nino Posted July 31, 2009 Share Posted July 31, 2009 hi, could you tell me please, do you use often DOF(depth of field) in professioanal architectural visualization? thanks Link to comment Share on other sites More sharing options...
STRAT Posted July 31, 2009 Share Posted July 31, 2009 personally? hardly ever. but used correctly and subtly there's no reason why you shouldn't use it. it's only a lens effect and it's pretty subjective, but so many peeps over use it which makes it look just awful. Link to comment Share on other sites More sharing options...
Nic H Posted July 31, 2009 Share Posted July 31, 2009 yes i always use massive dof on most stuff tbh. my favourite is to get a bland scene, chuck in a designer chair, put the camera on the floor and do 5 renders of it with the chair half in focus. max out the bokeh as well, the more it looks like a circus the better. finish up with a gigantic soft glow and rgb offset by 2-5 pixels. maybe put a super dark gradient and some 'film grain' on as well. done. Link to comment Share on other sites More sharing options...
Clanger Posted July 31, 2009 Share Posted July 31, 2009 Depends on your goal. If your going for photorealism a small amount of DOF really helps, too much and it can look like a small scale model plus adding some grunge helps a lot here. But the all in focus super sharp and clean look can better show what the building will look like from a design point of view more like a diagram. Link to comment Share on other sites More sharing options...
KIT Posted July 31, 2009 Share Posted July 31, 2009 I agree with what was said above. DOF it's not mandatory, but when used correctly it can be great for leading the eye of the viewer or giving more depth and realism to the scene. Link to comment Share on other sites More sharing options...
nino Posted July 31, 2009 Author Share Posted July 31, 2009 thanks...yeah I found a small amount can be good....especially soft on the objects in front of the scene.... I think usually it is used to add an artistic mood :-) Link to comment Share on other sites More sharing options...
BrianKitts Posted July 31, 2009 Share Posted July 31, 2009 rgb offset by 2-5 pixels should I feel dumb for not knowing what you're talking about on this one? Link to comment Share on other sites More sharing options...
Stephen Thomas Posted July 31, 2009 Share Posted July 31, 2009 should I feel dumb for not knowing what you're talking about on this one? I think he's referring to the fake 'chromatic abberation' that people sometimes apply to their renders to make them look like they were taken with a crappy camera. Link to comment Share on other sites More sharing options...
Nic H Posted July 31, 2009 Share Posted July 31, 2009 yes sorry i was being stupid, again. Link to comment Share on other sites More sharing options...
BrianKitts Posted July 31, 2009 Share Posted July 31, 2009 ahhh gotchya Link to comment Share on other sites More sharing options...
Jeff Mottle Posted July 31, 2009 Share Posted July 31, 2009 yes i always use massive dof on most stuff tbh. my favourite is to get a bland scene, chuck in a designer chair, put the camera on the floor and do 5 renders of it with the chair half in focus. max out the bokeh as well, the more it looks like a circus the better. finish up with a gigantic soft glow and rgb offset by 2-5 pixels. maybe put a super dark gradient and some 'film grain' on as well. done. LMAO. I think Alex Roman's recent film and images on his site are a perfect example when DOF can be used succesfully in arch viz. Link to comment Share on other sites More sharing options...
jinsley Posted July 31, 2009 Share Posted July 31, 2009 LMAO. I think Alex Roman's recent film and images on his site are a perfect example when DOF can be used succesfully in arch viz. indeed... that is some beautiful work being turned out there... I would suggest dropping by his website and checking it out. definitely a talented individual... --> http://www.thirdseventh.com/ Link to comment Share on other sites More sharing options...
cadmunkey Posted August 3, 2009 Share Posted August 3, 2009 indeed... that is some beautiful work being turned out there... I would suggest dropping by his website and checking it out. definitely a talented individual... --> http://www.thirdseventh.com/ Some amazing images on there, thanks for posting the link. Link to comment Share on other sites More sharing options...
erickdt Posted August 3, 2009 Share Posted August 3, 2009 I think what makes Alex Romain's use of DOF so realistic is the fact that it kind of fades in and out of focus (animated). I wonder what the best way of achieving this is within the 3D Software (I'm using MAX) or in post (AfterFX, etc.)? Link to comment Share on other sites More sharing options...
Nic H Posted August 3, 2009 Share Posted August 3, 2009 do it in post (much more flexibility and better quality - faster) with a good zdepth with full black - white range (16bit or 32 bit much better than 8bit for this kind of thing) alex roman says he uses after fx so i assume he uses it in conjunction with a plug in like lenscare and animates the focus point (or whatever it is in lenscare) he also makes use of bokeh (the pretty bright shifting shapes when things are out of focus) which adds ALOT to the depth and feel of things. you can control this in post quickly as well. Link to comment Share on other sites More sharing options...
erickdt Posted August 3, 2009 Share Posted August 3, 2009 Not being too familiar with how exactly ZDepth works I wonder if you could give me a quick description of how that would work. My sans ZDepth approach that I'm thinking of trying was to seperate the elements (foreground and background elements) in post via object ID, put them on seperate layers and then use Gausian blur with keyframes to make it fade in and out. I'll let you know how it works out. I would still like to know more about the ZDepth method though. Link to comment Share on other sites More sharing options...
Nic H Posted August 3, 2009 Share Posted August 3, 2009 A zdepth render is basically a black and white image with things being closest being white, and things further away being black, with a gradation in between. (or inverted, doesnt really matter) you want to have your 'range' set to be at the furthest object in your scene from the camera. do you use vray? its a standard vray render element, just tick it to enable it and set your distance as mentioned above. Otherwise you can apply a Falloff map in the diffuse, then apply that material to your whole scene (or in global mat override) and set it to 'distance blend' mode, making sure to put in the range. Use this zdepth as the input/depth map in afterfx lens blur /lenscare (not sure of specifics as i dont use afterfx) best do a quick test with some boxes and teapots to try it out. Link to comment Share on other sites More sharing options...
KIT Posted August 3, 2009 Share Posted August 3, 2009 Most 3d Apps can output a zDepth image, which is basically a render of the scene where objects are colored from black to white depending on their distance to the camera (AKA zDepth). Thus objects closer to the camera appear white, while those far away appear black. This can be imported into any image editing software and use as a basis for manipulation. For instance you could load it as a selection in PhotoShop and use Gaussian Blur with that selection. Since different parts of the image will be more or less selected depending on their distance to the camera you basically get a "Blur by distance" effect. It's basically the same idea behind what you were thinking...but better. The newer PhotoShops have a Lens Blur filter that let you load a Depth Map (another name for the zDepth image) and use that for blurring. EDIT: seems I got here a second too late...o well...great minds think alike.... Link to comment Share on other sites More sharing options...
erickdt Posted August 3, 2009 Share Posted August 3, 2009 Sweet. Will do. FWIW: I think Alex Romain's videos have been an inspiration to all of us (definately for me) to bring our work to the next level... Link to comment Share on other sites More sharing options...
Nic H Posted August 11, 2009 Share Posted August 11, 2009 just came across the worst use of dof i have seen truly awful http://www.evermotion.org/vbulletin/showthread.php?t=75872 Link to comment Share on other sites More sharing options...
cadmunkey Posted August 11, 2009 Share Posted August 11, 2009 just came across the worst use of dof i have seen truly awful http://www.evermotion.org/vbulletin/showthread.php?t=75872 the majority of responses seem to be positive... Link to comment Share on other sites More sharing options...
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