instance render with normal

[wateryfield]

Hi, guys.

I'm working with instance recently. Let's say i stuck on something like instance with normal problem.

There was a example i built: i have a mountain sphere with point normal, i will show the N pass, then i instance the smalll ball on it, then tranfer normal to small ball.

 if i just use copy sop, it works correct. The N pass show right color.

After that i try instance sop, it was great tool. I override the material N, it link to the sphere point normal,.

It seems working, but was a wrong way. The N pass show a different color.

I have try my best to achieve it and keep modify the material again.

But if anyone can help me out it will be great!

Thanks. 

 

surface_normal

 

copy_correct_normal

 

instance_normal

 

instance_with_normal.hip

Edited April 11, 2015 by wateryfield

[Skybar]

I think you have to transform the normals, since the shader works in camera space. So in your file, Input1 -> Transform VOP (from World to Camera). It could be the other way around though, camera to world, I'm not entirely sure atm. Try it out!

[wateryfield]

I think you have to transform the normals, since the shader works in camera space. So in your file, Input1 -> Transform VOP (from World to Camera). It could be the other way around though, camera to world, I'm not entirely sure atm. Try it out!

I will have a try.

Thanks, skybar.

[wateryfield]

I think you have to transform the normals, since the shader works in camera space. So in your file, Input1 -> Transform VOP (from World to Camera). It could be the other way around though, camera to world, I'm not entirely sure atm. Try it out!

Thamks, Skybar.

After transform the world space to the camera space, the material render perfect.

Since i was a noob at material and shade, if the shade works in camera space, does attribute output form Global Variables already been transform to camera space?

[Skybar]

Thamks, Skybar.

After transform the world space to the camera space, the material render perfect.

Since i was a noob at material and shade, if the shade works in camera space, does attribute output form Global Variables already been transform to camera space?

I'm no expert at this, but yes I think so!