public void DrawTriangle(Vertex v1, Vertex v2, Vertex v3, MeshLightParameters lightParameters)
{
// Sorting the points in order to always have this order on screen p1, p2 & p3
// with p1 always up (thus having the Y the lowest possible to be near the top screen)
// then p2 between p1 & p3
if (v1.Coordinates.Y > v2.Coordinates.Y)
{
var temp = v2;
v2 = v1;
v1 = temp;
}
if (v2.Coordinates.Y > v3.Coordinates.Y)
{
var temp = v2;
v2 = v3;
v3 = temp;
}
if (v1.Coordinates.Y > v2.Coordinates.Y)
{
var temp = v2;
v2 = v1;
v1 = temp;
}
Vector3 p1 = v1.Coordinates;
Vector3 p2 = v2.Coordinates;
Vector3 p3 = v3.Coordinates;
DetailsForShading details = shadingMachine.GetDetailsForShading(v1, v2, v3);
// computing lines' directions
float dP1P2, dP1P3;
// http://en.wikipedia.org/wiki/Slope
// Computing slopes
if (p2.Y - p1.Y > 0)
{
dP1P2 = (p2.X - p1.X) / (p2.Y - p1.Y);
}
else
{
dP1P2 = 0;
}
if (p3.Y - p1.Y > 0)
{
dP1P3 = (p3.X - p1.X) / (p3.Y - p1.Y);
}
else
{
dP1P3 = 0;
}
// First case where triangles are like that:
// P1
// -
// --
// - -
// - -
// - - P2
// - -
// - -
// -
// P3
if (dP1P2 > dP1P3)
{
for (var y = (int)p1.Y; y <= (int)p3.Y; y++)
{
//data.currentY = y;
details.currentY = y;
if (y < p2.Y)
{
details.pa = v1.Coordinates;
details.pb = v3.Coordinates;
details.pc = v1.Coordinates;
details.pd = v2.Coordinates;
//ProcessScanLine(data, v1, v3, v1, v2, details.globalColor);
ProcessScanLine(details);
}
else
{
details.pa = v1.Coordinates;
details.pb = v3.Coordinates;
details.pc = v2.Coordinates;
details.pd = v3.Coordinates;
// ProcessScanLine(data, v1, v3, v2, v3, details.globalColor);
ProcessScanLine(details);
}
}
}
// First case where triangles are like that:
// P1
// -
// --
// - -
// - -
// P2 - -
// - -
// - -
// -
// P3
else
{
for (var y = (int)p1.Y; y <= (int)p3.Y; y++)
{
//data.currentY = y;
details.currentY = y;
if (y < p2.Y)
{
details.pa = v1.Coordinates;
details.pb = v2.Coordinates;
details.pc = v1.Coordinates;
details.pd = v3.Coordinates;
//ProcessScanLine(data, v1, v2, v1, v3, details.globalColor);
ProcessScanLine(details);
}
else
{
details.pa = v2.Coordinates;
details.pb = v3.Coordinates;
details.pc = v1.Coordinates;
details.pd = v3.Coordinates;
// ProcessScanLine(data, v2, v3, v1, v3, details.globalColor);
ProcessScanLine(details);
}
}
}
}
public Form1()
{
InitializeComponent();
//Main window settings
this.MinimumSize = this.Size;
this.MaximumSize = this.Size;
this.MaximizeBox = false;
this.StartPosition = FormStartPosition.CenterScreen;
//render device initialize
device = new Device(pictureBox1.Width, pictureBox1.Height);
//camera section
staticCamera.Position = new Vector3(3, 6, 15);
staticCamera.Target = Vector3.Zero;
followingCamera.Position = new Vector3(-5, 7, 20);
followingCamera.Target = Vector3.Zero;
dynamicCamera.Position = new Vector3(0, 0, 0);
dynamicCamera.Target = new Vector3(0, 0, -6);
//initialize objects on the scene
//monkey
Mesh monkey = device.LoadJSONFileAsync("monkey.babylon");
MeshLightParameters monkeyLightParameters = new MeshLightParameters(Color.Red, 0.4f, 0.7f, 0.9f, 32);
monkey.lightParameters = monkeyLightParameters;
monkey.Rotation = new Vector3(0, 0, 0);
monkey.RotationStep = new Vector3(0, 0.05f, 0);
PositionCalculator monkeyCalculator = new PositionCalculator();
Calculator xc = new Calculator(-3, 2.5f, 0, 0.05f);
Calculator bc = new Calculator();
monkeyCalculator.XCalculator = xc;
monkeyCalculator.YCalculator = bc;
monkeyCalculator.ZCalculator = bc;
monkey.positionCalculator = monkeyCalculator;
monkey.Scale = Vector3.One;
meshes.Add(monkey);
//cube
Mesh cube = device.LoadJSONFileAsync("cube1.babylon");
MeshLightParameters cube1LightParameters = new MeshLightParameters(Color.Gray, 0.9f, 0.8f, 0.9f, 60);
cube.lightParameters = cube1LightParameters;
cube.Rotation = new Vector3(0, 0.4f, 0);
cube.RotationStep = new Vector3(0, 0, 0);
PositionCalculator cubeCalculator = new PositionCalculator();
Calculator xc2 = new Calculator(0, 5.1f, 5, 0);
cubeCalculator.XCalculator = xc2;
cubeCalculator.YCalculator = bc;
cubeCalculator.ZCalculator = bc;
cube.positionCalculator = cubeCalculator;
cube.Scale = Vector3.One;
meshes.Add(cube);
//sphere
Mesh sphere = device.LoadJSONFileAsync("sphere.babylon");
MeshLightParameters sphereLightParameters = new MeshLightParameters(Color.Gray, 0.9f, 0.8f, 0.9f, 32);
sphere.lightParameters = sphereLightParameters;
sphere.Rotation = new Vector3(0, 0.4f, 0);
sphere.RotationStep = new Vector3(0, 0, 0);
PositionCalculator sphereCalculator = new PositionCalculator();
Calculator xc3 = new Calculator(-6.1f, 0, -6, 0);
sphereCalculator.XCalculator = xc3;
sphereCalculator.YCalculator = bc;
sphereCalculator.ZCalculator = bc;
sphere.positionCalculator = sphereCalculator;
sphere.Scale = Vector3.One;
meshes.Add(sphere);
//cylinder
Mesh cylinder = device.LoadJSONFileAsync("cylinder.babylon");
MeshLightParameters cylinderLightParameters = new MeshLightParameters(Color.Green, 0.9f, 0.8f, 0.9f, 32);
cylinder.lightParameters = cylinderLightParameters;
cylinder.Rotation = new Vector3(0, 0, 0);
cylinder.RotationStep = new Vector3(0, 0, 0);
PositionCalculator cylinderCalculator = new PositionCalculator();
Calculator zc = new Calculator(0, -5.1f, -5, 0);
cylinderCalculator.XCalculator = bc;
cylinderCalculator.YCalculator = bc;
cylinderCalculator.ZCalculator = zc;
cylinder.positionCalculator = cylinderCalculator;
cylinder.Scale = Vector3.One;
meshes.Add(cylinder);
//floor
floor = device.LoadJSONFileAsync("floor.babylon");
MeshLightParameters floorLightParameters = new MeshLightParameters(Color.Black, 0.9f, 0.8f, 0.9f, 32);
floor.lightParameters = floorLightParameters;
floor.Rotation = new Vector3(0, 0, 0);
floor.RotationStep = new Vector3(0, 0, 0);
PositionCalculator floorCalculator = new PositionCalculator();
floorCalculator.XCalculator = bc;
floorCalculator.YCalculator = bc;
floorCalculator.ZCalculator = bc;
floor.positionCalculator = floorCalculator;
floor.Scale = new Vector3(1.1f, 1.5f, 1);
floor.ProjectCoordinatesTransform = new Vector3(0, 0, 1);
meshes.Add(floor);
//light sources initialize
LightSource reflector1 = new LightSource()
{
color = Color.Yellow,
Position = new Vector3(-6, 4, 2),
Direction = new Vector3(0, -1, 0),
CosLightAngle = 0.5f
};
LightSource reflector2 = new LightSource()
{
color = Color.Red,
Position = new Vector3(5.5f, 3, 0),
Direction = new Vector3(0, -1, 0),
CosLightAngle = 0.2f
};
LightSource globalLight = new LightSource()
{
color = Color.White,
Position = new Vector3(0, 100000, 0),
Direction = new Vector3(0, -1, 0),
CosLightAngle = -1f
};
LightsManager lightsManager = new LightsManager(0.5f);
lightsManager.AddLightSource(reflector1);
lightsManager.AddLightSource(reflector2);
lightsManager.AddLightSource(globalLight);
//lightsManager.AddLightSource(new LightSource() { color = Color.Yellow, Position = new Vector3(-5, 3, 0), Direction = new Vector3(-0.6f, -0.8f, 0), CosLightAngle = 0.5f });
device.lightsManager = lightsManager;
//default settings
radioButtonCameraStatic.Checked = true;
device.shadingMachine = new FlatShadingMachine();
device.shadingMachine.fogMachine = new NoFogMachine();
radioButtonFogDisabled.Checked = true;
//start rendering
SetTimer();
}
