Away3D Forum How to Change TextureMaterial and Heightmap?

dubletar, Member
Posted: 05 January 2014 03:43 PM Total Posts: 73

Hi all,

I created a 3d extrude landscape, but I am trying to change the TextureMaterial and Height Map from a newly downloaded texture and heightmap, while the extrude is already generated.

I cannot figure out how to do this, can anyone help?

Please help and thank you very much.

theMightyAtom, Sr. Member
Posted: 06 January 2014 07:40 AM Total Posts: 669 [ # 1 ]

Can you post your code? It might be as simple as invalidating the previous texture.

yourTexture.invalidateContent();

This is necessary when updating a bitmapTexture.

Good Luck!

dubletar, Member
Posted: 09 January 2014 03:22 AM Total Posts: 73 [ # 2 ]

Thanks for the response. The code is below. It checks if a terrain exists, if not, it creates it. That’s fine. However, I dont know how to properly update the created Elevation with the new texture and new heightmap.

I really appreciate the help.

// Create the new texture
var leTxtr:BitmapData = new BitmapData(2048, 2048, false, 0x00000000);
leTxtr.draw(mapImgCon);

var terrainMaterial:TextureMaterial = new TextureMaterial(new BitmapTexture(leTxtr));
terrainMaterial.ambientColor = 0x303040;
terrainMaterial.ambient = .5;
terrainMaterial.specular = 0;    terrainMaterial.addMethod(globals.vars.fogMethod);
    
//create the heightmap
var leHMap:BitmapData = new BitmapData(2048, 2048, false, 0x00000000);
leHMap.draw(mapHgtCon);
     
// Check if there is a terrain present
if (terrain == false)
{
terrain = new Elevation(terrainMaterial, leHMap, 2048, 38, 2048, 250, 250, 255, 0, false);
terrain.name = 'tile';
terrain.y = -9;
addChild(terrain);
}
else
{
// If the terrain already exists, change the texture and the heightmap with the new texure and heightmap

/* This is the area with the problem. I dont know how to change the texture and/or the heightmap, and have the 3D terrain to update */
terrain.material = terrainMaterial;
trace('elevation updated');
} 

theMightyAtom, Sr. Member
Posted: 09 January 2014 02:28 PM Total Posts: 669 [ # 3 ]

terrain.material = terrainMaterial;
((terrain.material as TextureMaterial).texture as BitmapTexture).invalidateContent();
trace('elevation updated'); 

That should refresh the texture after you assigned the material (which is already assigned?)

The Elevation class doesn’t appear to support an update of it’s height map :(
You could add this functionality to it, or dispose of it and create a new mesh.

Good Luck!

dubletar, Member
Posted: 09 January 2014 08:28 PM Total Posts: 73 [ # 4 ]

Do you know of any other alternative classes to Elevation that allows change to heightmaps?

dubletar, Member
Posted: 09 January 2014 08:38 PM Total Posts: 73 [ # 5 ]

Actually, I found it here.

http://away3d.com/forum/viewthread/1110/#3808

How to Change TextureMaterial and Heightmap? Software: Away3D 4.x

dubletar, Member Posted: 05 January 2014 03:43 PM Total Posts: 73 Hi all, I created a 3d extrude landscape, but I am trying to change the TextureMaterial and Height Map from a newly downloaded texture and heightmap, while the extrude is already generated. I cannot figure out how to do this, can anyone help? Please help and thank you very much.
theMightyAtom, Sr. Member Posted: 06 January 2014 07:40 AM Total Posts: 669 [ # 1 ] Can you post your code? It might be as simple as invalidating the previous texture. yourTexture.invalidateContent(); This is necessary when updating a bitmapTexture. Good Luck!
dubletar, Member Posted: 09 January 2014 03:22 AM Total Posts: 73 [ # 2 ] Thanks for the response. The code is below. It checks if a terrain exists, if not, it creates it. That’s fine. However, I dont know how to properly update the created Elevation with the new texture and new heightmap. I really appreciate the help. // Create the new texture var leTxtr:BitmapData = new BitmapData(2048, 2048, false, 0x00000000); leTxtr.draw(mapImgCon); var terrainMaterial:TextureMaterial = new TextureMaterial(new BitmapTexture(leTxtr)); terrainMaterial.ambientColor = 0x303040; terrainMaterial.ambient = .5; terrainMaterial.specular = 0; terrainMaterial.addMethod(globals.vars.fogMethod); //create the heightmap var leHMap:BitmapData = new BitmapData(2048, 2048, false, 0x00000000); leHMap.draw(mapHgtCon); // Check if there is a terrain present if (terrain == false) { terrain = new Elevation(terrainMaterial, leHMap, 2048, 38, 2048, 250, 250, 255, 0, false); terrain.name = 'tile'; terrain.y = -9; addChild(terrain); } else { // If the terrain already exists, change the texture and the heightmap with the new texure and heightmap /* This is the area with the problem. I dont know how to change the texture and/or the heightmap, and have the 3D terrain to update */ terrain.material = terrainMaterial; trace('elevation updated'); }
theMightyAtom, Sr. Member Posted: 09 January 2014 02:28 PM Total Posts: 669 [ # 3 ] `terrain.material = terrainMaterial; ((terrain.material as TextureMaterial).texture as BitmapTexture).invalidateContent(); trace('elevation updated');` That should refresh the texture after you assigned the material (which is already assigned?) The Elevation class doesn’t appear to support an update of it’s height map :( You could add this functionality to it, or dispose of it and create a new mesh. Good Luck!
dubletar, Member Posted: 09 January 2014 08:28 PM Total Posts: 73 [ # 4 ] Do you know of any other alternative classes to Elevation that allows change to heightmaps?
dubletar, Member Posted: 09 January 2014 08:38 PM Total Posts: 73 [ # 5 ] Actually, I found it here. http://away3d.com/forum/viewthread/1110/#3808

How to Change TextureMaterial and Heightmap?

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