light bleed/reflection through closed corner

[sharanshankar]

The corner marked in this image is a closed corner but has light under it. I am not sure whether it is light bleeding through or some over reflection.

 

 

I used vray in 3dsmax to render this. there is only one light source in the scene, a vray dome light which uses a hdri sky image for lighting.

 

these are the settings i used:

 

image sampler

adaptive dmc with catmul rom

min subdiv 1, max subdivs 4

 

color mapping

hsv exponential with default values

sub-pixel mapping, clamp output, affect bg and linear workflow all checked

 

gi primary - irradiance map - 0.75 multiplier

very low preset with hsph subdivs at 50 and interp. samples at 20

least square fit interpolation and overlapping sample lookup

 

gi secondary - light cache - 0.6 multiplier

subdivs -1000

size - 0.2

 

dmc sampler

adaptive amount -0.85

noise threshold - 0.01

[CliveG]

Have you gone through a methodical process to establish what element is causing this?

 

Like render it with a grey over-ride material

 

Then render out with vray render elements (light, reflections, GI, specular, sample etc.) and check those to help isolate the issue.

[Chris MacDonald]

gi primary - irradiance map - 0.75 multiplier

very low preset with hsph subdivs at 50 and interp. samples at 20

least square fit interpolation and overlapping sample lookup

 

[rohitarora]

Hi buddy,first check your model if its fine...if that seems fine the try and follow what C G suggested,shall help you solve the issue.would also suggest you to render it with some higher level of light cache.

[sharanshankar]

thanks guys. but there is nothing wrong with the model. i checked it thoroughly.

 

as for trying to do a methodical troubleshoot, my max crashes every time i try to render it with an override material. not sure how to get around it. i tried it with another light source, vray sun from another angle. but that bright spot is not fixed in that.

 

but when i rendered that region alone with the vray dome light that spot is fixed but the region borders are visible.

 

@macker, that setting has worked well for me till now, as it always takes a lot more time when i use higher settings. and this is the first time i am came across this issue. maybe it might be fixed in higher qualities but that does not explain how it got fixed when i rendered the region alone.

 

i am really confused as to what the problem might be.

[Ismael]

http://forums.cgarchitect.com/72633-getting-some-light-splotches-high-render-settings-2.html

 

"Retrace threshold"

[sharanshankar]

hey thanks ismael. that did work. when i followed all the other suggestions in that post also.

[harryjohonalam]

Have you 1z0-027 brain dumps - testking.net ever been through some sort of organized process to determine precisely what aspect can be producing this particular?

Just like provide the item using a greyish over-ride product,,,After that provide out together with vray provide components (light, glare, GI, specular, test and so forth. ) along with look at those people to aid isolate the problem.