Michael Pickard Posted July 27, 2016 Share Posted July 27, 2016 Hi there I am creating an interior scene of a joint living room/dining room. I have a few windows and doors as well as a skylight but am having a problem with the sun creating really strong bright rays on the ground and the wall when it is coming through the windows, which seem out of place and don't seem to blend in well. Currently i have the vray sun set too: Intensity - 1.0 Size - 5.0 Everything else is default. I have attached a render to show you what i mean. Any advice on how to reduce the strength of those rays to give it a more realistic look would be great. Many thanks Michael Link to comment Share on other sites More sharing options...
simonm Posted July 27, 2016 Share Posted July 27, 2016 Yes - put vray sky portals on the INSIDE of the windows and set them to SIMPLE. Lower the intensity of the sun to around .55 (youll have to play with that) Then, I would use reinhard as the colour mapping between 0.1 - 0.3 That should give you a solid base Hi there I am creating an interior scene of a joint living room/dining room. I have a few windows and doors as well as a skylight but am having a problem with the sun creating really strong bright rays on the ground and the wall when it is coming through the windows, which seem out of place and don't seem to blend in well. Currently i have the vray sun set too: Intensity - 1.0 Size - 5.0 Everything else is default. I have attached a render to show you what i mean. Any advice on how to reduce the strength of those rays to give it a more realistic look would be great. Many thanks Michael Link to comment Share on other sites More sharing options...
Michael Pickard Posted July 27, 2016 Author Share Posted July 27, 2016 I put sky portals in front of the windows but it still seems to give quite sharp lighting. The first image is with an intensity of 1.0 The second image is with an intensity of .55 I kept the color mapping with exponential because it seemed to spread the light out a lot more. Would moving the sun have an effect. As you can see from the scene images sunlight rays are going to come in from at least one angle? Any other ideas? I've also attached some screenshots of the scene as well. Link to comment Share on other sites More sharing options...
simonm Posted July 27, 2016 Share Posted July 27, 2016 lower it even more.... dont be shy to go to 0.1 or lower.... show me your color mapping settings in the setup I put sky portals in front of the windows but it still seems to give quite sharp lighting. The first image is with an intensity of 1.0 The second image is with an intensity of .55 I kept the color mapping with exponential because it seemed to spread the light out a lot more. Would moving the sun have an effect. As you can see from the scene images sunlight rays are going to come in from at least one angle? Any other ideas? I've also attached some screenshots of the scene as well. Link to comment Share on other sites More sharing options...
simonm Posted July 27, 2016 Share Posted July 27, 2016 i also see 2 portals on the outside... put them inside and set to simple Link to comment Share on other sites More sharing options...
Michael Pickard Posted July 27, 2016 Author Share Posted July 27, 2016 Attached are the color mapping settings. Link to comment Share on other sites More sharing options...
simonm Posted July 27, 2016 Share Posted July 27, 2016 ok sounds silly, but can you try changing to reinhard and put 0.1 in 'burn value' vray plays funny buggers with me at times.... so try that Link to comment Share on other sites More sharing options...
Michael Pickard Posted July 27, 2016 Author Share Posted July 27, 2016 This is with the burn value 0.1 and intensity of .55 It seems to work if i decrease the multiplayer to less than 0.1. Problem i have then is the scene seems to be a lot colder but can probably adjust that in post. Link to comment Share on other sites More sharing options...
simonm Posted July 27, 2016 Share Posted July 27, 2016 that looks better - just change your white balance on camera. Put a white sphere in middle of room and set colour to 255. Do a quick render and then go to camera settings and do custom color balance and color pick the ball (try and pick the most common diffuse colour on it if that makes sense) and then drop the whiteness value about 20%. It could also be your scene units. Are they correct? This is with the burn value 0.1 and intensity of .55 It seems to work if i decrease the multiplayer to less than 0.1. Problem i have then is the scene seems to be a lot colder but can probably adjust that in post. Link to comment Share on other sites More sharing options...
Michael Pickard Posted July 27, 2016 Author Share Posted July 27, 2016 My scene units are mm, and everything is set to scale i believe. Shall i leave it with reinhard 0.1 burn then? And i can just reduce the intensity of the sun to reduce the outline of the sun rays? Thanks so much for your help Link to comment Share on other sites More sharing options...
simonm Posted July 27, 2016 Share Posted July 27, 2016 just check that your building is the right size (ie that the heights of the room are right, ie 3000mm not 300mm) - if its out of scale it will cause you problems. Yes, with skyportals, you dont even need the sun on. You can leave it off to simulate an overcast'ish condition. so if you leave it on 0.1 or even lower - it will be fine. NOW - you must do tests in colour because it will be different when you use solid textures. Link to comment Share on other sites More sharing options...
Michael Pickard Posted July 27, 2016 Author Share Posted July 27, 2016 Yep, 100% all built to scale. Your genius, thanks for your help. Link to comment Share on other sites More sharing options...
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