canvas3D.setOffScreenBuffer(buffer); canvas3D.renderOffScreenBuffer(); canvas3D.waitForOffScreenRendering();
offCanvas.waitForOffScreenRendering(); bImage = offCanvas.getOffScreenBuffer().getImage();
offScreenCanvas3D.setOffScreenBuffer(buffer); offScreenCanvas3D.renderOffScreenBuffer(); offScreenCanvas3D.waitForOffScreenRendering(); bImage = offScreenCanvas3D.getOffScreenBuffer().getImage();