public PointDrawingAlgorithm(
Bitmap workingBitmap,
ZBuffer zBuffer)
{
this.workingBitmap = workingBitmap;
this.zBuffer = zBuffer;
}
public void Render(Camera camera, Bitmap bmp, IEnumerable <LightSource> lightSources, params Mesh[] meshes)
{
workingBitmap = bmp;
zBuffer = new ZBuffer(workingBitmap.Size.Width, workingBitmap.Size.Height);
pointDrawingAlgorithm = new PointDrawingAlgorithm(workingBitmap, zBuffer);
var viewMatrix = MatrixPrefabs.LookAtLeftHanded(camera.Position, camera.Target, Vector3Prefabs.UnitY);
var projectionMatrix = MatrixPrefabs.PerspectiveFieldOfViewRightHanded(
0.78f,
(float)workingBitmap.Size.Width / workingBitmap.Size.Height,
0.01f,
1.0f);
foreach (Mesh mesh in meshes)
{
var worldMatrix = MatrixPrefabs.RotationMatrixYawPitchRoll(
mesh.Rotation.Y,
mesh.Rotation.X,
mesh.Rotation.Z) *
MatrixPrefabs.TranslationMatrix(mesh.Position);
var transformMatrix = worldMatrix * viewMatrix * projectionMatrix;
foreach (var face in mesh.Faces)
{
var vertexA = mesh.Vertices[face.A];
var vertexB = mesh.Vertices[face.B];
var vertexC = mesh.Vertices[face.C];
var vertexATransformed = Project(vertexA, transformMatrix, worldMatrix);
var vertexBTransformed = Project(vertexB, transformMatrix, worldMatrix);
var vertexCTransformed = Project(vertexC, transformMatrix, worldMatrix);
//DrawLine(pixelA, pixelB, vertexA.Color, vertexB.Color);
//DrawLine(pixelB, pixelC, vertexB.Color, vertexC.Color);
//DrawLine(pixelC, pixelA, vertexC.Color, vertexA.Color);
//DrawLineBresenham(pixelA, pixelB, vertexA.Color, vertexB.Color);
//DrawLineBresenham(pixelB, pixelC, vertexB.Color, vertexC.Color);
//DrawLineBresenham(pixelC, pixelA, vertexC.Color, vertexA.Color);
DrawTriangle(vertexATransformed, vertexBTransformed, vertexCTransformed, lightSources);
}
}
}