psyanide Posted August 27, 2003 Share Posted August 27, 2003 I use AutoCAD at the moment to model and Accurender to render, but we want to use RTRE, so I have a trial of VIZ4 (9 days left). I've imported a DWG model and it's came in better than expected, but I can't find anything in the help about lights. I've put some in and calculated a radiosity solution, but it's not doing anything. The light is affecting the space just as if I'm not using radiosity. Any ideas what's going on? TIA Link to comment Share on other sites More sharing options...
psyanide Posted August 27, 2003 Author Share Posted August 27, 2003 OK, I modelled in mm, but VIZ's default is inches. I clicked the units tab to mm, but still nothing. Then I turned the lights up 25x what they were, but the radiosity render doesn't look like it has radiosity. Could the mm/inches thing be causing the problem? Link to comment Share on other sites More sharing options...
Craig Ramsay Posted August 27, 2003 Share Posted August 27, 2003 Yep thats your problem! With photometric lights it is vital that your model is using correct units. Try seting up a new scene, change the system units and display units to millimeters and then import the file again... your lights should now be working with a model that is scaled correctly so they should now show up in the render. Craig Link to comment Share on other sites More sharing options...
psyanide Posted August 27, 2003 Author Share Posted August 27, 2003 Thanks, I'll give that a go. Link to comment Share on other sites More sharing options...
Fran Posted August 27, 2003 Share Posted August 27, 2003 Originally posted by psyanide: OK, I modelled in mm, but VIZ's default is inches. I clicked the units tab to mm, but still nothing. Then I turned the lights up 25x what they were, but the radiosity render doesn't look like it has radiosity. Could the mm/inches thing be causing the problem? Hi Sam, If you leave the Scene Unit Scale at inches and have Display Unit Scale set to Metric and millimeters, you can check the size of an object to make sure the size of the model is physically correct. There is a Measure Distance command under the Tools menu. If the object measures as expected, I would leave Scene Units at inches. Are you using Exposure Control? Make sure it is enabled, preferably Logarithmic. Also, I don't think Standard lights work very well with radiosity. Try photometric if you aren't already. And make sure "Use Radiosity" is enabled in the render settings dialog. Let us know what happens - we'll try to get you going. Link to comment Share on other sites More sharing options...
Craig Ramsay Posted August 27, 2003 Share Posted August 27, 2003 I tested this the other day with an autocad drawing drawn in millimeters and it will not import to the correct scale unless the system units are in millimeters... trust me I know nothing Craig Link to comment Share on other sites More sharing options...
psyanide Posted August 27, 2003 Author Share Posted August 27, 2003 Right, I tried it again and still nothing. Just to confirm, system units is under "customise" "units setup..." ? Link to comment Share on other sites More sharing options...
Craig Ramsay Posted August 27, 2003 Share Posted August 27, 2003 Sort of... that will open up the units setup box, when you open that click on the System Unit Setup button then make sure 1 Unit = 1.0 Millimeters I use Max so this might be slightly different Link to comment Share on other sites More sharing options...
psyanide Posted August 27, 2003 Author Share Posted August 27, 2003 Logarithmic Exposure Control: check Display Radiosity in Viewport: check Photometric Lights (as spots): check Ignition failure, Huston, we have a problem. (Sorry, don't know where that came from ) Link to comment Share on other sites More sharing options...
Craig Ramsay Posted August 27, 2003 Share Posted August 27, 2003 Your system units and display units were set to mm BEFORE you imported the model? Link to comment Share on other sites More sharing options...
psyanide Posted August 27, 2003 Author Share Posted August 27, 2003 Yes, I think I will exit out of VIZ, and restart the program. Link to comment Share on other sites More sharing options...
psyanide Posted August 27, 2003 Author Share Posted August 27, 2003 Right, did that (restarted VIZ). "Units Setup" "1 unit= 1.0 Millimeters" "Metric" ticked "Millimeters" selected "Lighting Units: International" Link to comment Share on other sites More sharing options...
Craig Ramsay Posted August 27, 2003 Share Posted August 27, 2003 Yep correct so what is happening now? Link to comment Share on other sites More sharing options...
psyanide Posted August 27, 2003 Author Share Posted August 27, 2003 Imported model. Insert lights, photometric, target point. In the camera view, the effects are appearing. IT WORKS! IT WORKS! Link to comment Share on other sites More sharing options...
psyanide Posted August 27, 2003 Author Share Posted August 27, 2003 Ah. I know what happened. I selected the light and changed the distribution to spotlight. That seems to stop it working. Link to comment Share on other sites More sharing options...
Craig Ramsay Posted August 27, 2003 Share Posted August 27, 2003 It shouldn't :???: Sam I have sent you a PM Link to comment Share on other sites More sharing options...
psyanide Posted August 27, 2003 Author Share Posted August 27, 2003 Is it possible that faces could be pointing the wrong way for radiosity even with force 2 sided ticked? Anyway, thanks a lot for the assistance Craig and Fran. I was about to go in a huff with my computer, and fling my teddy out the pram. Link to comment Share on other sites More sharing options...
Craig Ramsay Posted August 27, 2003 Share Posted August 27, 2003 Nope. If you have 2 sided checked then radiosity will work. Craig Link to comment Share on other sites More sharing options...
Fran Posted August 27, 2003 Share Posted August 27, 2003 Originally posted by Craig Ramsay: I tested this the other day with an autocad drawing drawn in millimeters and it will not import to the correct scale unless the system units are in millimeters... trust me I know nothing Craig Hi Craig, Hmmm. I just imported a 400 mil. box into a scene with Scene Unit Scale set to Inches and Display Unit Scale set to mm. It measured 400 mil. Maybe Viz is different from Max? Curiouser and curioser. :???: Trust me, I know nothing too. Link to comment Share on other sites More sharing options...
psyanide Posted September 2, 2003 Author Share Posted September 2, 2003 3 days to go. I've been trying to animate a material, and VIZ just won't do it. Is this one of the features only present in MAX? VIZ also doesn't seem capable of animating phase. Link to comment Share on other sites More sharing options...
Craig Ramsay Posted September 3, 2003 Share Posted September 3, 2003 Yep you need max to animate all that sort of thing as viz is a sort cut down version of max with most some animation stuff taken out. Did you get a quote for max? Craig Link to comment Share on other sites More sharing options...
Craig Ramsay Posted September 3, 2003 Share Posted September 3, 2003 Fran are you using Viz and is your autocad was your autocad drawing drawn in millimeters? Craig Link to comment Share on other sites More sharing options...
psyanide Posted September 3, 2003 Author Share Posted September 3, 2003 Yes I got a couple of quotes. The company we bought our AutoCAD licenses off of doesn't seem to want to sell us anything though, either that or they are a useless bunch of gits. Link to comment Share on other sites More sharing options...
psyanide Posted September 3, 2003 Author Share Posted September 3, 2003 Bet they are reading this. Link to comment Share on other sites More sharing options...
Fran Posted September 3, 2003 Share Posted September 3, 2003 Originally posted by Craig Ramsay: Fran are you using Viz and is your autocad was your autocad drawing drawn in millimeters? Sorry Craig. I'm using VIZ. I model with Rhino, and am so used to using Power Translators that I didn't realize it auto-converts. When I tried every other file format, the same box measured 10160 mm. This is why I recommend to people to measure an object of known size to see if they have a units issue. Link to comment Share on other sites More sharing options...
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