shading

Engines, Libraries and Tools Java 3D
#1

hi

in my java3d game (pool game) I’d like to see the shade the balls on the pool.
Does anyone know how to render shading with java3d?

you can see my game at:

http://www.geocities.com/calzada_us/Billard3D/Pool.html

Regards,
FRanck

#2

um, i don’t use java3D, but if it’s anything like OpenGL all you need is to create a point light source and enable lighting, and Lambert’s-Law diffuse shading with be automatic. However, the balls would still not cast shadows in the table, they would only be shaded themselves. Or you could create a specular light source for each ball.

#3

To shade you must always:

  1. have a material

  2. the object must be lighted

To shade if you use textures use either:

TextureAttributes.MODULATE

or

TextureAttributes.BLEND

Hope that helps

#4

Well,

actually I wasn’t clear on my needs.
What I need is to have the shadow of the ball reflected on the table. I learned that java3d didn’t support it for many technical reason, that makes sence. but I was wondering if someone developed something related to that.

Regards,
Franck

#5

If you know the position of the balls and lights you can darw fake shadows (black circles over the table). The geometry of these shadows needs to be updated every time a ball changes its position.

Using a bit of trigonometry you can get approximated bounds for the shadows, but seeing your app, I don’t think you’ll have problems with that. :wink:

Rafael

#6

I already thought about it. But I didn’t want to re-invent the wheel.
Looks like I have to…