darrenchang Posted December 11, 2006 Share Posted December 11, 2006 Hi, I'm new to Vray. Trying to render exterior views for my project. The windows that uses Vray glass appear to be very reflective, almost like mirrors. I wouldlike to reduce the reflectiveness so the interior of the building will be visible through the windows. Does anyone knows how to do it? I am using Fresnel reflections, no mapping. The interior of the building is relatively dark. Link to comment Share on other sites More sharing options...
manta Posted December 11, 2006 Share Posted December 11, 2006 just bring the reflective color more towards black... Link to comment Share on other sites More sharing options...
darrenchang Posted December 11, 2006 Author Share Posted December 11, 2006 I just tried to bring the reflect color toward black. but it didn't work... an image of the rendering is posted here: Link to comment Share on other sites More sharing options...
manta Posted December 11, 2006 Share Posted December 11, 2006 Ok, just start over...create a vray material...give it a white color...bring the refraction to white to make it compltetly transparent...bring the reflection to dark gray...adjust that color accordingly, darker is less reflective... Link to comment Share on other sites More sharing options...
redzuan3828 Posted December 11, 2006 Share Posted December 11, 2006 i hope u know how to setup exterior scene i just skip on it i had facing this problem before even my setting is correct. The interior of the building is relatively dark. the interior of the building is dark because no light come in. so to solve the problem all internal floor must assign VRayLightMtl i usually use light yellow. hope it usefull Link to comment Share on other sites More sharing options...
darrenchang Posted December 11, 2006 Author Share Posted December 11, 2006 I just created a new vray material with dark gray reflection color and white refraction color. but it is still more like a mirror than glass. the settings i used are: Reflection: - Reflection color: 54,54,54 - Hilight glossiness: 1.0 - Refl. glossiness: 1.0 - Subdivs: 8 - Use interpolation: unchecked - Fresnel reflections: checked - Fresnel IOR: 1.6 - Max depth:5 - Exit color: 0,0,0 Refraction: - Refract: 255,255,255 - Glossiness: 1.0 - Subdivs: 8 - Use interpolation: unchecked - Affect shadows: unchecked - Affect alpha: unchecked - IOR: 1.6 - Max depth: 5 - Exit color: unchecked - fog color: 255,255,255 - Fog multiplier: 1.0 - Fog bias: 0.0 What didi I do wrong? Link to comment Share on other sites More sharing options...
manta Posted December 11, 2006 Share Posted December 11, 2006 If you change the reflection color to black, what happens then ? Link to comment Share on other sites More sharing options...
Nic H Posted December 11, 2006 Share Posted December 11, 2006 your glass isnt a single face is it? if it is give it 10mm thickness with a shell modifier, then see if it works? otherwise, uncheck fresnel and put a falloff map set to fresnel in reflect slot, then adjust teh white point to a mid grey - more control over checkbox. Link to comment Share on other sites More sharing options...
darrenchang Posted December 11, 2006 Author Share Posted December 11, 2006 It improved after changing reflection color to black. But now it looks a little bit weird. Half of the window is reflecting and the other half is refracing. Seems the refraction IOR and reflection IOR also have effect. What values should I use? Link to comment Share on other sites More sharing options...
manta Posted December 11, 2006 Share Posted December 11, 2006 Thats very odd, since it shouldn't be reflecting at all, when you set it to black you're telling it that you don't want any reflection.... Link to comment Share on other sites More sharing options...
The_architect06 Posted December 11, 2006 Share Posted December 11, 2006 yeah..i face this problem a lot in exterior scenes,i even sometimes have reflective walls when they have grey concrete & the reflective is pure black Link to comment Share on other sites More sharing options...
Nic H Posted December 11, 2006 Share Posted December 11, 2006 looks like your geomerty is crappy? put some lights in and a strong environment multiplier. weird indeed. Link to comment Share on other sites More sharing options...
darrenchang Posted December 11, 2006 Author Share Posted December 11, 2006 This is what I got by setting Fresenel IOR to 0.6 and Refraction IOR to 1.0. Still improving Link to comment Share on other sites More sharing options...
eksg Posted December 11, 2006 Share Posted December 11, 2006 Check affect shadows to have your interiors to be seen. Link to comment Share on other sites More sharing options...
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