trouble with mapping

[jsruk]

So...i've made the sphere and mapped the hdri on it (first picture), then i've placed plane poly for floor and mapped hdri on it like on the sphere(secont picture), but when i render that i get sh*t (picture 3), so i have to move down a bit plane polygon, then i finaly got something (picture 4), but when camera is above and under Y position=0m, render looks wierd, somehow distorted (picture 4 and 5), but when camera is on y position=0m, then render looks normaly (picture 6), wtf:?

Does someone know how to set this scene so i can move camera up and down without image distortion?

Thanks

[Catlin]

This happens in max what i do:

Take a snapshot of the view where you want and make it like super big, then apply it to the envoironment slot so that its a still background and then just apply the original hdri file to the reflection shot.

[jsruk]

I've tryed that but i that case i can't move camera

[Catlin]

i know....in max you can redner the hdri map from the material ball,choose a nice place to render and render it out to any size.

[VHK]

Originally Posted by jsruk

So...i've made the sphere and mapped the hdri on it (first picture), then i've placed plane poly for floor and mapped hdri on it like on the sphere(secont picture), but when i render that i get sh*t (picture 3), so i have to move down a bit plane polygon, then i finaly got something (picture 4), but when camera is above and under Y position=0m, render looks wierd, somehow distorted (picture 4 and 5), but when camera is on y position=0m, then render looks normaly (picture 6), wtf:?

Does someone know how to set this scene so i can move camera up and down without image distortion?

Thanks

Actually, it's quite logical what happening.
First off, you should make the sphere approach the size of the actual scene. If those buildings are 50 m away, the radius of the sphere should also be 50 m. This should remove any problems with the Y-distortion, since the scale matches the reality of the mapping picture.

Regarding the map result of picture #3, you would expect this to happen. It' a basic mapping result (even in other 3D apps). The flat ground plane can never correctly assume the mapping of the sphere (which must be spherical, hence the result you get). Using a sphere is only useful for lighting and reflection. You cannot use it for a groundplane interaction as you intend.
If you want real light/shadow interaction between your photo-environment and e.g. a car, then you should in fact have a separate textured ground plane (to place the car on).


I hope this helps.

[Catlin]

VHK try not to bring up year old projects look at the date before posting!

[Johnas]

Yea I think this project is a dead one