Trying out the latest 2.52. A test with hdri+mesh emitters
Building - Sunrise
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Important notice: All artwork submitted on our public gallery forums gallery forums may or may not be used by OTOY for publication on our website gallery.
If you do not want us to publish your art, please mention it in your post clearly. (put a very red small diagonal cross in the left right corner of the image)
Any images already published on the gallery will be removed if the original author asks us to do so.
We recommend placing your credits on the images so you benefit from the exposure too, and use a minimum image width of 1200 pixels, and use pathtracing or PMC. Thanks for your attention, The OctaneRender Team.
For new users: this forum is moderated. Your first post will appear only after it has been reviewed by a moderator, so it will not show up immediately.
This is necessary to avoid this forum being flooded by spam.
Hi guys,
Trying out the latest 2.52. A test with hdri+mesh emitters
Trying out the latest 2.52. A test with hdri+mesh emitters
Last edited by afecelis on Sat Sep 03, 2011 5:35 pm, edited 3 times in total.
Win10 Pro | Geforce GTX1070 8gb Vram X2 (display/render) | Intel Core I7 4770K 3.5GHz | 32GB DDR3 1600 Ram |Nvidia 378.78 drivers | Cuda 8.0 | Blender/Modo/Sketchup
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merid888
hola acelis, buen principio, practica el octanerender, es lo que te puedo decir
saludos
saludos
Gracias mil, en eso ando 
Win10 Pro | Geforce GTX1070 8gb Vram X2 (display/render) | Intel Core I7 4770K 3.5GHz | 32GB DDR3 1600 Ram |Nvidia 378.78 drivers | Cuda 8.0 | Blender/Modo/Sketchup
The following points I succest you to improve/ test:
-Put only warm lights in the scene
-Make the windowsglass more reflective (use a glossy material with zero roughness and about 20% opacity) to see more reflections of the environment in it
-Put some warm lights into the interiors
-Use a HDRI with more saturation. Your HDRI has to mutch dark (black) colors which makes the hole image dark and "colorless"
-Some materials look very flat... give them a Bump or a slight reflection texture to make them "alive" or bevel (about 1cm) the edges of the geometries
Kind regards
Alain
-Put only warm lights in the scene
-Make the windowsglass more reflective (use a glossy material with zero roughness and about 20% opacity) to see more reflections of the environment in it
-Put some warm lights into the interiors
-Use a HDRI with more saturation. Your HDRI has to mutch dark (black) colors which makes the hole image dark and "colorless"
-Some materials look very flat... give them a Bump or a slight reflection texture to make them "alive" or bevel (about 1cm) the edges of the geometries
Kind regards
Alain
Intel Pentium 2.8 GHz 2 Cores, 8 GB RAM, GeForce GTX Titan 8GB, Blender 2.72b, Win 7 64 Bit
Thanks a lot Alain!
Your recommendations are very valuable, I appreciate them. Will start testing them asap.
Kind regards,
Alvaro
Edit: Alain, one question. I'm getting a lot of fireflies that won't ever go away using a specular material for glass , with your glossy material setting for glass will they decrease a bit?
Your recommendations are very valuable, I appreciate them. Will start testing them asap.
Kind regards,
Alvaro
Edit: Alain, one question. I'm getting a lot of fireflies that won't ever go away using a specular material for glass , with your glossy material setting for glass will they decrease a bit?
Win10 Pro | Geforce GTX1070 8gb Vram X2 (display/render) | Intel Core I7 4770K 3.5GHz | 32GB DDR3 1600 Ram |Nvidia 378.78 drivers | Cuda 8.0 | Blender/Modo/Sketchup
Alain, I tried your suggestions out. I added some emitters for the windows, changed the lights to a warmer temperature, added bump to several materials (though it's still not noticeable), and changed the hdri image I was using. I also changed to the path tracing kernel, and light's bouncing a lot more now. The result so far is this:
I like the effect, which is more accurate, but I'm also worried about the fireflies. Will they ever clean up, or is there a way to reduce them?
Thanks for any help in advance
cheers,
Alvaro
I like the effect, which is more accurate, but I'm also worried about the fireflies. Will they ever clean up, or is there a way to reduce them?
Thanks for any help in advance
cheers,
Alvaro
Win10 Pro | Geforce GTX1070 8gb Vram X2 (display/render) | Intel Core I7 4770K 3.5GHz | 32GB DDR3 1600 Ram |Nvidia 378.78 drivers | Cuda 8.0 | Blender/Modo/Sketchup
OK, things are looking better this morning
I'm a bit concerned because of the picture dimensions, In this small version (717x1024) the noise is reduced a lot, but the original version is 2645x3780 (almost 70cmx100) and will be printed, and noise is noticeable at that picture size. Though it's alot cleaner than the previous method I was using before, I hope it cleans the fireflies considerably.
cheers,
Alvaro
I'm a bit concerned because of the picture dimensions, In this small version (717x1024) the noise is reduced a lot, but the original version is 2645x3780 (almost 70cmx100) and will be printed, and noise is noticeable at that picture size. Though it's alot cleaner than the previous method I was using before, I hope it cleans the fireflies considerably.
cheers,
Alvaro
Last edited by afecelis on Sun Sep 04, 2011 11:49 pm, edited 2 times in total.
Win10 Pro | Geforce GTX1070 8gb Vram X2 (display/render) | Intel Core I7 4770K 3.5GHz | 32GB DDR3 1600 Ram |Nvidia 378.78 drivers | Cuda 8.0 | Blender/Modo/Sketchup
It looks mutch better now
In a scene of mine I found out that if you use a Glossymaterial for glass then you result in a stronger reflection as if you would use just a specular one.
I'm not sure about the fireflies, I guess in the newest Beta 2.52 fireflies are almost gone anyway.
Have look at some windows glass in your building. I looks like the glass is emitting light ? This looks wrong because at night if light is tunred on in a room you can see inside the room. So maybe you have to build a room behind those windows ?
Kind regards
Alain
In a scene of mine I found out that if you use a Glossymaterial for glass then you result in a stronger reflection as if you would use just a specular one.
I'm not sure about the fireflies, I guess in the newest Beta 2.52 fireflies are almost gone anyway.
Have look at some windows glass in your building. I looks like the glass is emitting light ? This looks wrong because at night if light is tunred on in a room you can see inside the room. So maybe you have to build a room behind those windows ?
Alain
Intel Pentium 2.8 GHz 2 Cores, 8 GB RAM, GeForce GTX Titan 8GB, Blender 2.72b, Win 7 64 Bit
Fantastic! Thanks a lot Alain, for taking the time to check and correct my image.
You have a sharp eye! I forgot to separate the back light of the car into another material so they're both white! lol. I hadn't even noticed that one!
About the windows, it's not that the glass is emitting light, I was checking some buildings at night and I noticed that even when they had their shades down, and the light inside was on, the effect is as if the shade became a mesh emitter (SSS?), so that's what I tried to mimick here; I placed several mesh-emitting planes randomly throughout (behind) the windows to achieve such effect. The problem was that I already had lights (by lights you mean mesh-emitting materials, right?) inside the apartments, and they're fully modeled (walls-wise) but they didn't fully illuminate the space inside, check the windows without a mesh emitter and you'll see what I mean. About turning some more off, I know there's a lot of activity going on at the same time there, lol, but I'm a bit concerned that if I turn many of them off the effect won't be as noticeable I'll make the suggestion to the client but I'll let him make the final decision.
About nowhereland (lol), what is usually done here? Model some boxes at different heights resembling buildings in the background? I'm gonna check some reference renderings on that one.
A quick question on the glossy material for glass (or better said, 2 questions). Does this material allow the passing-through of sunlight inside? And 2, the glasses in this project have a greenish tint in them that was possible using the specular material, can it also be obtained in the glossy material?
About fireflies, I don't know if it's because I'm using the PT kernel, or because of the glass/glossy material change, but in the previous version the render finalized the 16.000 samples in 23 hours and stopped and it was still noisy, in this version I'm on 8600 samples/32 hours and it's a lot cleaner, and still has samples to go, as if it could dedicate more time and efforts to clean up the noisy parts, funny but lucky
Once more, thanks a lot, it's always great to find a guiding/helping hand.
regards,
ALvaro
Thanks a lot Alain, for taking the time to check and correct my image.You have a sharp eye! I forgot to separate the back light of the car into another material so they're both white! lol. I hadn't even noticed that one!
About the windows, it's not that the glass is emitting light, I was checking some buildings at night and I noticed that even when they had their shades down, and the light inside was on, the effect is as if the shade became a mesh emitter (SSS?), so that's what I tried to mimick here; I placed several mesh-emitting planes randomly throughout (behind) the windows to achieve such effect. The problem was that I already had lights (by lights you mean mesh-emitting materials, right?) inside the apartments, and they're fully modeled (walls-wise) but they didn't fully illuminate the space inside, check the windows without a mesh emitter and you'll see what I mean. About turning some more off, I know there's a lot of activity going on at the same time there, lol, but I'm a bit concerned that if I turn many of them off the effect won't be as noticeable
I'll make the suggestion to the client but I'll let him make the final decision.About nowhereland (lol), what is usually done here? Model some boxes at different heights resembling buildings in the background? I'm gonna check some reference renderings on that one.
A quick question on the glossy material for glass (or better said, 2 questions). Does this material allow the passing-through of sunlight inside? And 2, the glasses in this project have a greenish tint in them that was possible using the specular material, can it also be obtained in the glossy material?
About fireflies, I don't know if it's because I'm using the PT kernel, or because of the glass/glossy material change, but in the previous version the render finalized the 16.000 samples in 23 hours and stopped and it was still noisy, in this version I'm on 8600 samples/32 hours and it's a lot cleaner, and still has samples to go, as if it could dedicate more time and efforts to clean up the noisy parts, funny but lucky
Once more, thanks a lot, it's always great to find a guiding/helping hand.
regards,
ALvaro
Win10 Pro | Geforce GTX1070 8gb Vram X2 (display/render) | Intel Core I7 4770K 3.5GHz | 32GB DDR3 1600 Ram |Nvidia 378.78 drivers | Cuda 8.0 | Blender/Modo/Sketchup
