Diffuse color changing with js

Question

Hi all
is it possible to change the diffuse color of a material through a js command? And swaping between different image maps?
Let say we want to change the color of a chair with a mouse click on a button... Could please someone post a sample piece of code?
Thanks for helping
Alberto

Answer 1

Hi Alberto,
it is possible to change the diffuse color and the diffuse texture of a material. To change the texture you have to add an imageresource to your PDF-file first. Acrobat Professional and Acrobat 3D dont support adding resources. To add a resource you need a plugin. You can download such a plugin here: http://www.graysonlang.com/Attach3DResource.api
Use the following code to change the diffuse color or the diffuse texture of your meshes:
//##### changeDiffuseColor #####
function changeDiffuseColor() {
//##### 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.diffuseColor.setColor(c1);
objectMaterial.diffuseColor.set3(0.9,0.99,0.1);
//##### 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);
You can download a working example at my website:
http://www.web-3d.info/material.zip
I hope i could help you
Michael