Here is an approach that I have used. Your environment will be 3D tiles and you will be looking down at a given angle upon your map. Buildings will be 3D.
But items such as trees/lamps/grass/etc.. are non animated 2D billboard objects. Create billboard objects for your 2D sprites. You will need to store your animations in one(or more) textures. What you need to create is a method to cycle through the frames. This can be done by applying multiple textures for each frame(highly inefficent), or what I would recommend is to use the fewer textures per sprite and sub section the textures for each frame. Then what you are essentially doing is updating the texture coordinates between frames. I go to the next frame during the AnimBehavior class. Each Animated Object, I have a series UV coordinates for a texture that define the frames within an animation. As you cycle through the series and update your UV coordinates you get your animated 2D sprite effect. For Characters you need to determine which way they are facing. This will determine which angle you are animating as you rotate around the character. You most likely have 4 or more equivalent animation variations. Two for if you are at the front right or left of a character and two for right and back of the character. Hope this helps. -----Original Message----- From: Nicholas Pappas [mailto:[EMAIL PROTECTED] Sent: Monday, November 22, 2004 12:07 AM To: [EMAIL PROTECTED] Subject: [JAVA3D] Drawing 2D Graphics on Canvas3D -- with collision detection Hello all! I am currently working on a small game engine to create a 3D tile map w/ 2D sprites on top. My first issue is getting the 2D sprites on the Canvas3D (the seamingly holy grail). I have found code for one solution by overloading the postRender() function in Canvas3D. This works for simple static graphics, but I will have many 2D sprites moving about -- likely without the user interacting with the 3D space at times. So I'm not sure that the postRender() overload is a viable solution for me. After the Canvas3D has loaded, how can I display 2D sprites which can animate and move over the map in the most effective way? My second problem is, once I have the first solved, I need to handle collision detection between these 2D sprites and the 3D map. Does anyone have any suggestions on how I can handle this detection between the two graphic types? Thank you so much for any help!! =========================================================================== 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". =========================================================================== 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".
