Change textures in a 3dscene

Question

Hi,
I have a 3dscene with a material called body.
I have uploaded in the scene properties at the 3d resource panel, 3 textures.
texture1.jpg   texture2.jpg   texture3.jpg
They look as embedded at the resource panel window.
Now I want to create 3 buttons so the textures of the  material body can be changed.
I have tried this code  for the first button but it is not working:
C3D = getAnnots3D(0)[0].context3D;
material = C3D.scene.materials.getByName("body");
material.diffuseTexture.image = new Image( new Resource( "pdf://texture1.jpg" ) );
Any help please,
thanks in advance

Answer 1

Because of the way the 3D AAPI works, the Resource constructor has to be called in the context of the 3D API (i.e. the operator "new" has to be run in that context). If you try to construct the Resource in the document API it will return as if it exists, but the contents will be invalid.
Simplest thing is to attach a JS file to the 3D annotation with a function defined, and call that function from your buttons:
In the 3D script:
function changeMat( texName, matName ) {
  var _matl = scene.materials.getByName ( matName );
  _matl.diffuseTexture.image = new Image( new Resource( "pdf://" + texName ) );
then your page-level button can call something like:
getAnnots3D( pageNum )[0].context3D.changeMat( "texture1.jpg", "body" );