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VERT_COLORS Problem [message #86631]

Mon, 25 November 2013 02:03

Udo Grabowski
Messages: 17
Registered: February 2000

Junior Member

Hi,

I struggle with an animated tool that uses the "new style"
surface function, and I'm trying to update the vert_colors
option (which is tagged as updateable in the docs), but
it does not work at all. What I'm doing wrong here ?

; boring flat grey semi-transparent surface
; (poor man's transparency, as always in IDL....)
v = dist(10)
rgba = intarr(4,100)
rgba[0:*,0:*] = 110
S = surface(v,vert_colors=rgba)

; update to light grey nearly transparent
rgba[0:*,0:*] = 210
S.vert_colors=rgba
; still the same boring grey !

I tried several variants, setting vert_colors to 0,
refresh, different sequences in doing that, using
S->SetProperty,vert_colors=..., etc.etc.,
no help, it seems that this is just an immutable
variable and the documentation is wrong.
Used to work with 8.1, tried that also with 8.2.3,
but the 8.2.x version is so utterly borked in 3D that even
reporting all bugs is far beyond my time constraints....

IDL is using the OpenGL hardware driver of my NVIDIA
Quadro 2000 (running the solaris 64-bit version on openindiana 151a7).
Any ideas how to get that working ?

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[Message index]

		VERT_COLORS Problem By: Udo Grabowski on Mon, 25 November 2013 02:03
		Re: VERT_COLORS Problem By: David Fanning on Mon, 25 November 2013 06:00
		Re: VERT_COLORS Problem By: chris_torrence@NOSPAM on Mon, 02 December 2013 09:57

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