public void initScene() {
//
// -- Pack all textures in the "assets/atlas" folder into an 1024x1024 atlas
// -- this should be used to simplify implementation of multiple textures
// -- and to reduce texture binding calls to the GPU for increased performance
//
mAtlas = new TexturePacker(mContext).packTexturesFromAssets(1024, 1024, 0, false, "atlas");
mAtlasMaterial = new Material();
mSphereMaterial = new Material();
mCubeMaterial = new Material();
mPlaneMaterial = new Material();
try {
//
// -- Add the entire atlas to a material so it can be shown in the example
// -- this is not necessary in typical use cases
//
mAtlasMaterial.addTexture(new Texture("atlasTexture", mAtlas.getPages()[0]));
mAtlasMaterial.setColorInfluence(0);
//
// -- Add each target texture to the material
// -- they are pulled from the atlas by their original resource name
//
mSphereMaterial.addTexture(new Texture("earthtruecolor_nasa_big", mAtlas));
mSphereMaterial.setColorInfluence(0);
mCubeMaterial.addTexture(new Texture("camden_town_alpha", mAtlas));
mCubeMaterial.setColorInfluence(0);
mPlaneMaterial.addTexture(new Texture("rajawali", mAtlas));
mPlaneMaterial.setColorInfluence(0);
} catch (TextureException e) {
e.printStackTrace();
}
//
// -- Show the full atlas for demonstration purposes
//
mAtlasPlane = new Plane(Axis.Z);
mAtlasPlane.setMaterial(mAtlasMaterial);
mAtlasPlane.setY(1);
addChild(mAtlasPlane);
mTileSphere = new Sphere(.35f, 20, 20);
mTileSphere.setMaterial(mAtlasMaterial);
//
// -- The method 'setAtlasTile' is used to scale the UVs of the target object
// -- so that the appropriate image within the atlas is displayed
//
mTileSphere.setAtlasTile("earthtruecolor_nasa_big", mAtlas);
mTileSphere.setPosition(0, -.1f, 0);
addChild(mTileSphere);
mTileCube = new Cube(.5f);
mTileCube.setMaterial(mAtlasMaterial);
mTileCube.setAtlasTile("camden_town_alpha", mAtlas);
mTileCube.setPosition(-.5f, -1f, 0);
mTileCube.setRotX(-1);
addChild(mTileCube);
mTilePlane = new Plane(.6f, .6f, 1, 1);
mTilePlane.setMaterial(mAtlasMaterial);
mTilePlane.setAtlasTile("rajawali", mAtlas);
mTilePlane.setPosition(.5f, -1f, 0);
addChild(mTilePlane);
}
