Hey guys!
I am rendering 13 scenes to 26 textures using a code very similar to ImposterNode, this is how i set the textures up:
tRenderer =
(LWJGLTextureRenderer)DisplaySystem.getDisplaySystem().createTextureRenderer(twidth, theight,
TextureRenderer.Target.Texture2D);
tRenderer.setBackgroundColor(new ColorRGBA(0, 0, 0, 0));
tRenderer.setMultipleTargets(false);
animatedTexture = new Texture2D();
stillTexture = new Texture2D();
animatedTexture.setMagnificationFilter(MagnificationFilter.Bilinear);
animatedTexture.setMinificationFilter(MinificationFilter.Trilinear);
stillTexture.setMagnificationFilter(MagnificationFilter.Bilinear);
stillTexture.setMinificationFilter(MinificationFilter.Trilinear);
tRenderer.setupTexture(stillTexture);
tRenderer.setupTexture(animatedTexture);
as you can see i render every scene with one TextureRenderer to two textures. This works just fine on all systems with nVidia Cards, however when i try to run it on an ATI card i will get 13 of these (for every TR):
Jun 9, 2009 12:55:56 PM class com.jme.renderer.lwjgl.LWJGLTextureRenderer render(Spatial, Texture, boolean)
SEVERE: Exception
java.lang.RuntimeException: FrameBuffer: 13, has caused a GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT exception
at com.jme.renderer.lwjgl.LWJGLTextureRenderer.checkFBOComplete(LWJGLTextureRenderer.java:783)
at com.jme.renderer.lwjgl.LWJGLTextureRenderer.setupForSingleTexDraw(LWJGLTextureRenderer.java:726)
at com.jme.renderer.lwjgl.LWJGLTextureRenderer.render(LWJGLTextureRenderer.java:569)
at com.jme.renderer.lwjgl.LWJGLTextureRenderer.render(LWJGLTextureRenderer.java:545)
at ...
and finally that one, which will crash the application:
Jun 9, 2009 12:55:56 PM com.jmex.game.DefaultUncaughtExceptionHandler uncaughtException
SEVERE: Main game loop broken by uncaught exception
org.lwjgl.opengl.OpenGLException: Invalid framebuffer operation (1286)
at org.lwjgl.opengl.Util.checkGLError(Util.java:54)
at org.lwjgl.opengl.Display.swapBuffers(Display.java:640)
at org.lwjgl.opengl.Display.update(Display.java:660)
at com.jme.renderer.lwjgl.LWJGLRenderer.displayBackBuffer(LWJGLRenderer.java:532)
at com.jmex.game.StandardGame.run(StandardGame.java:252)
at java.lang.Thread.run(Thread.java:619)
Now, i have narrowed it down to what is the problem. When i DONT use MipMapping for the rendered Textures it WORKS but looks ugly (so i really need it to work).
animatedTexture.setMinificationFilter(MinificationFilter.BilinearNoMipMaps);
stillTexture.setMinificationFilter(MinificationFilter.BilinearNoMipMaps);
TO SUM UP:
ATI card + FBO + MipMap == CRASH
ATI card + FBO + NO MipMap == OK
nVidia card + FBO + * == OK
The behavior is the same on Vista, Ubuntu and XP. I use the current jme 2.0 trunk.
any ideas? thanks in advance.
