void DetectFingers(Canvas canvas)
{
BoundingRect[] drawRects = GetCameraDrawBoxes();
fingersA = DetectFingersFromImage(canvas, cameraA.GetCameraImage());
fingersB = DetectFingersFromImage(canvas, cameraB.GetCameraImage());
fingerPairs = DetectFingerPairs();
ComputeDetectionPoints();
}
void UndistortCameraImages(Canvas canvas)
{
GraphicsDevice device = canvas.GetDevice();
undistortShader.SetupShader(canvas);
device.Textures[0] = cameraA.GetCameraImage();
device.SetPixelShaderConstant(0, new Vector4((float)DistortParamsA[0],
(float)DistortParamsA[1], (float)DistortParamsA[2], (float)DistortParamsA[3]));
device.SetPixelShaderConstant(1, new Vector4((float)CameraParamsA[0],
(float)CameraParamsA[1], (float)CameraParamsA[2], (float)CameraParamsA[3])
/ new Vector4(cameraA.Width, cameraA.Height, cameraA.Width, cameraA.Height));
DepthStencilBuffer dsOld = device.DepthStencilBuffer;
device.DepthStencilBuffer = canvas.GetDepthStencil();
device.SetRenderTarget(0, renderTarget);
CanvasPrimitives.Quad.Render(canvas);
device.SetRenderTarget(0, null);
device.DepthStencilBuffer = dsOld;
cameraAImage = renderTarget.GetTexture();
}