no 3d effect for streams in arc scene

[AWagenmaker]

Hello,

i added my streams (flow accumulation threshold) to arc scene and checked obatain height from the properties in tab base height.
But still no 3d effect, what di i need to do, know that the stream raster does not have elevation value. I tried tsome stuff but all got error.
Please help, thanks in advance

regards Agnes

[EricRice]

Agnes,

Normally when you apply a stream threshold you tell the software that streams are equal to 1, and all else is nodata.  So, if you set this layer to obtain base heights from itself, you get a constant of 1 and it would be flat.  You can drape the streams on the dem you used to obtain flow direction /accumulation and it should look better for you.

Best,
Eric