Hello

I’m very new to away3D. And I want to know if there is an clickevent in away3D with a reference to the texture of an mesh with the uv-coordinates auf the texture, so that you could reference through the texture possible 2d displayobjects.

If you want to realize 3D webpages, I think there is always this problem of interaction, so that there should exist a solution.

What is the typical workflow for that?

Have someone experiences with things like that?

Thanks carsten

Hi Carsten,

The MouseEvent3D already provides UV info, you just have to enable it on the clickable mesh with mesh.mouseDetails = true;

I don’t see a need for the event to reference the texture, that would be weird in my opinion : MouseEvent3D provides the clicked material, just get your texture from there if you need, am I missing something ?

Here is the MouseEvent3D doc just in case : http://away3d[dot]com/livedocs/away3d/4.0/away3d/events/MouseEvent3D.html

Replace [dot] with a dot… pleaaaaase admins do something about the false spam detection when linking to away3d[dot]com : I think I’ll end up creating a dedicated topic about this as I seem to speak in the void :D

Thanks for the information.

I look it up in the reference and find the following explaination: ‘The uv coordinate inside the draw primitive where the event took place.’

What is the meaning of draw primitiv ?

I find a class PrimitiveBase, but I’m not shure, if draw primitiv are primitives meshes?? because this would mean, that only uv coordinates of primitives would be accessable?

I hope draw primitiv have got a more complex meaning concerning materials, like you wrote.
When I would have the uv coordinates of the mesh how would I get the uv coordinates of the bitmap, through the material.

sorry, I’m at the beginning.

In my understanding, a draw primitive is anything that gets drawn on screen : a mesh, a Sprite3D…

A mesh created from Primitive geometry (Cube, Plane, Cone etc) is exactly the same as a mesh you import from file. Getting the clicked UVs will work with any mesh (as long as it has texture coordinates I guess, which should almost always be the case).

Typically UVs are numbers between 0 and 1. On the X axis 0 will be your bitmap’s left, 1 will be your bitmap’s right. Same on Y axis : 0 for the top of the bitmap, 1 for the bottom.

Converting the clicked UV to a point in your Bitmap is just a matter of multiplying U with your bitmap’s width -1 and V with your bitmap’s height -1.

Say you have a 256x256 bitmap, and the UV you get from a click on your mesh is Point(0.5, 0.5) it will correspond to Point(127, 127) in your Bitmap (or 128, 128 depending on the rounding)