Convert World Space to Camera Space

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Hi,

I'm trying to figure out how to convert a point in space into camera space. Let's say I have a sphere at 100,50,-10 and it's in the center left of my camera view. The camera has a resolution of e.g. 800x600. Basically what I want t0 convert is a Vector3(100,50,-10) to a Vector2(200,300) (the xy coordinates relative to the camera's resolution).

I've read the Matrix of the object through the worldTransform() function, but then what? There are some space conversion functions in VOPs apparently, but I have to admit that is not familiar territory… any hints or examples would be much appreciated.

Cheers
Michael
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the toNDC VOP will do just what you need
just provide camera path and point position in world space and it will return relative position in the screen space 0-1
so just multiply it with (800,600,0) vector and you have your result
Tomas Slancik
FX Supervisor
Method Studios, NY
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Perfect, that works like a charm! Thanks Tomas!
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Hi ripclaw and tamte,

I ventured into this from google search. I am trying to do the same thing with one slight difference. I have got a sphere which I want to place it at the corner of my camera view.

How shoud I do it? Could you please help me?

Thanks.
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tumurtogtokh
Hi ripclaw and tamte,

I ventured into this from google search. I am trying to do the same thing with one slight difference. I have got a sphere which I want to place it at the corner of my camera view.

How shoud I do it? Could you please help me?

Thanks.


https://www.youtube.com/watch?v=7UuVhbTRcew [www.youtube.com]
~31.30
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pietas
tumurtogtokh
Hi ripclaw and tamte,

I ventured into this from google search. I am trying to do the same thing with one slight difference. I have got a sphere which I want to place it at the corner of my camera view.

How shoud I do it? Could you please help me?

Thanks.


https://www.youtube.com/watch?v=7UuVhbTRcew [www.youtube.com]
~31.30

That is it! Thank you mate
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