Render came out pixelated/blurry

[software_ksa]

First time user.

Rendering with Vray next on Sketchup 2019
Processor - Intel(R) Core(TM) i7-9700K CPU @ 3.60GHz
Installed RAM 16.0GB
System type 64-bit operating system, x64 based processor

I am rendering the axo perspectives of a 45 storey twin tower, exterior setting.
My renders are coming out blur, with very pixelated lines when i zoom in, and taking longer than usual.



The first time I ran the render, everything was alright. It ran smoothly on chaos cloud, took 2+hr for a 3GB render at 17000px.
I left the com on for the day but when I came back and try to render a different view of the same model (no setting was changed), my renders started failing.
At first I found out that my materials file path on sketchup is suddenly missing. I tried adjusting and manuallling linking the materials. After many attempts, it worked again on cloud.
However, it took longer than the Render 1, and it came out blurry/pixelated.



Now it started failing again and this is the log detail :

22/09/2020, 11:07:19 GI engines: 'Irradiance map' and 'Light cache'
22/09/2020, 11:07:19 Progressive RPP will be set to "true"
22/09/2020, 11:07:20 Preparing renderer...
22/09/2020, 11:07:20 Using Intel Embree ray server
22/09/2020, 11:07:20 Preparing scene for rendering...
22/09/2020, 11:07:20 [RenderView] startCameraTime=0.000000, endCameraTime=2.000000

22/09/2020, 11:07:20 [RenderView] numCameraTMs=2, numFrames=2, frameSamples=1

22/09/2020, 11:07:20 Creating bitmap manager
22/09/2020, 11:07:20 Bitmap manager created.
22/09/2020, 11:07:20 Scanning scene for light plugins.
22/09/2020, 11:07:20 1 lights found.
22/09/2020, 11:07:20 Using adaptive light evaluation with 8 lights.
22/09/2020, 11:07:20 Light tree is enabled with clamp coefficient 0.1 and even split coefficient 0.5.
22/09/2020, 11:07:20 Initializing built-in VFB.
22/09/2020, 11:07:20 Resumable rendering is enabled - rendering can be stopped and resumed
22/09/2020, 11:07:20 OpenEXR compression type is 3
22/09/2020, 11:07:20 OpenEXR data window: render region
22/09/2020, 11:07:20 VFB writing to raw image file
22/09/2020, 11:07:25 [RenderView] startCameraTime=0.000000, endCameraTime=2.000000

22/09/2020, 11:07:25 [RenderView] numCameraTMs=2, numFrames=2, frameSamples=1

22/09/2020, 11:07:25 Starting DR 0
22/09/2020, 11:07:25 Max ray intensity is enabled: rendered result may have incorrect brightness.
22/09/2020, 11:07:25 Consistent lighting elements are not supported with irradiance map and will be disabled.
22/09/2020, 11:07:25 Preparing camera sampler.
22/09/2020, 11:07:25 Preparing scene for frame...
22/09/2020, 11:07:26 Compiling geometry...
22/09/2020, 11:07:28 Preparing ray server.
22/09/2020, 11:07:28 Using Embree ray tracing.
22/09/2020, 11:07:29 Building Embree static trees took 327 milliseconds, memory used 510.96 MB
22/09/2020, 11:07:29 Building dynamic geometry trees took 208 ms.
22/09/2020, 11:07:29 Embree dynamic geometry tree contains 714556 primitives.
22/09/2020, 11:07:29 Embree dynamic geometry tree built in 316.70 ms.
22/09/2020, 11:07:29 Embree dynamic geometry tree takes 80.40 MB.
22/09/2020, 11:07:29 Full rayserver build. Took 962.113 ms.
22/09/2020, 11:07:29 Scene bounding box is [-747.569,-6257.18,-383.858]-[5129.36,584.134,7137.8]
22/09/2020, 11:07:29 Preparing direct light manager.
22/09/2020, 11:07:29 10 render channels in sequence data
22/09/2020, 11:07:29 Preparing global light manager.
22/09/2020, 11:07:29 Using 0.69 MB for adaptive lights buffer
22/09/2020, 11:07:29 Irradiance sample size is 84 bytes

22/09/2020, 11:07:29 Cannot use fast GI because primary engine is not brute force
22/09/2020, 11:07:29 Cannot use fast GI because secondary engine is not brute force or none
22/09/2020, 11:07:29 Photon size is 56 bytes.

22/09/2020, 11:07:29 Light cache sample size is 136 bytes.
22/09/2020, 11:07:29 Light cache built state is 0
22/09/2020, 11:07:29 Building light cache.
22/09/2020, 11:07:31 Tracing 385641 image samples for light cache in 64 passes.

renderer exited with code 139

Previously my global illumination setting was Primary rays (Brute force), Secondary Rays (Light cache).
I presumed maybe the light cache is creating the problem so I changed the setting Primary rays (Brute force/Irradiance map), Secondary ray (Brute force).
It managed to run again after this move, but gave me render 2, very low res.



Rendering on my computer instead of the cloud works till about 5000px. Took 4hours for the render 1 view at resolution 5000px.
Could not go any higher than that resolution, if not the sketchup and vray will automatically close.

I'm currently unsure which is causing the problems, is it my settings I need to tweak? materials path? my computer system?
I need to export 4 exterior perspectives at 8000px size (width), 400dpi.
Would appreciate all the help/advice I can get.

[Neilg]

That's not pixellated. It looks like you've got depth of field turned on in the camera and it's out of focus.

[software_ksa]

Hi neilg, thank you for the prompt reply!
Ah okay let me toggle it off and try.

Any idea why my renders were failing?
Actually the successful ones are 1 one of 10 over failed attempts, so I think I have some settings wrong somewhere too.

[nikoleta.garkova]

Hi software_ksa,

Would it be possible to forward this project to support@chaosgroup.com for further investigation? You can use the Pack Project tool from Extensions > V-Ray > Pack Project. Moreover, it would be great if you share the Cloud Job ID so we can have a look there as well. Please also mention this thread in the email, thanks.

[fixeighted]

In those settings DOF is on yes, but also the noise is set at .0001 and the denoiser is on, plus BF/BF and a very large image size...maybe that's why it takes a long time/crashes, unless Sketchup's Vray is very different to Max's.