25, 2009 5:32 pm
by zoetropeuk
Julian wrote:Hi Matt, have you changed your colour space to ProPhoto for example? - the wider gamuts appear to reduce the punch considerably in the renderer - you will have to save the output in a format that holds ICC profiles such as tif (tga does not) if you want to use your render in a colour managed workflow.
Try sRGB or Adobe RGB for better saturation in the renderer.
Julian
That's what I initially thought as well so I've tried sRGG, ProPhoto, Adobe98 etc and the results do not improve.
Matt
Re: Extremely poor image quality (low contrast)
Posted: Fri Sep 25, 2009 5:33 pm
by tom
zoetropeuk wrote:I rebuilt the scene from scratch but still no luck.
Matt, I have two questions:
1) Why did you build the scene from scratch?
2) Do you have that 1.7 scene you're happy about its result?
Re: Extremely poor image quality (low contrast)
Posted: Fri Sep 25, 2009 5:33 pm
by zoetropeuk
Renato Lemus wrote:The image looks like if scattering in simulens is turned on..
Those settings are definitely turned off. Believe me, I've checked every single setting and everything seems normal. If however I render the standard materials scene it seems OK. But then that's not being exported via the C4D plug-in.
One other issue is "Low Priority" is ALWAYS ON.
Matt
Re: Extremely poor image quality (low contrast)
Posted: Fri Sep 25, 2009 5:35 pm
by zoetropeuk
tom wrote:zoetropeuk wrote:I rebuilt the scene from scratch but still no luck.
Matt, I have two questions:
1) Why did you build the scene from scratch?
2) Do you have that 1.7 scene you're happy about its result?
1. I thought for some reason maybe some of the old non-functioning mxm tags were causing the problem.
2. No, they all render with this very weird low contrast effect.
Matt
Re: Extremely poor image quality (low contrast)
Posted: Fri Sep 25, 2009 5:37 pm
by Mihai
The V2 image you posted looks exactly like Physical Sky render. It can't be rendered with the HDR map from the other images you rendered. Send me the 1.7 scene privately if you want. Did you open it in Studio and check the Environment settings?
Re: Extremely poor image quality (low contrast)
Posted: Fri Sep 25, 2009 5:38 pm
by tom
zoetropeuk wrote:2. No, they all render with this very weird low contrast effect.
Do you mean you can't even render this scene in v1.7 decently anymore?
Re: Extremely poor image quality (low contrast)
Posted: Fri Sep 25, 2009 5:40 pm
by zoetropeuk
Mihai wrote:The V2 image you posted looks exactly like Physical Sky render. It can't be rendered with the HDR map from the other images you rendered. Send me the 1.7 scene privately if you want. Did you open it in Studio and check the Environment settings?
Yes, this scene is using the physical sky as I thought the HDR might be a problem but it's not. Whether I use HDR, PS or SD the results are still the same.
Matt
Re: Extremely poor image quality (low contrast)
Posted: Fri Sep 25, 2009 5:44 pm
by Mihai
Post the HDR render. Just open the 1.7 scene in V2 Studio and hit render.