vray artifacts

[sean og]

Goes anyone know whats going on here?

I've save an irrad map, I thought the map need more info so I added incrementally for EVERY frame and I still get these weird blocks of color towards

the end of a 100 frame animation.

 

The second pass is light cache.

I'm also using an HDRI map in the environment and reflection slots

 

Thanks

[manta]

Does it flicker?

Do you have the preset to at least med/animation, on the IRR map ?

[sean og]

No it does not flicker...It's very constant on the frames

 

anybody? Chris Nichols? I used your DVD to set this up

[Christopher Nichols]

Did you look at your ir map in the irradiance map viewer? Generally that is very telling. Another thing that you can do is do is to fill in the missing spots by hand. So a render of a single frame of the area that is bad, and save that map. Then take the IR map that you did of the whole thing. Open it in the IR map viewer, and merge in the single frame. That should work for ya. There should be no need to do it on every frame.

[sean og]

Thanks Chris, I had been doing renders by hand and adding them to the map.

I never actually looked at them in the Iradmap viewer, when I did I realized that because I was using a VRAY plane, the map was being stretched out to infinity if I caught a glimpse of the horizon line. My information was so spread out, I had to keep zooming and zooming until I found what looked like my tiny object in the center. I replaced the vray plane with a normal plane and seem to be concentrating my map in the right areas,'

 

Thanks, Love the DVD's...Highly reccomend them to anybody using VRAY

[Christopher Nichols]

Glad I could help... Try a few more tests with this method, it may help you. Think of it like spay painting samples from the camera...

[sean og]

...still having problems, when I save incremental to current map, it renders

but does not add to the map? I have the correct map in the from file slot.

Also when I try to merge more than 2 maps (at med animation preset 40/40)

it crashes the map viewer? I don't seem to have a way of gathering a decent map of the animation.

 

any ideas?

[Christopher Nichols]

...still having problems, when I save incremental to current map, it renders

but does not add to the map? I have the correct map in the from file slot.

Also when I try to merge more than 2 maps (at med animation preset 40/40)

it crashes the map viewer? I don't seem to have a way of gathering a decent map of the animation.

 

any ideas?

 

Hmmmm... this one sounds like it may be a little more of an issue with your scene. Maybe ram issues or some other thing. I woud run it by the Vray guys.

[sean og]

Well. I had been using a vray plane as a ground/base, I switched this out to a max plane (though quite large, not reaching to infinity)

 

Now, I have made the plane even smaller and curved it to take up all the frame at all times during the animation. My problem was that the map had information spread accross the plane (not just what the camera saw) I don't know if this was because of the HDRI or reflections....but now i can merge many maps in the viewer.

 

Thanks for the help.

[Christopher Nichols]

Well. I had been using a vray plane as a ground/base, I switched this out to a max plane (though quite large, not reaching to infinity)

 

Now, I have made the plane even smaller and curved it to take up all the frame at all times during the animation. My problem was that the map had information spread accross the plane (not just what the camera saw) I don't know if this was because of the HDRI or reflections....but now i can merge many maps in the viewer.

 

Thanks for the help.

 

Still an interesting bug that I would address in the Vray forum under the "Problems" section. I am sure people would be interested in seeing this.