No, I have not tried to play with the clipping. I don't really know how to.
This is the constructor that I am using, which parameter affects the clipping?
public SpotLight(Color3f color,
Point3f position,
Point3f attenuation,
Vector3f direction,
float spreadAngle,
float concentration)
Constructs and initializes a SpotLight node using the specified parameters.
Parameters:
color - the color of the light source
position - the position of the light in three-space
attenuation - (constant, linear, quadratic)
direction - the direction of the light
spreadAngle - the spread angle of the light
concentration - the concentration of the light
/Sofia
At 09:15 2000-05-23 +0300, you wrote:
>Have you tried to play wth the clipping distance ?
>
>Sofia Sundstr�m wrote:
>
>> I am trying to create a spotlight, that is supposed to cast light like a
>> torch. It is placed in the camera. My problem is that when I get close to
>> an object, the spotlight goes out and the object turns black. I want the
>> object to get brighter as the camera (and spotlight) approaches it (as it
>> would if there was a torch).
>>
>> If someone knows how to solve my problem, please reply ASAP!
>>
>> Thanks,
>> Sofia
>>
>> This is a part of the code that i am using (some of it from the demo
>> SphereMotion):
>>
>> Vector3d lPos1 = new Vector3d(0.0, 0.0, -0.5);
>> Vector3f lDirect1 = new Vector3f(lPos1);
>> Point3f lPoint = new Point3f(0.0f, 0.0f, 0.0f);
>> Point3f atten = new Point3f(0.5f, 0.0f, 0.0f);
>>
>> BoundingSphere lightbounds =
>> new BoundingSphere(new Point3d(0.0,0.0,0.0),
100.0);
>>
>> Light lgt1 = new SpotLight(lColor1, lPoint, atten,
lDirect1,
>> 0.1f,1.0f);
>> lgt1.setInfluencingBounds(lightbounds);
>>
>> TransformGroup l1RotTrans = new TransformGroup();
>>
l1RotTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
>>
>> Transform3D t = new Transform3D();
>> TransformGroup l1Trans = new TransformGroup(t);
>> l1Trans.addChild(lgt1);
>> l1RotTrans.addChild(l1Trans);
>> Transform3D t = new Transform3D();
>> TransformGroup l1Trans = new TransformGroup(t);
>> l1Trans.addChild(lgt1);
>> l1RotTrans.addChild(l1Trans);
>>
>> PlatformGeometry pg = new PlatformGeometry();
>> ViewingPlatform vptest = u.getViewingPlatform();
>> Sphere pg_s = new Sphere(0.01f, app);
>> Shape3D pg_ss = pg_s.getShape();
>> pg_ss.setCapability(Shape3D.ALLOW_APPEARANCE_READ);
>> pg_ss.setCapability(Shape3D.ALLOW_APPEARANCE_WRITE);
>> pg_s.setCollidable(true);
>> Appearance pg_app = pg_ss.getAppearance();
>>
pg_app.setCapability(Appearance.ALLOW_COLORING_ATTRIBUTES_READ);
>>
pg_app.setCapability(Appearance.ALLOW_COLORING_ATTRIBUTES_WRITE);
>> TransformGroup pgTG = new TransformGroup();
>> Transform3D pgTrans= new Transform3D();
>> pgTrans.setTranslation(new Vector3d(0.0,0.0,-1.0));
>> pgTG.setTransform(pgTrans);
>> pgTG.addChild(pg_s);
>> TransformGroup testtest = new TransformGroup();
>> pg.addChild(testtest);
>> testtest.addChild(l1RotTrans);
>> vptest.setPlatformGeometry(pg);
>>
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>
>
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