danteprojetos Posted July 18, 2005 Share Posted July 18, 2005 Hello to everyone .. I've already used vray a lot for interiors, but this is my first attempt for a exterior shot.. I found it to be much more difficult to set up lights, etc... After reading A LOT in forums all over the net, I've pinpointed my best results to this settings... I hope anyone could help me improve it, as I am not satisfied whith the lighting at all ! The settings The images are attached In all the images attached I used linear mapping, dark 0.8, bright 1.0.. I read in a lot of places that for exteriors hsv exponential is Ideal, but whenever i use it, I get this awful results: What am i doing wrong Sorry for the long post, and thanks in advance!!!! Link to comment Share on other sites More sharing options...
Msamir Posted July 18, 2005 Share Posted July 18, 2005 I like the grass how did you do it ? Link to comment Share on other sites More sharing options...
kris Posted July 18, 2005 Share Posted July 18, 2005 Try using autolevels in Photoshop. I think that will give some life to your renders. Link to comment Share on other sites More sharing options...
danteprojetos Posted July 18, 2005 Author Share Posted July 18, 2005 Raven Woords -> I used a grass map and vraydisplacement with a 4cm amount. The texture map and displacement map are attached. Kris -> Nice point, I will try to do that. But i still think there must be something wrong with my settings. Heeeelp ! Thanks! Link to comment Share on other sites More sharing options...
JamesTaylor Posted July 19, 2005 Share Posted July 19, 2005 first thought is that you have logarithmic exposure control turned on in the environment panel (max's environment, not the environment panel in the vray render dialog box) i think this is making your scene appear washed out and over exposed. unfortunately viz defaults to having this turned on? give it a go, see what happens, i might be wrong! Link to comment Share on other sites More sharing options...
shan Posted July 19, 2005 Share Posted July 19, 2005 yeah james is right. if that's the issue, if u turn it off you would get a better rendering. shan Link to comment Share on other sites More sharing options...
Tommy L Posted July 19, 2005 Share Posted July 19, 2005 Parking on the lawn?? Link to comment Share on other sites More sharing options...
skogskalle Posted July 19, 2005 Share Posted July 19, 2005 looks like youre using speedtree trees... there have been some issues with Vray and speedtree in the past. probably not related to the overexposion in your images, but you never know... Link to comment Share on other sites More sharing options...
dnaranjo Posted July 19, 2005 Share Posted July 19, 2005 Hi I am sorry I have not worked with VRay a lot, so I cannot help you with that. But I am going to tell you something that I believe can be improved on your scene. The swiming pool looks to cold, try to give it a lighter blue color. I also think the water movement is to strong. Hope I can help you more next time Daniel Naranjo Link to comment Share on other sites More sharing options...
ecastillor Posted July 19, 2005 Share Posted July 19, 2005 first thought is that you have logarithmic exposure control turned on in the environment panel (max's environment, not the environment panel in the vray render dialog box) i think this is making your scene appear washed out and over exposed. unfortunately viz defaults to having this turned on? give it a go, see what happens, i might be wrong! I think vray ignores max enviroment when you check override max's enviroment Link to comment Share on other sites More sharing options...
JamesTaylor Posted July 19, 2005 Share Posted July 19, 2005 it does, but it still takes into account the exposure control element Link to comment Share on other sites More sharing options...
Island J Posted July 19, 2005 Share Posted July 19, 2005 The cars appear to be RPCs. If so you need to check the eye level viewing box under the modify tab for them to look right. I don't know whats goin on with the lighting but try deleting all the lights you have in the model. Then render. It should be dark. Turn on the skylighting in the vray render panel (override max's). Mess with 1.0, 2.0, 0.5 that sort of thing until you have just enough light to see stuff. Make sure that there is a HINT of blue in the skylight colour. Turn all the textures to a light/ medium gray default material and then work your way from there. Then add a light for your sun and scale back the intensity from 1.0 as necessary. Don't add too much yellow to the light (sun). Hope this helps. Link to comment Share on other sites More sharing options...
Fausto Posted July 19, 2005 Share Posted July 19, 2005 i think exterior is much more simple compared to interior! you need only one direct light for sun. about settings: - the multiplier of prim bounce to 1. you don'need 1,25 - calc the irrmap with AA fixed, no reflections - turn on enviroment in vray - mult as needed: start with no sun, only enviroment, and rise mult as you get the right amount of light; then turn on the direct light and calc GI. - for final img turn on AA and reflections and reuse the irrmap. p.s. remember to undersample irrmap in relation to final image resolution hope this help :-) Link to comment Share on other sites More sharing options...
danteprojetos Posted July 19, 2005 Author Share Posted July 19, 2005 I feel like I just read 10 tutorials.. Man.. !! Thanks for the help ! jat10005 , You are absolutely right!! I would never pay attention to that. I turned logarithmic exposure control off and the HSV exponential worked right! Thanks! I fell like i have to learn the settings all over again ! Thanks a lot!!! shan, I really did!! Thanks! Tommy L, hehehe, I was so worried with the lighting that I didn't even notice that!! Gonna fix it in the update! Thanks! skogskalle , It really did with earlier versions. With the one I'm using, 1.47.03, speedtree is not so troublesome anymore. Altough it consumes a lot of memory. I think I will exchange to xfrog it seems to be much better. Thanks! dnaranjo, Any, kind of help is appreciated, and your input on my scene made me see something that wasn't quite right. It really is too dark for a pool. I made a lot of movement in the water because there is a waterfall in the left, but looking at it right now it's really big! Thanks, i will change that! Island J, I didn't knew that this option existed in rpcs, it's great to know that! Now that i read your method of lighting a scene, I see how much mine is wrong! I light the entire scene with all the lights and THEN i render it! In the way you do it you have another level of control.. I will try to do it this way! Thanks a lot!! Fausto, Thanks for the tips ! I will use them all and try to make a better image!! Thanks so much for all the help. This thread is being VERY helpful to me! I will post some updates as soon!! Link to comment Share on other sites More sharing options...
danteprojetos Posted July 21, 2005 Author Share Posted July 21, 2005 I did an update of the first view this afternoon. C&C are very very welcome! Thanks! Link to comment Share on other sites More sharing options...
ecastillor Posted July 21, 2005 Share Posted July 21, 2005 looks much better....im a bit worried about those cars in the lawn, but what the heck Link to comment Share on other sites More sharing options...
Tommy L Posted July 21, 2005 Share Posted July 21, 2005 Hmmm... looks suspiciously like youve still got exposure control turned on and the cars are still parking on the fairly pristine lawn..... Link to comment Share on other sites More sharing options...
danteprojetos Posted July 21, 2005 Author Share Posted July 21, 2005 I forgot that on the last update.. I guess I'm in desperate need for some sleep .. The client wanted me to change the colors, So i finally did the parking right!! Thanks again for the reminder! And thanks again for the incredible help you all given me! I know I have A LOT to improve but at least i'm on the right track now. Link to comment Share on other sites More sharing options...
ecastillor Posted July 21, 2005 Share Posted July 21, 2005 like the second on best...i always like it better when the sun is coming from one side or from behind.... it must be uncomortable for that dude to sit on the rock like that....give him a towel or something! Link to comment Share on other sites More sharing options...
danteprojetos Posted July 23, 2005 Author Share Posted July 23, 2005 Did a update I changed the cars to 3d models and the wood texture. And made one with the sun coming from the side on the front view. Thanks! Link to comment Share on other sites More sharing options...
Ricardo Eloy Posted July 23, 2005 Share Posted July 23, 2005 Hi, Dante! I would not use those cars either. They are pretty fancy, which takes the attention from the house (not to mention that they have the same plates and the models look weird). IMO, you should focus on thew house, add more details to it like in the windows, door frames, railing... Link to comment Share on other sites More sharing options...
oyie Posted July 23, 2005 Share Posted July 23, 2005 use i direct light as your main source, for color mapping always used hsv exponential, or exponential for exterior, adjust your dark multiplier when you get a darker output. check overrides max environment and adjust the color a bit brighter , hope this helps Link to comment Share on other sites More sharing options...
danteprojetos Posted July 24, 2005 Author Share Posted July 24, 2005 Rick, Thanks for the critics.. When I saw that the plates where the same, I almost killed myself.. It's amazing how sometimes you can't see these little mistakes in your scene .. I think i will drop the 3d cars, and focus on the house geometry overall! Thanks!!! Oyie, I think my shadows didn't get enough contrast because I used HSV exponential. Next time I will try exponential and I will try your other sugestions to see how it looks. Thanks ! Link to comment Share on other sites More sharing options...
maxit Posted July 24, 2005 Share Posted July 24, 2005 Dante, On your last image, are the white trousers in the balcony somebody's reflection? You are making a good progress. I love the Vray community. Link to comment Share on other sites More sharing options...
Tim Saunders Posted July 26, 2005 Share Posted July 26, 2005 good improvements. your curved glass is not quite believable. if you are going to have that strong of a refraction, you need to decrease the reflection a bit so we can at least see the real legs of the people through the transperancy of the glass. Link to comment Share on other sites More sharing options...
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