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Diffstat (limited to 'doc/userguide/index.html')
| -rw-r--r-- | doc/userguide/index.html | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/doc/userguide/index.html b/doc/userguide/index.html index 06d047f3f..58b8b3e29 100644 --- a/doc/userguide/index.html +++ b/doc/userguide/index.html @@ -159,6 +159,18 @@ recommendation when it is available, and otherwise attempts to use a platform-independent selection algorithm. </P> +<P> + +The GLJPanel can be made non-opaque according to Swing's rendering +model, so it can act as an overlay to other Swing or Java2D drawing. +In order to enable this, set up your GLCapabilities object with a +non-zero alpha depth (a common value is 8 bits) and call +setOpaque(false) on the GLJPanel once it has been created. Java2D +rendering underneath it will then show through areas where OpenGL has +produced an alpha value less than 1.0. See the JGears and JRefract +demos for examples of how to use this functionality. + +</P> <H2> Writing a GLEventListener </H2> |