Thinking Particle Self Collision

[Jan Zhgut]

Model size in my project is according real size object. The main reason that I’ve used E3D in my grain machine project is the impossibility to get a realistic image.
The material that I drop to different part models looks stretched. If I scale UV map, I get seam and the function “seamless” don’t do better. I can’t understand how to get galvanized metal like here https://www.turbosquid.com/3d-models/3d-model-grain-bin/1095336. (it’s not a site advertisement or my work, just only example)
Here is my first rendering. (model size is according real size object>>> all are dropped in null object>>> scale null object is down to 0.25 )

If you look at section “1” , you will see not bad result. But the section “2” and “3” is awful! Noise! noise! noise! noise! Noise will appear every time and every there on my model if I turn the camera.
I have next question:
1. Do I need to downsize my model or put real size model in null object and after scale null object…
2. Will I get good render result (like silo) by c4d render tools or need alien render soft (Maxwell, Corona, Vray)?
3. work with light is correct with not large objects … the size of the object is important for the light settings…. After I had scaled light scene GSG for real size model, I’ve got less result….
4. Maybe I don’t know about something basic!

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No matter how bad it is, or how bad it gets; I\’m going to make it. (Les Brown)

[Brian Jones]

you’re using GI, looks like the Physical renderer. All GI produces noise which cleans up with time. With Physical that means pure time if you are using the Progressive sampler (you just wait until it’s clean enough) and if using Adaptive you get less noise as you increase the sampling subdivision setting that takes more time as the samples go up and it has less noise but you just ‘get what you get’ when it’s done so if it’s still too noisy you have to try again. I use Corona usually and it’s just the same – more time equals cleaner render but it has controls to stop when a chosen noise level is reached and it has a good denoise function as well to shorten renders by cleaning the noise after the render. (and if you preplan and set things up right you can render then change lighting after the render is done without having to re-render etc.)
Scale is usually best if it’s real scale, it depends on the renderer but usually it looks more real if it is real scale – that assumes the lights are real scale too. If you are using GSG light kit lights they would give better results if the model is scaled down because they are meant to be lights in a studio, to look better the model needs to be that size too.
It depends on the look you are going for though if you want it like your example render then scaling it down so it looks like it’s lit in a studio could be right. For that scene to be lit normally (ie. outside) you’d need a sky (imagery or physical sky) which would mean sharper shadows (sunny day)…

[Jan Zhgut]

Thank you very much!???? I didn’t know about this setting before now!???? I’ve found in C4d help theme about Physical Render. I will study it and experiment with different settings!

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No matter how bad it is, or how bad it gets; I\’m going to make it. (Les Brown)