Away3D Forum View3D background mipmapping

Here is a patch i tested on BitmapTexture class to add a useMipMapping parameter : (which i set to false on background texture)

// @Patch
private var _useMipMapping:Boolean = true;
//public function BitmapTexture(bitmapData : BitmapData)
public function BitmapTexture(bitmapData : BitmapData, useMipMapping:Boolean = true)
{
 super();

 this.bitmapData = bitmapData;
 _useMipMapping = useMipMapping;
}

override protected function uploadContent(texture : TextureBase) : void
{
 // @Patch
 // MipmapGenerator.generateMipMaps(_bitmapData, texture, _mipMapHolder, true);
 if (_useMipMapping) MipmapGenerator.generateMipMaps(_bitmapData, texture, _mipMapHolder, true);
 else Texture(texture).uploadFromBitmapData (_bitmapData, 0);
} 

View3D background mipmapping Software: Away3D 4.x

ricovitch, Newbie Posted: 24 January 2013 10:32 AM Total Posts: 22 Hello, I’m using View3D background for an augmented reality application, uploading on each frame the current webcam image to the background texture. I just noticed that it uses mipmapping, and there don’t seem to be a way to force not using it for the background texture. This texture upload has a cost in terms of performances (especially on mobile devices), and i can’t see why we would like to use mipmapping for the background texture. Maybe i’m missing something ? Is there a way to force the background texture to no mipmap generation ?
ricovitch, Newbie Posted: 24 January 2013 11:23 AM Total Posts: 22 [ # 1 ] Here is a patch i tested on BitmapTexture class to add a useMipMapping parameter : (which i set to false on background texture) // @Patch private var _useMipMapping:Boolean = true; //public function BitmapTexture(bitmapData : BitmapData) public function BitmapTexture(bitmapData : BitmapData, useMipMapping:Boolean = true) { super(); this.bitmapData = bitmapData; _useMipMapping = useMipMapping; } override protected function uploadContent(texture : TextureBase) : void { // @Patch // MipmapGenerator.generateMipMaps(_bitmapData, texture, _mipMapHolder, true); if (_useMipMapping) MipmapGenerator.generateMipMaps(_bitmapData, texture, _mipMapHolder, true); else Texture(texture).uploadFromBitmapData (_bitmapData, 0); }

View3D background mipmapping

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