Hennie, Ok, you have my heartfelt condolences.
I agree that enough people desire to do "overlays" that a reasonable implementation should just come packaged with Java 3D. You might want to try contacting David Yazel (Xith). I'm fairly sure he managed a fairly decent implementation of overlays before he started creating Xith as an alternative to Java 3D. - John Wright Starfire Research Hennie Kotze wrote:
Greetings I really hope someone can help me with this problem. I have been battling to get Java3D introduced at our company, and had been given a few days to come up with a workable solution. All has been going well...until..*dramatic, moody music*...the dreaded "overlay"! I tried this and that and the other, all are far too slow or too limiting. Then came along drawAndFlushImage. What a relief! The framerate hardly dropped, the quality of the graphics superb, everything but for one little problem was very OK. The little problem then slowly grew and became a nuisance, then an obstacle, and now it is threatening to kill my entire two weeks of blood, sweat and tears. HELP! Using:j3d 1.3b2, DirectX9, jdk1.5.0 I have a drawing routine inside a class (extending Behavior) with a WakeupOnElapsedFrames(0, true) that draws onto a BufferedImage.TYPE_4BYTE_ABGR, which in turn gets drawn onto the canvas3D by drawAndFlushImage(bufimg, 0, 0, null). I have enabled/disabled double buffering on the canvas, I am flushing my j3DGraphics2D, I am doing everything I am supposed to. I have tried possibly every order and sort...swapping lines of code around, commenting out, duplicating, etc...but the darn thing flickers madly. It seems as if the drawing of the overlay and the drawing of the 3D scene take turns being rendered, at other times each gets partially rendered onto the same frame. The overlay needs to be refreshed and redrawn on each frame with crisp, aliased graphics, because it is a simulation of the video display of a military helicopter which displays real-time flight, target and weapons info. Through my travels across the internet in search of answers it has become clear that the overlay thing is a major issue for j3d, and that no real solution exists. This relatively minor hassle seriously impedes the growth of the j3d community and the popularity of the platform, and should be addressed by sun as a matter of grave urgency! In the mean time, please, any words of advice (or even heart-felt condolences) will be gladly and gratefully appreciated. Yours in java Hennie Kotze =========================================================================== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA3D-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".
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