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salf

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    salf
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  1. Ok, started tweaking the BRDF settings one thing led to another, tests, tests, more tests, after almost a whole day of different iterations, I "inverted" the reflection map (so it's more on the white side than dark) and that did it for the concrete. The floor kept on having issues, it was either too shinny or with extremely "granular reflections" (if that makes sense) I Think that the .jpg file I used for the floor (diffuse, bump and reflections) might be low quality, I gave it a try with regular A&D polished concrete and changing the default diffuse map for another and it look better. At the end I just composed 3 different reflections passes in photoshop.
  2. Concrete material screenshots. Showing the DIffuse and Reflection textures used. For BDRF I'm using an IOR of 2.0.
  3. Ok, I went back and gave it another try. While it's better than before ( turning off the visibility of the photometric light) I'm still having some issues, not entirely happy with the image. 1- Reflections on the concrete (and even on the floor) looks too "shiny", almost as if the wall has been varnished. I'm setting the Reflection pretty low 0.2, glossiness around 0.4 and samples about 32, using a reflection map. 2- Still having some "sparks" on the floor. I clicked the NOT AFFECT THE DIFFUSE MAP option for the bump map just in case that's causing the issue, but not much change. 3- Some bad shadows/artifacts in the background room.
  4. Hey Justin, thanks for the tip! Sadly it didn't work. After a few more tries I gave up and just disabled the photometric light. However I think I now know what was the problem, based on Ludvik Koutny's tutorial of the Esherick House, I think the issue was that I had the photometric light to be "visible" in the rendering, apparently MR's AA can't handle this very well. I should rather use a glowing material instead. I'll go back and try it out.
  5. Long time no post, I've been away from arch viz for like 5 years, just recently found more time to start practicing again. Nowadays it looks like Vray is the favorite, there's more tutorials and info for vray than mental ray out there, and Vizdepot (my mental ray go to help forum) shut down. Anyways, I'm having this problem with glossy reflections, I call them "sparks", doing a search for "artifacts" comes back with other types of issues. I'm rendering a concrete wall, I want it to be a little aged, with rough parts, which is why I'm using a reflection map (specular in vray lingo) that way it will be reflective only on smooth areas and not in the rough parts. The yellowish reflection is caused by a photometric light in the scene, a warm bright light. But it's causing those little sparks or artifacts, as you can see the reflections by the environment (mr sky + sun) are ok. The first 3 images used 0.7 reflection, 0.7 glossiness and about 24 glossy samples, the location of the "specular map" is listed in the images. For the remaining 3 I just upped the reflection to 1.0, and the last one I used Fall Off instead of the "specular map" ANy ideas? Could it be the photometric light?, should I try other type? I'll keep on testing on my end, but maybe someone here could know how to fix it. thanks! EDIT: BTW, images 1 and 3 are more like it the reflections I want (based on the blueish environment reflections) the other seems like someone applied varnish on the concrete wall.
  6. excellent tutorial. Always wondered how Juan did his work. But he doens't gives away all his secret, what I find most impressive in all o fJuan's works is how he prefectly blends in the people.
  7. On constructions drawings....what's the "supposed" industry standard for : - Text height/size (for everything from dimensions, door tags, room tags, etc, etc) - Symbols (elevation call outs, section call outs, Finish floor levels, etc, etc) Both of them in the US. Some info first, I've been working in the US for like 2 years now, and this year the office wants to get their sh*t together and finally set an office CAD standard, it was suppose to be like this since quite some time ago, but it never happens, new layer colors, new plotters, new cad versions, new lineweights, etc, etc. And all the symbols, blocks, dimension styles, etc, are using that new feature (don't recall the name, dynamic?) anyways, you insert a window tag, and it will allways resize itself depending on what's the plot scale. Before this, we had a collection of sample blocks, each one for different plot scales, so you used them according to what would be the final drawing scale. Now, here's my main problem with it: Apparently the "US industry (or whatever) standard" says that all text heights should be 3/32" real size meaning that no matter what scale the drawing is pltted at, if you take a scale or ruler and measure the text it should be 3/32". I find this absurd, this is what the office says, but I find it hard to believe, since this text height drives also whatever symbol that text is. So lets say a floo rplan at 1/8" =1', when you place all the ROOM IDENTIFICATIONS, DOOR TAGS, WINDOW TAGS, and on top of that the dimensions, the drawing is unreadable, there's simple no place to put all that info within the drawing. I'm not sure if you guys out there understand what I'm saying, but if you do, is it truthat 3/32" size rule?
  8. And all this time I thought adding GI to FG would only increase my render times (since I get nice results with FG only), when it could actually be the other way around.......gonna start using FG + GI and see.....
  9. uh?, didn't follow that, in any case see my revised post regarding that particular point, it's more specific, you'll get it. lol...not sure, it does looks like that sometimes, but trust me, it's no isolated case, that's what happens everyday in I bet all architectural offices when it comes to rendering.
  10. Not to beat a dead horse again, AJlynn already say it, but.......if you don't agree with what the blogger wrote, you're obviously not an architect, in an architectural office doing renderings. period. Sorry Ernest, nothign against you, your post happens to be in the latest page so I quoted it Yeah right, particurarly when a Principal comes at 3pm and tells you, "so and so isn't here" we need this rendering presentation for tomorrow at 12 o'clock. A project you have never heard or worked on, there's no drawings or plans or section or anything, just some bizarre sketch of what the Principal has in his mind, and of course, they don't want a "fuzzy sketchy look" they want is as it was already constructed and a picture was taken. you're missing the point, again...the Principal wants to see an advance to do more changes at 430 pm because he has to leave to a meeting (remember he came to you at 3 pm) He think the computer does all eth work, you just move your mouse around and magically the rendering takes place. yeah you're right there are countless changes in an architectural project, but this takes months, even years, we're talking about a 2 days rendering outta nothing. , no dude, you're on your own, that's why you're doing the rendering in the first place and not someone else. Besides, the original article talks about different ways of doing something, If i model in 3d in CAD and render in MAX, maybe a coworker, knows C4d or skecthup only, so he can not help me. You're right, and if what keeps me form being being homeless would be to clean bathroom, I'll gladly do it, but that's not the point. It's my understanding you have your own company, right?, well, imagine a client goes to your office and stands behind you all day looking at the screen what you're doing and asking for rendeirng previews every 10 minutes, instead of letting you work in peace, that's what he means with personal space. Will you complain or will you be glad becasue atleast you're not cleaning bathrooms? Again you're not an architect in an architectural office, right?, it's not that 3d viz isn't important or a valuable knowledge, not at all. It's that you're an architect, and while you're trying to figure out why that frigging glass pane in the 10th floor isn't reflecting anything, the guy sitting next to you is learning how to detail a vapor barrier or a 2 hours fire separation wall assembly, and that's what you want to learn, not how a falloff reflection works. same as above. when it's time to promote or give more responsibilities, lets say managing a project, they will look for someone who was involved with that in otehr projects, not someone who only renders. hehehe, but seriously, you can produce renderings better and faster than me, that's your proffession, I bet if someone asks you to fix their car, cut their hair, build their house you won't be able to do it, or you will, but it will take you a lot of time and it wont be as good as if a mechanic, stylist or contractor does it.
  11. Hey Dave, you still at Ewing Cole?, I interviewed with them about a year ago, glad I didn't accept it, I heard they layed off a lot of people because of the crisis. Shoot me a PM. On Topic: Yeah, I know it's better to start off with a big res. rendering, but sometimes you don't have the time, specially when the "higher ups" don't know how rendering works, and they can't really work with clay model renderings, they want the whole picture done to sketch over it. I didn't know that 10% trick...gonna try it.
  12. http://www.ononesoftware.com/products/genuine_fractals.php It's aplugin, it says it allows you to resize you rimages without loss of quality. Is that 100% true? If so, it's great, I would buy it, if it would save me hours in rendering, since I could get away with smaller size, and then just resize it.
  13. I was about to open a new thread regarding the same issue. I read this, but it's not working properly on my end, maybe I missed something. Basic model, a tall building, curtain wall, mr sun and mr sky, mr photographic exposure. So far so good, now Im assigning materials, A&D thin glass for the curtain wall, not so much reflections, and the mr sky in the background it's too dark for the kind of sun I have, so I use a sky jpg as the environment, hit render and: -still no reflections, and the background is now pitch black. I switched to LOGARITHMIC EXPOSURE CONTROL, click the exterior daylight option and hit enter: - I start to get the sky bitmap reflections, but the background stills black. I read this thread, I modify the output amount value from 1.0 to 1.2, and with this value I get the reflections I want in my glass, however no background, just black. I only start seeing the background with an output value of 60 or something (and its not even the blue sunny sky form the picture, but more like gray), however, anything higher than 1.9 in the output value will make the reflections bright white, like having a mirror in front of a burning white wall. So there's no sense in going higher with the output amount. Now, all that was under Logarithmic Exposure, I switched back to mr photographic exposure (with the last output amount setting of 60) and the background is black again and I lost my reflections (the bright whites ones), so it doesn't works at all with mr photographic exposure. How to get a nice background and reflections then?, I'll work on logarithmic exposure, I'll set the output to1.2 so I get the reflections I want, and compose a background later in PS, but I know something's wrong, I should be able to do it in MAX directly without issues.
  14. Thats my problem, apparently the original drawing for teh file I have to work on, was made in REVIT but exported as a DWG, in autocad there's no issue at all (except lots of solid hatch that I got rid off), but the cad file it's ok, you can draw 2d or 3d, doesnt matter. The issue is when importing, or file linking that CAD file into 3ds MAX. Instead of having all the 2d grouped in layers, it's all broken down to every possible line or geometry, so when hitting H (select) in MAX, I have a huuuuuuuuuuuuuuuuuuuuuuuuge list, when clicking on a line, lets say a somw WALL, instead of sleecting the whole "WALL" layer, it just select that little line. Needless to say, it's imposisble to work on it, it's too slow for the PC to update when zooming, orbiting or panning, like having thousands of solids or geometry. Is there a way to fix this, other than redraw the whole floor plans in Autocad. THanks.
  15. bumping this thread since I just found out about this app. http://www.bunkspeed.com/hypershot/index.html there's a pluggin for sketchup and rhino, it looks awesome, rendering on the fly, GI on your viewport while working in your model.
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