Length of a ray path

[Helper]

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 10/05/2006 at 15:38, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   9.5 
Platform:   Windows  ;   
Language(s) :     C++  ;

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Hi,
Is there any way to retrieve or calculate how long distance is travelad by a ray until it hits an opaque surface? Something like Z depth stored in VPFragment but not limited to the first encountered surface. It would be perfect to have it inside the videopost.

Regards,
Piotr

[Helper]

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 16/05/2006 at 13:35, xxxxxxxx wrote:

I can't find this information anywhere within BaseVolumeData. However, it should be easy to calculate using TraceGeometry(), accumulating the distance along the way, possibly checking for opaqueness using GetSurfaceData().