diff --git a/units/Graf3DScene/Graf3DPrimitives.pas b/units/Graf3DScene/Graf3DPrimitives.pas
index c178a29..a6e46ed 100644
--- a/units/Graf3DScene/Graf3DPrimitives.pas
+++ b/units/Graf3DScene/Graf3DPrimitives.pas
@@ -14,20 +14,35 @@ interface
  procedure SetCyl3D (var shape: Shape3D; x, y, z, w, h, d, r: Fixed);
  procedure SetPyramid3D (var shape: Shape3D; x, y, z, w, h, d, ax, az: Fixed);
 {parts}
+ procedure AddVertice3D (var shape: Shape3D; x, y, z: Fixed);
  procedure AddLink3D (var shape: Shape3D; a, b: Integer);
+ procedure AddFace3D (var shape: Shape3D; a, b, c: Integer);
  procedure AddTri3D (var shape: Shape3D; x, y, z, w, h: Fixed);
  procedure AddRect3D (var shape: Shape3D; x, y, z, w, h: Fixed);
  procedure AddCircle3D (var shape: Shape3D; x, y, z, r: Fixed);
 
 implementation
 
-{privates}
+ procedure AddVertice3D (var shape: Shape3D; x, y, z: Fixed);
+  var
+   voff: Integer; { vertices offset}
+ begin
+  shape.verticesLength := shape.verticesLength + 1;
+  SetPt3D(shape.vertices[shape.verticesLength], Long2Fix(x), Long2Fix(y), Long2Fix(z));
+ end;
+
  procedure AddLink3D (var shape: Shape3D; a, b: Integer);
  begin
   shape.length := shape.length + 1;
   SetLk3D(shape.edges[shape.length], @shape.vertices[a], @shape.vertices[b]);
  end;
 
+ procedure AddFace3D (var shape: Shape3D; a, b, c: Integer);
+ begin
+  shape.facesLength := shape.facesLength + 1;
+  SetFc3D(shape.faces[shape.facesLength], @shape.vertices[a], @shape.vertices[b], @shape.vertices[c]);
+ end;
+
  procedure AddTri3D (var shape: Shape3D; x, y, z, w, h: Fixed);
   var
    voff, eoff, foff: Integer; { vertices offset}
diff --git a/units/Graf3DScene/Graf3DScene.pas b/units/Graf3DScene/Graf3DScene.pas
index 69f0669..ef48f18 100644
--- a/units/Graf3DScene/Graf3DScene.pas
+++ b/units/Graf3DScene/Graf3DScene.pas
@@ -151,7 +151,7 @@ implementation
   LineTo3D(face.c^.X, face.c^.Y, face.c^.Z);
   LineTo3D(face.a^.X, face.a^.Y, face.a^.Z);
   CloseRgn(tempRgn);
-  FillRgn(tempRgn, ltgray);
+  FillRgn(tempRgn, white);
   DisposeRgn(tempRgn);
  end;
 
@@ -182,9 +182,9 @@ implementation
   var
    i: Integer;
  begin
+{ DrawWidget(50); }
   for i := 1 to scene.length do
    DrawShape3D(scene.shapes[i]);
-  DrawWidget(50);
  end;
 
  procedure ClearScreen;
diff --git a/units/Graf3DScene/Graf3DStructures.pas b/units/Graf3DScene/Graf3DStructures.pas
index a208702..e162d1e 100644
--- a/units/Graf3DScene/Graf3DStructures.pas
+++ b/units/Graf3DScene/Graf3DStructures.pas
@@ -5,6 +5,9 @@ interface
   FixMath, Graf3D, Graf3DScene, Graf3DPrimitives;
 
  procedure SetStairs3D (var shape: Shape3D; x, y, z, w, h, d: Fixed);
+ procedure SetDoorway3D (var shape: Shape3D; x, y, z, w, h, d: Fixed);
+ procedure SetDoorwayWall3D (var shape: Shape3D; x, y, z, w, h, d: Fixed);
+ procedure SetParticles3D (var shape: Shape3D; x, y, z, w, h, d: Fixed);
 
 implementation
 
@@ -13,12 +16,82 @@ implementation
    hq: Fixed;
  begin
   hq := FixDiv(h, 4);
+  AddRect3D(shape, x, y - h + FixMul(hq div 2, 5), z + d - FixMul(hq, 2), w, h div 4);
+  AddRect3D(shape, x, y - h + FixMul(hq div 2, 7), z + d - FixMul(hq, 3), w, h div 4);
+  AddRect3D(shape, x, y - h + FixMul(hq div 2, 9), z + d - FixMul(hq, 4), w, h div 4);
+  AddRect3D(shape, x, y - h + FixMul(hq div 2, 11), z + d - FixMul(hq, 5), w, h div 4);
+  AddLink3D(shape, 4, 7);
+  AddLink3D(shape, 1, 6);
+  AddLink3D(shape, 8, 11);
+  AddLink3D(shape, 5, 10);
+  AddLink3D(shape, 12, 15);
+  AddLink3D(shape, 9, 14);
+{last step}
+  AddVertice3D(shape, x - w div 2, y + h div 2, z - d div 2);
+  AddVertice3D(shape, x + w div 2, y + h div 2, z - d div 2);
+  AddLink3D(shape, 16, 17);
+  AddLink3D(shape, 13, 18);
+{sides}
+  AddVertice3D(shape, x - w div 2, y - h div 2, z - d div 2);
+  AddVertice3D(shape, x + w div 2, y - h div 2, z - d div 2);
+  AddLink3D(shape, 17, 19);
+  AddLink3D(shape, 18, 20);
+  AddLink3D(shape, 19, 3);
+  AddLink3D(shape, 20, 2);
+ end;
 
-  AddRect3D(shape, x, y - h div 2, z + d div 4, w, h div 4);
-  AddRect3D(shape, x, y - h div 2 + FixMul(hq, 1), z + d div 4 - FixMul(hq, 1), w, h div 4);
-  AddRect3D(shape, x, y - h div 2 + FixMul(hq, 2), z + d div 4 - FixMul(hq, 2), w, h div 4);
-  AddRect3D(shape, x, y - h div 2 + FixMul(hq, 3), z + d div 4 - FixMul(hq, 3), w, h div 4);
+ procedure SetDoorway3D (var shape: Shape3D; x, y, z, w, h, d: Fixed);
+ begin
+{ frame }
+  AddVertice3D(shape, x - w div 2, y - h div 2, z);
+  AddVertice3D(shape, x - w div 2, y + h div 4, z);
+  AddVertice3D(shape, x, y + h div 2, z);
+  AddVertice3D(shape, x + w div 2, y + h div 4, z);
+  AddVertice3D(shape, x + w div 2, y - h div 2, z);
+  AddLink3D(shape, 1, 2);
+  AddLink3D(shape, 2, 3);
+  AddLink3D(shape, 3, 4);
+  AddLink3D(shape, 4, 5);
+  AddLink3D(shape, 1, 5);
+ end;
 
+ procedure SetDoorwayWall3D (var shape: Shape3D; x, y, z, w, h, d: Fixed);
+ begin
+{ frame }
+  AddVertice3D(shape, x - w div 2, y - h, z);
+  AddVertice3D(shape, x - w div 2, y + h div 4, z);
+  AddVertice3D(shape, x, y + h div 2, z);
+  AddVertice3D(shape, x + w div 2, y + h div 4, z);
+  AddVertice3D(shape, x + w div 2, y - h, z);
+  AddVertice3D(shape, x + w * 2, y - h div 2, z);{6}
+  AddVertice3D(shape, x + w * 2, y + h, z);{7}
+  AddVertice3D(shape, x - w * 2, y + h, z);{8}
+  AddVertice3D(shape, x - w * 2, y - h div 2, z);{9}
+  AddFace3D(shape, 4, 5, 6);
+  AddFace3D(shape, 4, 6, 7);
+  AddFace3D(shape, 3, 4, 7);
+  AddFace3D(shape, 3, 7, 8);
+  AddFace3D(shape, 2, 3, 8);
+  AddFace3D(shape, 2, 8, 9);
+  AddFace3D(shape, 1, 2, 9);
+ end;
+
+ procedure SetParticles3D (var shape: Shape3D; x, y, z, w, h, d: Fixed);
+  var
+   i: Integer;
+   rx, ry, rz: Fixed;
+ begin
+{ frame }
+
+  for i := 1 to 20 do
+   begin
+    rx := FracMul(Fix2Frac(Random), w);
+    ry := FracMul(Fix2Frac(Random), h);
+    rz := FracMul(Fix2Frac(Random), z);
+    AddVertice3D(shape, x + rx, y + ry, z + rz);
+    AddVertice3D(shape, x + rx, y + ry + 2, z + rz);
+    AddLink3D(shape, i * 2 - 1, i * 2);
+   end;
  end;
 
 end.
\ No newline at end of file
diff --git a/units/Graf3DScene/main.pas b/units/Graf3DScene/main.pas
index 32486b0..e658afa 100644
--- a/units/Graf3DScene/main.pas
+++ b/units/Graf3DScene/main.pas
@@ -8,9 +8,9 @@ program ExampleScene;
   wed2, box2, cyl2: Shape3D;
 
   wed1, box1, cyl1: Shape3D;
-  tri1, rec1, cir1: Shape3D;
+  rec2, rec1, cir1: Shape3D;
 
-  sta1: Shape3D;
+  sta1, dwy1, dwy2, dwy3, dww1, prt1: Shape3D;
 
 begin
 
@@ -19,13 +19,36 @@ begin
  SetScene3D(scene);
 
  SetWedge3D(wed1, -100, 0, -100, 100, 100, 100);
- SetBox3D(box1, 0, 0, -100, 100, 100, 100);
+ SetBox3D(box1, 0, 0, 0, 100, 100, 100);
  SetCyl3D(cyl1, 100, 0, -100, 100, 100, 100, 50);
 
- SetStairs3D(sta1, 0, 0, 0, 100, 100, 100);
+ SetStairs3D(sta1, 0, -100, 0, 100, 100, 100);
+ SetDoorway3D(dwy1, 0, 50, -50, 100, 200, 100);
+ SetDoorway3D(dwy2, 0, 50, -150, 100, 200, 100);
+ SetDoorway3D(dwy3, 0, 50, -200, 100, 200, 100);
+ SetDoorwayWall3D(dww1, 0, 50, -50, 100, 200, 100);
+ SetParticles3D(prt1, 0, 0, 100, 600, 300, 300);
 
+ SetRect3D(rec1, 0, -150, -50, 100, 200);
+ SetRect3D(rec2, 0, 200, -150, 100, 300);
+ SetCircle3D(cir1, 0, 75, -50, 30);
+
+ AddShape3D(scene, @rec1);
+ AddShape3D(scene, @dwy3);
+ AddShape3D(scene, @dwy2);
+
+ TurnXShape3D(@rec1);
+ TurnXShape3D(@rec2);
+
+ AddShape3D(scene, @dww1);
+ AddShape3D(scene, @dwy1);
+ AddShape3D(scene, @cir1);
  AddShape3D(scene, @sta1);
 
+ AddShape3D(scene, @rec2);
+
+ AddShape3D(scene, @prt1);
+
  InitWindow;
 
 end.
\ No newline at end of file