Hello all, whats new and whats shakin...

I would like some advice and suggestions on creating ground level fog. My attemps so far yield undesirable results, and I am out of ideas, time to try a different method...

If I use a fog box, the box is way to small, and if/when I increase the size to encompass the area to be covered in fog, even at the strongest denisity no fog is visible... I tried using a meta cloud, but they are so large they are too much trouble to control, and also yield no visible fog/clouds. I have replicated a small fog box over an area, but that results in "boxes" of clouds (the fog box at that size actually maintains the shape of a box), doesnt look good at all =(

Are there fog/cloud shaders that can be applied to boxes made to encompass the fog area?!?

What other options do I have? What method do you guys use (posting or linking to an image couldnt hurt) or what do you suggest for "realistic" cloudy ground level fog...

Any help would be greatly appreciated.....

I used a fog primitive to create this scene, and I need to scale it to 20000 meters:

You can get the file here:

http://www.euqfiz.com.br/imagens/fog.car

Is this something that is dependant on the size/proportions of the overall scene vs the objects?!? Admittedly, I do use plenty of Poser imported figures and dont know if that should be taken into consideration. Im using Cararra Pro 6.2.1, Transposer 2 for C6Pro if that matters at all...

I took your scene, and imported a simple poser character... He came in at 1.25ft, pretty much microscopic in your scene =B Your terrain is also HUGE, as a terrain should be, so maybe its the way I scene build that causes this problem?!?

(I resized the character to about 960in to be visible by the camera btw)

The scene Im working on, my character is about 15in, and my terrain 100in across... Your terrain was 100000ft....

Is that the key difference when adding effects and lighting to scenes?!? Are we to use real world proportion/sizes?!?

If I have to do it in C6 with no postwork, I just use the realistic sky fog settings, along with a couple of strategically placed fog boxes.  But I usually use Paint Shop Pro with the Alien Skin Fluffy White Cloud filter.  I open the render I want to work with, then create a second layer.  In the new layer, I select the entire aree (Make sure the use all layers checkbox is not checked.  Then I use the cloud filter to get the desired result.  I then drop the opacity of the new layer to about 15-20%.  If you look at the newest post to my gallery, you will see what I mean.  I used a soften fil;ter and then the cloud filter.  The effect is very very subtle, which is what I wanted for that render.

http://www.renderosity.com/mod/gallery/index.php?image_id=1721353

You can also make selective layers with just limited areas to get an unaven patchy fog effect.

The main advantage of doing this in postwork, is that you can immediately see what the altered image will look like without having to wait for a test render.

Sparrownightmare

(Typoes included for no additional fee...)

No, you can use any size proportions... the problem is that you need to play with the values for the Fog primitive. One great tip here is to use a red color for the fog when you are adjusting the settings, this way you will see the fog very easy, then turn it to white or grey when done.

I've used volumetric clouds to simulate thick, soupy fog.

In this image - http://www.renderosity.com/mod/gallery/index.php?image_id=1693266&member - I used a volumetric cloud to create the mist - just another option you could try.

1st off, I want say thanks for all the response and help, it is really appreciated... Im just really trying to work this out, smoke is an awesome effect Id like to incorporate into my imagery...

In the image, on the top left, I did indeed set the fog color to red (that was an awesome idea btw), w/ a density of 2 (maxed out I believe?!?) for maximum effect and visibility, all other settings are at their default... For the top right, I set the density back to default of 1...

For the bottom left, I tried "playing/experimenting" w/ the settings, still not the result Im trying to achieve. I also added another fog primitive, placed near the figures face to our right... Its at default settings, except for the shape of the fog primitive was switched to sphere...

The bottom right is actually an attemp at using Volumetric Clouds, and like you, I just dont see it... Mind you, the Volumentric Cloud Primitive bounding/size box was reduced from its original size of 12672.79x12672.79x6336.39in to a mere 120x120x16in (note the height is reduced non-uniformly when fitted to my scene) for easier "manipulation"..............

Ive tried many more times than just these 4 renders, but none of the settings w/ the fog give results I like... I can even say I dont like "fog" which seems to be just a layer of haze.... Im going for more of a smokey, toxic pollution air on the bottom of the surface of planet X-23 type look, if that makes any sense...

In the 1st fog example, you can see swirls and variation spread through the terrain. In the soupy tree, you can "see" the cloud, as in the third. Im just not getting anything to show =(

Slight mistake...

The bottom right has no fog or cloud primitive. it was my primary render so I can see the scene before applying effects.

This is the correct image, rendered w/ the resized volumetric cloud...........

No difference............

Me again =B So sorry guys for being a pita, but Im seriously desperate to improve my imagery by taking advantage of special effects. Still havent locked down on a way/method/settings that yield results I want, and Ive done alot of experimenting...

In the Top Left Image, I used an old volumetric cloud primitive, and placed it just at the characters torso... Its at its default settings and size, totally NOT the effect I want. The Top Right image uses a cloud primitive, again at the torso and at default settings and size, hardly visible...

Now in the middle right, we begin to see "Something", and thats a start. Thats the volumetric cloud w/ its hot point centered and set at the screen center (so basically it encompasses the entire scene w/i the primitive) at its default settings... The Middle Right I went crazy w/ the settings, trying to get a cloud so thick, youd need a sword to cut through it. To my surprise, the render wasnt just a cloud (I wasnt expecting anything to be visible), but would like to understand how that darkened the scene w/o any visible cloud/fog... The bottom two, all set back to default settings, and only increased the density, at 90 and 100 respectively... Even at 100% density, the cloud/fog isnt thick and clumpy and doesnt seem to "interfere" w/ the rest of the scene... Even before I can resize/position the cloud to where I want it, I want to achieve the proper effect...

Any ideas on what settings I should use?!? So far, I like the volumetric cloud best but think the settings could use adjusting... Any ideas before I go off rendering 1000 experiemental renders =)