public void Clear()
{
for (Int32 PixelY = 0; PixelY < Height; ++PixelY)
{
for (Int32 PixelX = 0; PixelX < Width; ++PixelX)
{
Pixels[PixelY * Width + PixelX] = new H1Color(0, 0, 0, 1);
}
}
}
public H1RenderTarget(Int32 InWidth, Int32 InHeight)
{
Width = InWidth;
Height = InHeight;
// allocate pixels in screen
Pixels = new H1Color[Width * Height];
// clear the render target
Clear();
}
public bool Render()
{
H1Entity CameraObject = new H1Entity();
H1RayTracerCameraComponent RayTracerCameraComponent = new H1RayTracerCameraComponent(CameraObject);
Int32 ResolutionX = BackBuffer.Width;
Int32 ResolutionY = BackBuffer.Height;
H1Vector3 Direction = H1Vector3.Normalize(new H1Vector3(0, 1, -1));
RayTracerCameraComponent.UpdateCamera(new H1Vector3(0, 0, 500), Direction);
RayTracerCameraComponent.SetViewFrustum(100, 1000, (float)(30.0 / Math.PI), ResolutionX, ResolutionY);
// test ray tracer component entity
H1RayTracerComponent OneComponent = new H1RayTracerComponent(CameraObject);
OneComponent.Activate();
float Extent = 25.0f;
OneComponent.CreateBoxBound(new H1Vector3(0, 500, 0), new H1Vector3(Extent, Extent, Extent));
H1Ray Ray = new H1Ray(new H1Vector3(0, 0, 500), Direction);
float T0, T1;
bool bCollide = OneComponent.IsCollide(Ray, out T0, out T1);
H1Ray[] Rays = RayTracerCameraComponent.GenerateRays();
H1RayTracerSystem.Singleton.RayCast(Rays, ref BackBuffer);
Bitmap NewBitmap = new Bitmap(ResolutionX, ResolutionY);
for (Int32 PixelY = 0; PixelY < ResolutionY; ++PixelY)
{
for (Int32 PixelX = 0; PixelX < ResolutionX; ++PixelX)
{
H1Color PixelColor = BackBuffer[PixelX, PixelY];
Color OutColor = Color.FromArgb(PixelColor.A, PixelColor.R, PixelColor.G, PixelColor.B);
NewBitmap.SetPixel(PixelX, PixelY, OutColor);
}
}
NewBitmap.Save("RayTracerOutput.png", ImageFormat.Png);
return(true);
}
public void RayCast(H1Ray[] InRays, ref H1RenderTarget OutRenderTarget)
{
Int32 Index = 0;
foreach (H1Ray Ray in InRays)
{
float T0 = float.MaxValue;
foreach (H1RayTracerComponent Component in RayTracerComponents)
{
float CurrT0, CurrT1;
if (Component.IsCollide(Ray, out CurrT0, out CurrT1))
{
if (T0 > CurrT0)
{
OutRenderTarget[Index] = new H1Color(1, 0, 0, 1);
T0 = CurrT0;
}
}
}
Index++;
}
}
