// tick: renders one frame
public void Tick()
{
//Check if there are keys pressed
CheckMovement();
//Clear the screen and draw a line between the debugscreen and the raytracer
screen.Clear(0);
screen.Line(512, 0, 512, 512, 0xffffff);
//Shoot rays
for (int x = 0; x < camera.pixels.GetLength(0); x++)
for (int y = 0; y < camera.pixels.GetLength(1); y++)
{
//Make sure we only draw an apropriate amount of debugrays
if (y == 255 && x % 10 == 0)
debugRay = true;
screen.pixels[x + y * screen.width] = VectorToInt(ShootRay(camera.pixels[x, y], x, y, 0));
debugRay = false;
}
//Write suitable information on the screen
screen.Print("FOV = " + camera.fov, 517, 5, 0xffffff);
screen.Print("Camera Position = " + camera.origin.X + "; " + camera.origin.Y + "; " + camera.origin.Z + ";", 517, 25, 0xffffff);
screen.Print("Camera Direction = " + camera.direction.X + "; " + camera.direction.Y + "; " + camera.direction.Z + ";", 517, 45, 0xffffff);
screen.Print("Recursion = " + recursionMax + "; Debug recursion = " + debugRecusrionMax + ";", 517, 65, 0xffffff);
//Draw the debugscreen
DebugScreen(primitives, lights, camera, debugRays);
debugRays.Clear();
}
public void Tick()
{
screen.Print((DateTime.Now - lastframe).TotalMilliseconds.ToString(), 2, 30, 0xffffff);
lastframe = DateTime.Now;
screen.Print(camera.Position.ToString(), 2, 2, 0xffffff);
screen.Print(camera.FOV.ToString(), 2, 58, 0xffffff);
//camera.update();
if (Keyboard.GetState().IsKeyDown(Key.S))
{
camera.Position = camera.Position + new Vector3(0, -1f, 0);
}
if (Keyboard.GetState().IsKeyDown(Key.W))
{
camera.Position = camera.Position + new Vector3(0, 1f, 0);
}
if (Keyboard.GetState().IsKeyDown(Key.D))
{
camera.Position = camera.Position + new Vector3(1f, 0, 0);
}
if (Keyboard.GetState().IsKeyDown(Key.A))
{
camera.Position = camera.Position + new Vector3(-1f, 0, 0);
}
if (Keyboard.GetState().IsKeyDown(Key.Q))
{
camera.Position = camera.Position + new Vector3(0, 0, -1f);
}
if (Keyboard.GetState().IsKeyDown(Key.E))
{
camera.Position = camera.Position + new Vector3(0, 0, 1f);
}
if (Keyboard.GetState().IsKeyDown(Key.Z))
{
camera.FOV -= 0.1f;
}
if (Keyboard.GetState().IsKeyDown(Key.X))
{
camera.FOV += 0.1f;
}
if (Keyboard.GetState().IsKeyDown(Key.R))
{
Init();
}
if (Keyboard.GetState().IsKeyDown(Key.T))
{
scene = Scene.Multiballs();
}
if (Keyboard.GetState().IsKeyDown(Key.Y))
{
scene = Scene.Walls();
}
if (Keyboard.GetState().IsKeyDown(Key.G))
{
scene = Scene.ThreeBalls();
}
}
// tick: renders one frame
public void Tick()
{
screen.Clear(0);
render.Print("Dit is raytracer, niet game! Kusje, Laura", 2, 2, 0xffffff);
// geef camera weer op scherm
//debug.Box(camera.location[0], camera.location[2], camera.location[0] + 0.1f, camera.location[2] + 0.1f, CreateColor(255,255,255));
List <primitive> primitieven = scene.getprimitives();
int color;
int teller = 0;
foreach (primitive primitieve in primitieven)
{
if (teller > 3)
{
teller = 0;
}
switch (teller)
{
case 0:
color = CreateColor(255, 0, 0); // red
break;
case 1:
color = CreateColor(0, 255, 0); // green
break;
case 2:
color = CreateColor(0, 0, 255); // blue
break;
case 3:
color = CreateColor(255, 0, 255); // pink??
break;
default:
color = CreateColor(255, 255, 255); // white
break;
}
if (primitieve.GetType().Equals(typeof(plane)))
{
plane screenplane = (plane)primitieve;
// vanuit positie camera en richting camera en FOV (hoek) en afstand camera tot scherm
// (FOV is nu 90)
// bepaal je de lengte van het scherm.
float[] middenscreenplane = new float[3];
middenscreenplane = nieuwelocatie(camera.location, screenplane.distancetoorigin, camera.direction);
float lengtehalfscherm = (float)(Math.Tan(45) * screenplane.distancetoorigin);
float[] punt1 = nieuwelocatie(middenscreenplane, lengtehalfscherm, nieuwerichting(camera.direction, 1));
float[] punt2 = nieuwelocatie(middenscreenplane, lengtehalfscherm, nieuwerichting(camera.direction, 0));
debug.Line(0, punt1[2], punt2[0], punt2[2], CreateColor(0, 255, 0));
// op basis van de lengte van het scherm en de normaal (of de kijkrichting) bepaal je
// de uiterste punten van de plane, zowel x, y als z
// met x en z teken je de plane als een lijn op je scherm
//debug.Plane(plane.position,plane.width,plane.height, color);
teller++;
}
else if (primitieve.GetType().Equals(typeof(sphere)))
{
sphere bol = (sphere)primitieve;
debug.Circle(bol.position[0], bol.position[2], bol.radius, color);
teller++;
}
}
render.CopyTo(screen, 0, 0);
debug.CopyTo(screen, 512, 0);
// TODO teken hier de spheres: links in 3d en rechts in 2d bovenaanzicht
}
void DrawMSAA(Surface screen, Surface debugScreen)
{
if (MSAA > 64)
{
return;
}
Vector3 subScreenPoint;
Vector3 finalColor = new Vector3(0);
Ray ray = new Ray(Vector3.UnitX, Vector3.Zero);
Vector3 screenPoint;
Vector3 dir;
Vector3 screenHorz = camera.TopRight - camera.TopLeft; //Horizontal vector of the screen
Vector3 screenVert = camera.BottomLeft - camera.TopLeft; //Vertical vector of the screen
float horzStep = 1f / screen.width;
float vertStep = 1f / screen.height;
float msX = 0;
float msY = 0;
for (int y = yoffset; y < (yoffset + yjump); ++y, u = 0, v += vertStep, offset += screen.width)
{
for (int x = 0; x < screen.width; ++x, u += horzStep)
{
screenPoint = camera.TopLeft + u * screenHorz + v * screenVert; //Top left + u * horz + v * vert => screen point
dir = screenPoint - camera.Position;
finalColor = new Vector3(0);
msX = 0;
msY = 0;
for (int subY = 0; subY < msaaValue; subY++, msX = 0, msY += axisoffsetY)
{
for (int subX = 0; subX < msaaValue; subX++, msX += axisoffsetX)
{
subScreenPoint = new Vector3(screenPoint.X + msX, screenPoint.Y + msY, screenPoint.Z);
//subScreenPoint = screenPoint;
dir = subScreenPoint - camera.Position; //A vector from the camera to that screen point
ray = new Ray(dir.Normalized(), camera.Position); //Create a primary ray from there
//foreach (Primitive p in scene.Primitives)
// p.Intersect(ray); //Calculate the intersection with all the primitives
//byte i = (byte)(1024 / (ray.Intsect.Distance * ray.Intsect.Distance));
finalColor += ray.GetColor(scene);
//Console.WriteLine("InLoop: " +subScreenPoint + " : " + subColor + " : " + finalColor);
//Draw some rays on the debug screen
}
}
screen.pixels[x + offset] = CreateColor(finalColor * msaaFactor);
}
}
screen.Line(0, yoffset + yjump, screen.width, yoffset + yjump, 0xff00ff);
if (screen.height - yoffset > 64)
{
screen.Print("MSAAx" + MSAA.ToString(), screen.width / 2 - 20, yoffset + yjump + 2, 0xffffff);
}
if (yoffset < screen.height - yjump)
{
yoffset += yjump;
}
else
{
yoffset = 0;
u = 0;
v = 0;
offset = 0;
if (MSAA < 64)
{
MSAA = MSAA * 4;
}
}
}
public override void DrawDebug(Surface debugScreen)
{
debugScreen.Print("Ello", 20, 40, 0x000000);
DrawCircle(debugScreen, position.X, position.Z, radius, color);
base.DrawDebug(debugScreen);
}
