Rendering : Reflection turns out transparent

[AJ]

I'm sorry, but I can't quite figure out what you mean.

When you say the object becomes 'see through' - could you be a little clearer? Do you have any example renders?

[yfx]

near the back the model becomes transparent even tho the material has no transparency. 2nd pic just shows that I've covered the whole back area and yet the reflection still make it look like the car's transparent

any help would be great...thx

[Dave Black]

Can you briefly explain your material setup?

Is it a raytrace material? Is it a standard material with a raytrace map?

It's possible that the reflection map is somehow set to screen or something wierd like that.

Give us a bit more info, as I'm sure it's a simple fix.

3DZ

:D

[Goldeneye]

I've had the same experience. I believe the problem is because of the environment map. The reflection is actually correct and it lines up perfectly with what is behind or something to that effect. Try putting an object behind the camera so it reflects in the car to see where the image on the car is coming from. It doesn't really make sense that this would happen but I think it's that, and not the material becoming transparent.

[yfx]

The material is the brazil car paint material. But the problem's universal, I've tried w/ standard raytrace w/ standard lights, same effect. The problem isn't too hard to duplicate.

It works okay if the background picture is very faint in color, but that is extremely limiting.

[yfx]

sorry...didn't read the 2nd post. I don't think it's the material becoming transparent, but rather the way it's reflecting make it look the material is transparent..that's my hunch at least. I know couple other people stymied by the same problem.

As I said, this is the standard brazil car paint. But i've also tried w/ normal reflection, fresnel reflection, the effect is the same. Very strange.

[marcusss]

Like the zealed zealot said, I believe it has to do with the background map setting. It happened once to me, and this was the problem.

If it does'nt work, put the image on a plane, and this will solve the problem.

Mark'huss

[ZeBoxx]

It's because your environment background projection system has been set to 'Screen' - the rays reflecting off the car wouldn't have any 'real' background to reflect, so it was made to simple pass the background through 'as is' - it's a 3ds max thing.

That and more great help at the official SplutterFish Forum.
:D

[Dave Black]

*cough*

Answer also available 6 posts up...

*cough*

-3DZ

:D

[halo]

yep...set it to enviroment>spherical :)

[yfx]

I'm a little bit confused. If for instance I have that boat picture as the background, seems like the only way is to use screen? Cuz appears like the other technique wraps around something (I'm assuming a large sphere) that would distort the picture.

How do you apply UVW modifiers to the environment anyway?

Oh the pains of learning :annoyed:

[yfx]

plz ignore the second question :p

I guess what I'm asking is: Is there a way to apply an image in the background w/o distorting the picture?? Right now seems like screen is causing trouble...so is there any other way to put a flat backdrop w/o the reflection issue?

Sorry if I keep repeating myself.

[ZeBoxx]

Use two maps - one for the background, and one for the reflection.

Can't have both a 'flat' backdrop and correct reflections, since you don't actually have anything in the surrounding to be reflected :)

3DZ: oops ;)

[Dave Black]

Zeboxx:
Hehe, no worries. Besides, you actually answered him, as opposed to my nebulous and underdefined guess.

yfx:

Hope you've got it fixed. Sounds like a simple answer, and remember to spread it around to the guys you know with the same problem.

-3DZ

:D

[yfx]

umm.....so how do i make car not reflect the background pic?? lol....I truly appreciate the help guys.

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