godchi86 Posted June 20, 2007 Share Posted June 20, 2007 Hi, Im quite new to vray and i am having trouble with some lighting! I have inserted photometric lights with IES files attached into my scene to represent some spotlights, which worked fine, but when i render the source of the light does not show! So my scene appears to have lights inside but its not possible to see where they are coming from! Is there something i could have missed or something i can do to show this? Any help would be greatly appreciated. Cheers, Richie. Link to comment Share on other sites More sharing options...
jophus14 Posted June 21, 2007 Share Posted June 21, 2007 You won't actually see the IES "light bulb" in the render. I usually use a VrayLightmap for my bulb and then the IES file and my lighting. Link to comment Share on other sites More sharing options...
Ricardo Eloy Posted June 21, 2007 Share Posted June 21, 2007 The reason you can't see a photometric lightsource (or a standard light source for that matter) is because they are simply points, not actual objects. As points, they don't have area, so you can't see them. That doesn't happen to VRay lights because they do have area, so you have something to see. Link to comment Share on other sites More sharing options...
godchi86 Posted June 21, 2007 Author Share Posted June 21, 2007 Cheers for the info! So what would you recommend in terms of showing the light source and giving realistic lighting spread in my scene? Im currently rendering a scene and the estimation time is at like 20 HOURS! Is this normal and are there any ways to speed it up? Thanks. Link to comment Share on other sites More sharing options...
jophus14 Posted June 21, 2007 Share Posted June 21, 2007 I would not recommend putting too many IES lights in your scene. It's a killer when it comes to rendertimes. I usually use IES lights when the fixture is close to something where the light spread will be seen like a wall for instance. If it's the middle of a room I'd go with photometric spotlights or Vray lights. To have the bulb show up in your scene, just put a VrayLight material on your bulb. Link to comment Share on other sites More sharing options...
godchi86 Posted June 21, 2007 Author Share Posted June 21, 2007 Nice 1, Thanks alot! Link to comment Share on other sites More sharing options...
BrianKitts Posted June 21, 2007 Share Posted June 21, 2007 I would not recommend putting too many IES lights in your scene. It's a killer when it comes to rendertimes. I'm gonna have to disagree with you on that one..... I use nothing but IES lights in scenes.... I've never noticed a hit on render times worth worrying about.... I've found that if you have trouble on render times with vray it's most likely your render settings.... not the lights. I just finished a night rendering that has over 130 IES lights, and at 3000 pixels wide rendering in just over an hour and a half. Link to comment Share on other sites More sharing options...
Ricardo Eloy Posted June 21, 2007 Share Posted June 21, 2007 I guess it depends on the IES map you use. The more complicated the map, the longer it takes. Link to comment Share on other sites More sharing options...
aaron-cds Posted June 21, 2007 Share Posted June 21, 2007 There seems to be a significant increase in render time when you have shadows enabled for the ies lights. Link to comment Share on other sites More sharing options...
jophus14 Posted June 25, 2007 Share Posted June 25, 2007 I generally use the same IES map if it's that same style of fixture. The night exterior image looks really nice BTW. Link to comment Share on other sites More sharing options...
godchi86 Posted June 25, 2007 Author Share Posted June 25, 2007 I'm gonna have to disagree with you on that one..... I use nothing but IES lights in scenes.... I've never noticed a hit on render times worth worrying about.... I've found that if you have trouble on render times with vray it's most likely your render settings.... not the lights. I just finished a night rendering that has over 130 IES lights, and at 3000 pixels wide rendering in just over an hour and a half. So the outdoor image you posted only took an hour and half to render at a huge size? I really must be doing something wrong!?!? The render i have attached is rubbish and has a very low resolution and it took about an hour to render! This thing is confusing me alot! The image is of a bar interior. Do you guys have very high spec computers? Help is definatly requiered! Richie Link to comment Share on other sites More sharing options...
BrianKitts Posted June 25, 2007 Share Posted June 25, 2007 my machine has two dual-cores.... it's decent, but comparatively speaking it's not a monster....(it's no mac 8core ) I most likely your materials or render settings are to blame. You may want to try a post of your settings for critique. Link to comment Share on other sites More sharing options...
godchi86 Posted June 26, 2007 Author Share Posted June 26, 2007 I most likely your materials or render settings are to blame. You may want to try a post of your settings for critique. Iv attached my settings, if you could take a look and tell me where im going wrong that would be great! In the scene itself i am using materials i aquiered from evermotion, none of them are too complex i dont think. There is quite alot of glass in the scene does this effect the rendertimes? Any changes or tips would be greatly appreciated! Thanks. Link to comment Share on other sites More sharing options...
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