We have a Windows NT system with an Intense3D Real Zm11 VX113-GT graphics
adapter which shows these problems with OpenGL applications (not Java3D)
As we rotate an object, sometimes line end-points jump to random locations.
We suspect the OpenGL implementation.
We have tried various driver levels and not been able to fix the
problem.
We have had no responce from the manufacturer (nothing new here!!)
Regards
Don
Don Scales
Senior Systems Consultant
Schlumber Geco-Prakla
Gatwick
UK
>
>From: "Casteel, Don" <[EMAIL PROTECTED]>
>Subject: [JAVA3D] Strange lighting?
>To: [EMAIL PROTECTED]
>
>We've just purchased an Integraph system with an Intense3D Wildcat 3510
>graphics card. We have 16Mb of texture memory, and 16Mb frame buffer.
>
>The OS is WinNT, and OpenGL is installed.
>
>I've installed Java2 and Java3D(OpenGL), and am running an application that
>works on my old computer.
>
>I've got a QuadArray and a couple of Line arrays on the canvas. The
>QuadArray has per-vertex colors, and shaded material with highlights (it has
>a nice glossy appearance).
>
>Now, as I rotate the scene, my lines start acting funny, endpoints suddenly
>shifting to random locations. If I rotate a little more they go back to
>where they belong, rotate a little more they shift again etc.....
>
>Also the shading shifts and changes as I move around, some times the
>appearance is glossy on only part of the QuadArray, other times the whole
>surface seems shadowed, other times it seems to almost glow.
>
>Now bear in mind these things aren't happening on my old machine, so it's
>not light placement or anything like that.
>
>I have tried increasing the bounding sphere's radius, but that doesn't help
>either.
>
>Has anyone experienced similar problems?
>
>(The graphics look great in other software programs running on the machine)
>
>Don Casteel
>
>Manufacturing Engineer
>TEXTRON Automotive Company -- Athens Operations
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