Weird Reflections

[ChooChoo]

Well, Ky pointed me in the right direction and I thought maybe I might have a handle on things a little. Then I rendered this out last night. I'm using vray with max9. There are 2 vray lights. One to the left and right of the house. There is no environment map, but GI & reflection are on (1.0 & 0.8). Obviously everything is white except the front door (and no, that's not the final material lol, I know, it's bad)

 

I can't tell if it's the material, or lighting, or reflections, or....? I don't know what the weird stuff is all over the ground and on the building itself. It's definitely NOT supposed to be there. I've got some reflection going on over the front door.

 

I can see already though that I've got some settings mixed up, but I didn't know if these would cause what I've got in the picture before I go and tweak all the numbers just to find out it's my materials or something.

 

Ant help would be greatfully appreciated.

 

Thanks

 

http://whittendesigns.com/pics/cape%20low.png

[martin walker]

looks like you are using a pre-calculated irradiance map thats incorrect for your current scene

[ChooChoo]

OK, so I started going nuts. I deleted one vray light, then the next. Turned off GI and refl. Nothing. I figured maybe window glass. Nope. Front door? Fascia material? Nope, nope. Checked the complete list for any foreign object. Tweaked all the settings to minimal. I was going ape#&*%!. WTF is going on??? I selected all and moved the whole damn building and this is what I find underneath my house!

 

It is resting on just a plain ol' box. No modifiers, 1 segment all around. Did nothing to it. This is at 0,0. WTH is that????

[ChooChoo]

hmm, not sure what that is, I'm just a noob. I don't think I have one loaded if that makes sense. I see where it says "mode from file" but there's nothing there.

 

Thanks for the response back. I'll play around with it a little more.

[Tommy L]

You could always move the house over the splodge? Or model a carpet to sweep it under?

Yes, the correct answer is that you are using an invalid irradience map. The Mode needs to be set to 'single frame' unless this is for an animation. Im not that familiar with vray1.5, Im used to 1.46, but im fairly sure thats the solution.

[dinhtuan]

Yes! I think Martin and Tom give you correct answer about calculate Mode of IRmap

[ChooChoo]

thanks everyone for the replies.

 

yeah, I just deleted the box, then made a plane instead and got rid of it. Just odd what that was.

 

changed the setting for the irradiance map, I thought that may have been off. I honestly don't know where that changed because I hadn't touched it (at least not that I know of)

 

dinhtuan, I did that from a previous tutorial. they said to set it at that. I usually don't. I usually have it like you said, but I notice noise now for some reason and that setting fixed it. gah!, I'm such a noob at this.

[dinhtuan]

It's right for previous Vray version but you're using RC3 now and in the Manual they wrote:

In previous V-Ray versions, increasing the Max subdivs parameter could lead to increased noise in the renderings when using direct GI evaluation, blurry reflections, area lights etc. This was extremely obvious when using the "universal settings" scenario. To compensate for this effect, a lower Noise threshold for the rQMC sampler was required.

 

This is now corrected and increasing the Max subdivs for the Adaptive rQMC image sampler keeps the same noise level without modifications to the Noise threshold. This should be kept in mind when working with older scenes where the Noise threshold was reduced - they might render slower, although the noise level will be much less. To reduce the render times again, you should increase the Noise threshold or override it by unchecking the Use rQMC sampler thresh. option in the Adaptive rQMC image sampler rollout.