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jPCT-AE - a 3d engine for Android => Support => Topic started by: Thomas. on December 22, 2010, 08:13:11 pm
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What all can I use in 3Ds max for correct displayed in render scene? (UVW mapping, opacity, specular, diffuse color or bitmap,...). Thanks :)
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jPCT loads polygonal meshes, their texture information and -mapping as well as diffuse colors. It's not loading any camera, scene or lighting information.
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And can I load from one 3ds more then one object?
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Yes. jPCT will return you an array with the objects in the file.
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Ok, but if I load 3ds file with complete scene (buildings, lamp, trees,...), how I find position of individual objects? And how can I use texture to specific object in scene? Some example would be very useful :)
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If I load objects from one 3ds file and every one add into world, everything have a bad position... How can I translate objects to position, where should be?
And my next issue is, that I can not load 3ds objects from SD...
If I use this, all are ok
int numbOfObjects = Loader.load3DS(res.openRawResource(R.raw.map01), 1).length; but this not working
InputStream map = new FileInputStream(MAPS_PATH + "map01" + ".3ds");
int numbOfObjects1 = Loader.load3DS(map, 1).length;and this working, but load only first object
levelObj[0] = Loader.load3DS(map, 1)[0];
and here is log
12-26 15:52:56.259: INFO/jPCT-AE(1955): Processing object from 3DS-file: =monitor01
12-26 15:52:56.263: INFO/jPCT-AE(1955): Object '=monitor01_jPCT9' created using 12 polygons and 8 vertices.
12-26 15:52:56.263: INFO/jPCT-AE(1955): Loading file from InputStream
12-26 15:52:56.263: INFO/jPCT-AE(1955): [ 1293375176265 ] - ERROR: Couldn't read file from InputStream
12-26 15:52:56.310: WARN/dalvikvm(1955): threadid=8: thread exiting with uncaught exception (group=0x4001d7d0)
12-26 15:52:56.310: ERROR/AndroidRuntime(1955): FATAL EXCEPTION: GLThread 9
12-26 15:52:56.310: ERROR/AndroidRuntime(1955): java.lang.RuntimeException: [ 1293375176265 ] - ERROR: Couldn't read file from InputStream
12-26 15:52:56.310: ERROR/AndroidRuntime(1955): at com.threed.jpct.Logger.log(Logger.java:159)
12-26 15:52:56.310: ERROR/AndroidRuntime(1955): at com.threed.jpct.Loader.loadBinaryFile(Loader.java:1083)
12-26 15:52:56.310: ERROR/AndroidRuntime(1955): at com.threed.jpct.Loader.loadBinaryFile(Loader.java:1024)
12-26 15:52:56.310: ERROR/AndroidRuntime(1955): at com.threed.jpct.Loader.load3DS(Loader.java:1409)
12-26 15:52:56.310: ERROR/AndroidRuntime(1955): at com.threed.jpct.Loader.load3DS(Loader.java:143)
12-26 15:52:56.310: ERROR/AndroidRuntime(1955): at cz.game.main.Demo$MyRenderer.onSurfaceChanged(Demo.java:701)
12-26 15:52:56.310: ERROR/AndroidRuntime(1955): at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1325)
12-26 15:52:56.310: ERROR/AndroidRuntime(1955): at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1116)
12-26 15:52:56.310: WARN/ActivityManager(3166): Force finishing activity com.main/cz.game.main.Demo
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this may be related to your position problem:
http://www.jpct.net/forum2/index.php/topic,617.0.html
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Many thanks... problem with position is gone :)
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I loaded object from 3ds file and now I need translate other object to same position in worldspace, but method getTranslation and getWorldTranslation every return 0 as position, even method align does not working... any advice?
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try Object3D.getTransformedCenter()
getTranslation() does not help in this case, since your object isnt translated in world space. it's just an object with distant-to-origin polygons.
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I used this and it not working :(
levelObj[i] = Loader.load3DS(res.openRawResource(R.raw.map01), 1)[i];
InputStream part = new FileInputStream(PARTS_PATH + partName + ".3ds");
SimpleVector pos = new SimpleVector(levelObj[i].getTransformedCenter());
levelObj[i] = Loader.load3DS(part, 1)[0];
levelObj[i].translate(pos);
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first you should call build(). besides other things, build calculates center of object. also have a look at calcCenter method
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now its ok, thanks :)