public void DrawTriangle(Vector2Int[] points, Line.LineType lineType)
{
for (int i = 0; i < points.Length; i++)
{
Vector2Int v1 = points[i];
Vector2Int v2 = points[(i + 1) % 3];
DrawLine(v1, v2, lineType);
}
}
public void DrawPolygonWithTex(Polygon polygon, Line.LineType lineType)
{
Vector2Int[] points = new Vector2Int[3];
for (int i = 0; i < polygon.Vertices.Length; i++)
{
Vector3 v3 = _shader.OnVertex(polygon, i);
v3 /= v3.Z;
points[i] = new Vector2Int(Convert.ToInt32(v3.X), Convert.ToInt32(v3.Y));
}
FillTriangleWithTex(points, polygon);
}
public void DrawPolygon(Polygon polygon, float intensity, Line.LineType lineType)
{
byte gray = (byte)(intensity * 255);
SetColor(Color.FromArgb(255, gray, gray, gray));
Vector2Int[] points = new Vector2Int[3];
for (int i = 0; i < polygon.Vertices.Length; i++)
{
Vector3 v3 = _shader.OnVertex(polygon, i);
v3 /= v3.Z;
points[i] = new Vector2Int(Convert.ToInt32(v3.X), Convert.ToInt32(v3.Y));
}
//DrawTriangle(points, lineType);
FillTriangle(points, polygon);
//FillTriangle(points);
//FillTriangle2(points);
}
public void DrawMesh(Mesh mesh, Line.LineType lineType)
{
_depth = mesh.Polygons.Max(p => p.Vertices.Max(v => v.Z)) -
mesh.Polygons.Min(p => p.Vertices.Min(v => v.Z));
_texture = new BitmapLock(mesh.Texture, ImageLockMode.ReadOnly);
if (_cameraType == CameraType.Perspective)
{
_viewport = GetViewport();
_view = LookAt(new Vector3(-0.2f, 0.3f, 0), new Vector3(0.5f, 1, 0));
}
_shader = new GouraudVertexShader(_lightDirection)
{
View = _view,
Viewport = _viewport
};
foreach (Polygon polygon in mesh.Polygons)
{
for (int i = 0; i < polygon.Vertices.Length; i++)
{
polygon.Vertices[i] = TransformVector(polygon.Vertices[i]);
}
float intensity = 0f;
if (IsPolygonShouldBeDrawn(polygon, out intensity))
{
if (polygon.UVs.Length == 0)
{
DrawPolygon(polygon, intensity, lineType);
}
else
{
DrawPolygonWithTex(polygon, lineType);
}
}
}
}
public void DrawLine(Vector2Int @from, Vector2Int to, Line.LineType type)
{
DrawLine(new Line(@from, to, type));
}
