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FarbigeWelt
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Mushroom Trees

Post by FarbigeWelt » Sat Jun 08, 2019 9:38 pm

Sun's relative size is 7.5. Tone map Reinhard's settings lead to a quite dark image which is exposure 1.1 and gamma 1.1 corrected. There are l12.5 million lights below the mushrooms head. There are two types of mushrooms. Both types are multiplied by 2000 with its own particle system. Mushrooms' materials are a mix of glass respective rough glass and matte. The pink floor is also a mix of glass and matte. There is a very bright area light below the floor. The strict geometric strictness of the mushrooms avoids a natural look. Maybe, I change that in a future version of the image.
At the moment I like the result as is and I am very happy about LuxCoreRenders capabilities to render a scene of 2.6 Mpixels openCL with 71.5 Mfaces and 12.5 Mlights on a single four years old GPU within 1 hour and 22 minutes. For this scene this means processing of 2.4 klights/s and 13.5 kfaces/s.
Mushrooms openCL PGIC 1503 samples 1 GPU 1h22m52s init 1m4s expt 1m2s VRAM 4805, 12.5 mio lights.jpg
Mushrooms openCL PGIC 1503 samples 1 GPU 1h22m52s init 1m4s expt 1m2s VRAM 4805, 12.5 mio lights
160.8 | 42.8 (10.7) Gfp / Windows 10 Pro, intel i7 4770K@3.5, 32 GB | AMD R9 290x+R9 390x, 4 GB
17.3 | 19.0 ( 4.7) Gfp / macOS X 13.6, iMac 27'', 2010, intel i7 870@2.93, 24 GB | ATI Radeon HD 5750, 1 GB
#luxcorerender | Gfp = SFFT Gflops

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FarbigeWelt
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Mushroom Trees, a bit more natural

Post by FarbigeWelt » Sun Jun 09, 2019 8:11 am

Actually it is simple. Human perception is used to realize very fast repeating patterns. In a glimpse symmetric or mirrored patterns are visible to human even if the source pattern is made from black and white square. To symmetric or to perfectly rectangular aligned objects look odd because in nature there are rare occasions only. There seems to be a limit of acceptable symmetry. There lies a beauty in symmetry like beautiful faces or butterflies but there are always little differences of left right. I guess small varieties are a key to natural look. I made only a few simple object modifications and re-rendered the former image. There are still a lot of repeating patterns. In the new image these are less obvious and I am quite satisfied with result now. :D
Mushrooms openCL PGIC 1500 samples 1 GPU 1h41m09s init 1m26 expt 1m35s.jpg
Mushrooms openCL PGIC 1500 samples 1 GPU 1h41m09s init 1m26 expt 1m35s
I had to reduce the number of lights because the light buffer exceeded the max allocatable memory block of 4GB on a 8 GB card (?). Render time increased about 20 minutes, I guess this is because the mushroom objects have more faces than in the earlier version.
160.8 | 42.8 (10.7) Gfp / Windows 10 Pro, intel i7 4770K@3.5, 32 GB | AMD R9 290x+R9 390x, 4 GB
17.3 | 19.0 ( 4.7) Gfp / macOS X 13.6, iMac 27'', 2010, intel i7 870@2.93, 24 GB | ATI Radeon HD 5750, 1 GB
#luxcorerender | Gfp = SFFT Gflops

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FarbigeWelt
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Jade Dragon with Ball

Post by FarbigeWelt » Mon Jul 08, 2019 8:45 pm

Was just an idea to look around for a free model figurine to download somewhere. Most sites I found require a gratis account. But I did not like to sign for an account even if it is free. I only wanted to download a model to play with. Fortunately I found Artec 3D's home page. They have models for download without account. Artec 3D distributes their own 3D scanners. The simplest model starts at 6'700 Euro. Their products are definitely not for everyone. However, the model I downloaded looks very well this means Artec 3D's scanner's scans meet high quality requirements.
Jade Dragon with Ball, openCL Hybrid, 1000 samples OIDN 0.95, 33ms16.png
Jade Dragon with Ball, openCL Hybrid, 1000 samples OIDN 0.95, 33ms16
160.8 | 42.8 (10.7) Gfp / Windows 10 Pro, intel i7 4770K@3.5, 32 GB | AMD R9 290x+R9 390x, 4 GB
17.3 | 19.0 ( 4.7) Gfp / macOS X 13.6, iMac 27'', 2010, intel i7 870@2.93, 24 GB | ATI Radeon HD 5750, 1 GB
#luxcorerender | Gfp = SFFT Gflops

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Re: Jade Dragon with Ball

Post by provisory » Mon Jul 08, 2019 9:11 pm

FarbigeWelt wrote:
Mon Jul 08, 2019 8:45 pm
Was just an idea to look around for a free model figurine to download somewhere. Most sites I found require a gratis account. But I did not like to sign for an account even if it is free. I only wanted to download a model to play with...
I recommend this site:
http://threedscans.com/

Very high quality scans, no copyright restrictions and no need to register.

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FarbigeWelt
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Re: Jade Dragon with Ball

Post by FarbigeWelt » Mon Jul 08, 2019 9:24 pm

provisory wrote:
Mon Jul 08, 2019 9:11 pm
I recommend this site:
http://threedscans.com/

Very high quality scans, no copyright restrictions and no need to register.
Many thanks for the tip!
160.8 | 42.8 (10.7) Gfp / Windows 10 Pro, intel i7 4770K@3.5, 32 GB | AMD R9 290x+R9 390x, 4 GB
17.3 | 19.0 ( 4.7) Gfp / macOS X 13.6, iMac 27'', 2010, intel i7 870@2.93, 24 GB | ATI Radeon HD 5750, 1 GB
#luxcorerender | Gfp = SFFT Gflops

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