Andrew1 Posted November 1, 2012 Share Posted November 1, 2012 (edited) Hey guys, I am working on a project - an interior sign, I got a clear acrylic backer ( box ) at 3/4" thickness with cutout letters over the backer I am showing the sign on the interior flipped box imitating the walls etc... I got a couple of vray lights set up , my box material has vray mat with 100% refraction enabled diffuse white etc a glass imitation sort of..., I get the nice shadow coming on the wall however its way to strong..., how would i doll down the shadows, refraction rollout has a check on affect shadows, checking and unchecking this option does not make too much of a difference.... rendering method irr map and lc any help would be appreciated... Edited November 1, 2012 by Andrew1 Link to comment Share on other sites More sharing options...
Andrew1 Posted November 1, 2012 Author Share Posted November 1, 2012 spent 3 hours testing..., can not come up with a solution... 100 refractive transparent objects in real life do not cast shadows except for the edges... whats going on with the vray material... I excluded the object in light property from casting shadow , however the gi solution still casts brutal shadow.... anyone ? thanks, Andrew Link to comment Share on other sites More sharing options...
Corey Beaulieu Posted November 1, 2012 Share Posted November 1, 2012 Maybe give us a screen shot or test render so we understand the scenario you are working with. Softening shadows can be done by increasing the size of the sun and increasing the subdivisions with it. You can also just render a shadow pass and remove some of the intensity of the shadow in post. Link to comment Share on other sites More sharing options...
Andrew1 Posted November 1, 2012 Author Share Posted November 1, 2012 (edited) this is an interior scene... it is the gi that is causing the problem.... and there is no control to tone it down..., I went to object vray property and turned the gi off of the object... it looks better the brutal dark shadow is gone, but gone completely... I do want a bit of a shadow accent there though.... I will post a shot in a few minutes This is driving me crazy... I am usually pretty good at figuring stuff out on my own Just wanna add that this is rendered using ir/lc method and the render below is a straight render, thisis what I get with 100% refractive material with affect shadows on.... Edited November 1, 2012 by Andrew1 Link to comment Share on other sites More sharing options...
Corey Beaulieu Posted November 1, 2012 Share Posted November 1, 2012 hmm.. Do you have AO on in your render settings? What are your refraction settings? 255? with a fully black diffuse color? Are you using Fog in your material? These are my first few thoughts. Link to comment Share on other sites More sharing options...
Andrew1 Posted November 1, 2012 Author Share Posted November 1, 2012 refraction is pure white 255 , no fog, no translucency, no reflections Link to comment Share on other sites More sharing options...
Ismael Posted November 2, 2012 Share Posted November 2, 2012 Make a plain box the size of the sign, no-text, nothing else. Give it your glass material and if all is well then let us know what you think it could be. Link to comment Share on other sites More sharing options...
Ricardo Eloy Posted November 2, 2012 Share Posted November 2, 2012 Try excluding the glass object from any GI calcs (VRay Properties > Receive GI/ Generate GI/Visible to GI). If this shadow is produced by GI, you'll likely get rid of it. Link to comment Share on other sites More sharing options...
landrvr1 Posted November 3, 2012 Share Posted November 3, 2012 Can you post a shot of how it was coming out originally? Also, is that supposed to be the color of the glass? Sort of a smokey gray? Or is that a result of turning off the GI? One trick you can try is go to your color mapping section under the V-Ray tab and try a 0.1, 0.2, or 0.3 in the dark multiplier, That will immediately reduce the darkness of shadows...... Link to comment Share on other sites More sharing options...
Andrew1 Posted November 4, 2012 Author Share Posted November 4, 2012 (edited) thanks guys for all the replies. I just resolved the problem... I had unchecked in GI Caustics refractive check mark..., after enabling the option I got the result that I was looking for.. looks great now , I will post a pic shortly.. Edited November 4, 2012 by Andrew1 Link to comment Share on other sites More sharing options...
landrvr1 Posted November 5, 2012 Share Posted November 5, 2012 lol, excellent. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now