I think I may have found a bug in Java3D 1.3 beta1. I've attached a small program that adds points to a LineStripArray to make it form a circular path. When it adds a new point, it increments the line's visible length by calling setStripVertexCounts(). It also sets the color of the vertex to a fixed color value (white). I gave it a BLENDED TransparencyAttributes object with a blend value of 0.025, which should make the entire line almost completely opaque. But when I run the program, the line starts out opaque, but then fades away to nothing. If I don't set the color of every vertex, the transparency works fine. Or if I use SCREEN_DOOR instead of BLENDED, it's also fine. I also get the same result if I use a TriangleStripArray instead of a LineStripArray. I'm using JDK1.4 with OpenGL Java3D 1.3 beta1 and running on WinNT with an NVidia Gladiac GeForce2 Ultra card. I tried this on a Sun Ultra 10 with Solaris 8 and the problem didn't occur, so that leads me to believe it's either the Windows version of Java3D or a problem with my graphics card. I don't have any other PC cards to test it on. Has anyone noticed this before?
-Roy Duffy [EMAIL PROTECTED]
Java3dLine.java
Description: application/unknown-content-type-java_auto_file
LineTest.java
Description: application/unknown-content-type-java_auto_file
