Mirror like reflections on non-glossy surfaces

[paulzet]

I set a normal photo as the environment map set to "screen".

And for whatever reason, the non glossy surfaces are reflecting like mirrors!

 

 

larger image here

 

The matte colour awning has 0 reflectivity, and the environment map can be seen "reflecting" on it.

 

The door frame has a r.glossiness of 0.6, but reflects like a mirror.

 

The balcony tiles are also reflecting like a mirror.

 

Anyone know what's going on?

[Francisco Penaloza]

you should not use screen projection for that. 3D Max or VRay does not know what place in the 3D space is that image and that's why it reflec it wrong. Screen projection is more a legacy type or environment.

 

You should place that image in a place inside a self illuminated material, and scale as need it.

It could be better is it is a panorama but regular flat image work too as simple background.

You'll still need to check your reflections just in case the location of this panel is not covering enough.

[paulzet]

The issue is that there shouldn't be any reflection at all.

 

All those surfaces are matte

[landrvr1]

You're absolutely positive that the material slot in the editor is the same material? And that there's nothing in the reflection slots that you forgot about? Have you applied a different material to those objects (like a flat white) and then rendered? What does it look like then? After that, reapply your preferred material. Is there still a problem?

[paulzet]

You're absolutely positive that the material slot in the editor is the same material? And that there's nothing in the reflection slots that you forgot about? Have you applied a different material to those objects (like a flat white) and then rendered? What does it look like then? After that, reapply your preferred material. Is there still a problem?

 

Yes everything is correctly done.

 

I did follow Francisco Penaloza's advice, and it fixed the issue.

I re-imported the model into a new file with no environment map, and made a plane for the background image. And all the materials reflected as it should.

 

And to make sure it was the screen projection issue, I added a screen projected environment map to the new file, and the mirror reflections came back.

 

So thank you Francisco Penaloza!

[Francisco Penaloza]

Glade it work it out for you.

[landrvr1]

Right on!