reflection bug

[werticus]

I have no idea what is going on in my scene right now...

Attached is 3 images... first image is IR map set to medium...



second image is brute force



and third image is brute force with black background, black environment.






No hint of a image file anywhere in the scene that could be creating this effect. The material itself has zero reflection / refraction - so its almost like its being projected onto the wall. Problem is there is no GI environment, no reflection / refaction map, a plain blue colour for the sky light.

[werticus]

here it is with gi off:




its a single frame ir map, not a saved file...
any ideas of where its magically coming from?

[RErender]

Is your environment set to screen mode?

[Aldaryn]

Yup, if you background image is screen mapped, GI will just print it on your image. It's pretty logical, if you consider how screen mapping and GI works.

Better have your BG image on a plane far from the scene.

best regards,

A.

[Da_elf]

from what i can see of the sky behind the building and the image mapped onto the structure im guessing that image isnt hjis background image. its something else wrong

[instinct]

Ad ome light set to "store with irrmap" with a texture maybe ? just a shot in the dark.

Regards,
Thorsten

[RErender]

from what i can see of the sky behind the building and the image mapped onto the structure im guessing that image isnt hjis background image. its something else wrong

OK, it is the map in his environment override slot that is set to screen. ?

[werticus]

okay guys, good suggestions all round, and i checked out everything you mentioned


the environment over ride was set to vray sky map... so that isn't the problem and the background is definitely a different image, and it was set to screen, however setting it to a normal texture for the purpose of a test didn't change the result.

there is only one light, vray sun so no option to store with ir map that i could see.

I've just identified the texture.... its the grass texture! which i use in environment mode...

[werticus]

okay if i change that texture, or turn the ground plane off environment screen mode, it fixes the problem: however why the hell is the ground plane texture spilling over to the rest of the image? ... its... a bug for sure?

[werticus]

if i change the vray properties on the ground plane to:

'not generate gi'

then it also fixes the problem and lets me use the ground plane with a environment map to get a nice grass...


thanks for all your help everyone its solved