Terragen 3: Free Version = Grainy/Noise Renders

Started by Nutronic, May 31, 2015, 12:14:43 PM

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Nutronic

I have followed this tutorial: http://people.cornellcollege.edu/dsherman/terragen3-tutorial.html

When I render the image I have created it is grainy, as if there's a noise layer.

Render settings: http://gyazo.com/fbbfde3c3aa677fb8cfa54ffcf900b39

What is causing this please?


archonforest

Under Atmosphere go to Quality and give more Number Of Samples. Try 32...or more
Also u can change the quality settings for the clouds. Try like 0.5 or a little more.

These can handle grainy stuff but render time will also increase.
Dell T5500 with Dual Hexa Xeon CPU 3Ghz, 32Gb ram, GTX 1080
Amiga 1200 8Mb ram, 8Gb ssd

Nutronic

#2
Quote from: archonforest on May 31, 2015, 12:23:03 PM
Under Atmosphere go to Quality and give more Number Of Samples. Try 32...or more
Also u can change the quality settings for the clouds. Try like 0.5 or a little more.

These can handle grainy stuff but render time will also increase.

Thanks for the reply and I will try 32 samples and clouds I have set to 1.

I am willing to wait for a render if the results are good :)

Just hope my trees show up haha

Edit: Rendering still but it looks the same, Grainy/Noisy.

archonforest

Dell T5500 with Dual Hexa Xeon CPU 3Ghz, 32Gb ram, GTX 1080
Amiga 1200 8Mb ram, 8Gb ssd

Nutronic

I changed the camera angle and it is less grainy now.

It seems that I cannot have a sunset type photo which is annoying as it is what I wanted to make.

archonforest

Quote from: Nutronic on May 31, 2015, 02:01:52 PM
It seems that I cannot have a sunset type photo which is annoying as it is what I wanted to make.

Of course u can. Did u tried 64 samples?
That should work. I tried just now and almost no grain were there.

Otherwise post up your .tgd file and I will see here what u need to change.
Dell T5500 with Dual Hexa Xeon CPU 3Ghz, 32Gb ram, GTX 1080
Amiga 1200 8Mb ram, 8Gb ssd

Nutronic

Yep tried 64, I have attached the file.

archonforest

I will take it to home as my office pc just crashing on it.
Dell T5500 with Dual Hexa Xeon CPU 3Ghz, 32Gb ram, GTX 1080
Amiga 1200 8Mb ram, 8Gb ssd


archonforest

I managed to open the file. It is fairly complex set-up for a very easy render u try to do.
My dual core pc is just rendering it like a snail. I removed few things from your file like the extra sun, extra atmo...etc
and it looks okay so far. No grain with samples on 64.

U can also try for yourself. Just get rid of all those double stuff.
Dell T5500 with Dual Hexa Xeon CPU 3Ghz, 32Gb ram, GTX 1080
Amiga 1200 8Mb ram, 8Gb ssd

Nutronic

I followed the tutorial in the first post so unsure what you mean by double stuff...

Can you link me to another tutorial which doesn't have double stuff you are referring too please?

archonforest

I do not want to invalidate what u did at all just didn't understand why you need 2 sun, 2 atmo and 2 different light in that scene. My pc was rendering it like a snail while it should not be. When I deleted the second sun, second atmo...etc the rendering speeded up and all grain vanished.

Anyways try this:
http://planetside.co.uk/wiki/index.php?title=Layman%27s_Tutorial
or
http://forums.planetside.co.uk/index.php?topic=7733.0

;)
Dell T5500 with Dual Hexa Xeon CPU 3Ghz, 32Gb ram, GTX 1080
Amiga 1200 8Mb ram, 8Gb ssd

Nutronic

Ok thanks, I will take a look at them tutorials.

I would also like to know why the ball is not showing.

I inserted the Object into my landscape and it should be hovering above the ground, even added a shader to it.

archonforest

If u insert an object that will show up under the coordinates 0, 0, 0. If u moved your camera out from the default place then u will not see the object.
Do this for a test. Open TG with the default scene. Then go to objects and insert a sphere for example. The object will show up front of you in the 3D view window. Now u can place it wherever u like.
Dell T5500 with Dual Hexa Xeon CPU 3Ghz, 32Gb ram, GTX 1080
Amiga 1200 8Mb ram, 8Gb ssd

Nutronic

I did guess that and changed its coordinates by right clicking the scene and copying them that way it still didn't appear.

I will continue following tutorials  ;D