General Category > Work in Progress/Tests

[WIP] Theatre/ learning Corona

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andreupuig:
Hi Coronauts,
I'm working on a theatre for a friend's last year university project. It came just in time for trying this wonderful renderer! Usually I use vray as my renderer of choice, but some details and materials in this project bring me the idea that Corona will handle this better than vray.
The main hard work for vray could be the ceiling: there are series of rectangular extruded profile that light cache and irradiance map will go crazy to calculate. There are also a lot of blurry reflection and some indirect lights.
At this moment I build the main structure and some furniture (the bookshop on the right), I have to fill the foyer with people (the models in the render are just placeholders) and objects like banners, chairs, actors...
"Secondary ceiling lights" are not defined yet, they will come soon. Exterior light is Corona sky for the environment and a Corona sun set at low altitude to simulate a late summer afternoon.
There will be interior and exterior renders.

Meanwhile I'm trying to understand/optimize render settings. I used PT+HC cache as suggested in the tutorials and in the forum, but some settings are still a mistery. I read and re-read the online documentation, I'm sure that with practice everything will become more familiar.

The big question now is how to reduce all that noise in the fartest part, the wall at the end of the foyer. The material is the same concrete on the left, but it is unrecognizable. The nearest part has low noise level (due to a big opening behind the camera...), but the fartest part show high amount of noise (there's a big opening on the left). Another thing that left me astonished is that the low glossiness metal is noise free. I think that the noise on the fartest part of the foyer is carried by the light samples (!??). Obviously every glass is single plane with single sided glass material. I reached pass 41, but at pass 25/30 the render was the same. I think that if I let render few hours more the noise will reduce, but maybe there are some settings totally wrong due to my inexperience.

I'm still working on this scene, I will post updates soon. Bye!

lacilaci:
well, try gaussian at 2 or turn image filtering off

woshilvba:

--- Quote from: andreupuig on 2012-10-29, 18:28:11 ---Hi Coronauts,
I'm working on a theatre for a friend's last year university project. It came just in time for trying this wonderful renderer! Usually I use vray as my renderer of choice, but some details and materials in this project bring me the idea that Corona will handle this better than vray.
The main hard work for vray could be the ceiling: there are series of rectangular extruded profile that light cache and irradiance map will go crazy to calculate. There are also a lot of blurry reflection and some indirect lights.
At this moment I build the main structure and some furniture (the bookshop on the right), I have to fill the foyer with people (the models in the render are just placeholders) and objects like banners, chairs, actors...
"Secondary ceiling lights" are not defined yet, they will come soon. Exterior light is Corona sky for the environment and a Corona sun set at low altitude to simulate a late summer afternoon.
There will be interior and exterior renders.

Meanwhile I'm trying to understand/optimize render settings. I used PT+HC cache as suggested in the tutorials and in the forum, but some settings are still a mistery. I read and re-read the online documentation, I'm sure that with practice everything will become more familiar.

The big question now is how to reduce all that noise in the fartest part, the wall at the end of the foyer. The material is the same concrete on the left, but it is unrecognizable. The nearest part has low noise level (due to a big opening behind the camera...), but the fartest part show high amount of noise (there's a big opening on the left). Another thing that left me astonished is that the low glossiness metal is noise free. I think that the noise on the fartest part of the foyer is carried by the light samples (!??). Obviously every glass is single plane with single sided glass material. I reached pass 41, but at pass 25/30 the render was the same. I think that if I let render few hours more the noise will reduce, but maybe there are some settings totally wrong due to my inexperience.

I'm still working on this scene, I will post updates soon. Bye!

--- End quote ---
Will adjust the refraction mode Twosided, to reduce glass on the back of Noise.

andreupuig:

--- Quote from: woshilvba on 2012-10-30, 06:07:16 ---Will adjust the refraction mode Twosided, to reduce glass on the back of Noise.

--- End quote ---

Ops, I was tired...I set the opposite as I wrote. Yes every glass material has TWOSIDED option active.

I tried Gaussian at 2, but I have to reach high pass values to understand the texture on the wall and it blur the image too much. No image filter gives understandable texture faster, but the biggest noise is carried by lights.

Paul Jones:
Increase light sample multiplier?

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