Transparent Billboard

[Siebenschläfer]

Hello,

I tried to do the same as example 11 and make a billboard with a texture where all black parts are transparent, but it doesn't work, my bilboard is still black with the picture inside:

Code: Select all

	// draw scene in background
	scenePlane->render();

videoPlaneRight_node = Smgr->addBillboardSceneNode( 0, dimension2d<f32>( 380, 285 ), vector3df( 0,0,100 ));

	videoPlaneRight_node->setMaterialFlag( video::EMF_LIGHTING, false );
	videoPlaneRight_node->setMaterialFlag(video::EMF_ZWRITE_ENABLE, false);
	videoPlaneRight_node->setMaterialType(video::EMT_TRANSPARENT_ADD_COLOR);
	videoPlaneRight_node->setMaterialTexture( 0, Driver->getTexture("media/particlewhite.bmp") );

	ShadManager->flipTextureOnNodeVertically( videoPlaneRight_node );

	videoPlaneRight_node->render();

the rendering order should be fine, too. Did I forget some other trigger?

Cheers Siebenschläfer

[Cloudef]

You do not specify the colorkey for which color to make transparent?

[Siebenschläfer]

no because in the example there was no need to use it. Beside I also tried it with adding makeColorKeyTexture but it changed nothing.

[Siebenschläfer]

ok, obviously it was the matter of the rendering order... but now I get another problem:
if I build my scene and my billboard, give it the texture and draw it the way posted before the black is invisible. But unfortunately all the rest is transparent, too! But I want to have the black invisible and the rest clear visible.

Second try was with a solid billboard with a texture with makeColorKeyTexture for black. But this shows no effect. If the billboard is transparent I have the same problem like in the first case.

Any advises?