Buttons change texture on object - got a script now what ?

Question

I'm newbie on Javascript and I'm trying to figure out this script that was posted by Michael Kreutz on this forum ;
---- This is the script that is used on the 3D object -----
//##### changeDiffuseTexture #####
function changeDiffuseTexture() {
textureRes = new Resource("pdf://yourTexture.jpg");
textureImg = new Image(textureRes);
//#### if you want to call the mesh by index #####
objectMaterial = scene.meshes.getByIndex(0).material;
//##### if you want to call the mesh by name instead of index #####
//objectMaterial = scene.meshes.getByName("theMeshsName").material;
objectMaterial.diffuseTexture.setImage(textureImg);
---- This is the script that is used on the button ----
getAnnots3D(0)[0].context3D.changeDiffuseTexture();
I'm making a proof of concept to show this (future) client the possibilities of 3D pdf.
I show a 3D object and besides the 3D object are several buttons that change the texture of the 3D object.
This 3D object has 2 materials ; one is just diffuse color and the other one has a UVmap on the diffuse map.
So when one clicks on a button the script should load up the correct UVdiffusemap-image.
I use this plugin to attach the resource images for the UVmap
http://www.graysonlang.com/Attach3DResource.api
Now for the question part :)
** When I apply the "getbyindex" version and click a button it replaces the diffusecolor part of the object with the image, instead of the UVmap part - how can I tell javascript to look for my UVmap .. in other words where can I see what the index of this material is -> I've tried changing the numbers in both scripts but that didn't do it !
The "getbyname" didn't do anything -> where can I see the name of the UVmap part ?
** How can I apply the different images to the different buttons ? Or should I do this in the .js-file that is attached to the 3D object ?
** Is there a way to make the change of texture realtime - without first having to click on the 3D-window ? That is what happens now when the texture of the diffusecolor part changes !
Any hint is welcome -
K.

Answer 1

I'm newbie on Javascript and I'm trying to figure out this script that was posted by Michael Kreutz on this forum ;
---- This is the script that is used on the 3D object -----
//##### changeDiffuseTexture #####
function changeDiffuseTexture() {
textureRes = new Resource("pdf://yourTexture.jpg");
textureImg = new Image(textureRes);
//#### if you want to call the mesh by index #####
objectMaterial = scene.meshes.getByIndex(0).material;
//##### if you want to call the mesh by name instead of index #####
//objectMaterial = scene.meshes.getByName("theMeshsName").material;
objectMaterial.diffuseTexture.setImage(textureImg);
---- This is the script that is used on the button ----
getAnnots3D(0)[0].context3D.changeDiffuseTexture();
I'm making a proof of concept to show this (future) client the possibilities of 3D pdf.
I show a 3D object and besides the 3D object are several buttons that change the texture of the 3D object.
This 3D object has 2 materials ; one is just diffuse color and the other one has a UVmap on the diffuse map.
So when one clicks on a button the script should load up the correct UVdiffusemap-image.
I use this plugin to attach the resource images for the UVmap
http://www.graysonlang.com/Attach3DResource.api
Now for the question part :)
** When I apply the "getbyindex" version and click a button it replaces the diffusecolor part of the object with the image, instead of the UVmap part - how can I tell javascript to look for my UVmap .. in other words where can I see what the index of this material is -> I've tried changing the numbers in both scripts but that didn't do it !
The "getbyname" didn't do anything -> where can I see the name of the UVmap part ?
** How can I apply the different images to the different buttons ? Or should I do this in the .js-file that is attached to the 3D object ?
** Is there a way to make the change of texture realtime - without first having to click on the 3D-window ? That is what happens now when the texture of the diffusecolor part changes !
Any hint is welcome -
K.