مقدار ambient يک کد هگزا RRGGBB است .
بعد از دستورات فوق ماتريسهاي matworld ، matview و matproj مطابق مطابل درس قبل تعريف مي شوند . پس از آن بايستي بافت مکعب را از درون فايل تصويري مورد نظرتان load کنيد :


Set CubeTexture = D3DX.CreateTextureFromFileEx(D3DDevice, yourfilename, 128, 128, D3DX_DEFAULT, 0, DispMode.Format, D3DPOOL_MANAGED, D3DX_FILTER_LINEAR, D3DX_FILTER_LINEAR, 0, ByVal 0, ByVal 0)x


حال بايستي تابع InitializeGeometry صدا زده شود و سپس تابع SetupLights فراخواني شوند . ابتدا به توضيح تابع InitializeGeometry مي پردازيم :


Private Function InitialiseGeometry() As Boolean


ابتدا يک بردار نرمال تعريف مي کنيم :


Dim vN As D3DVECTOR


سپس آرايه cube2 را با مقادير عددي پر مي کنيم . نرمالهاي تمام vertex ها را ابتدا با بردار
[0,0,0 ] تعريف مي کنيم . اين مقدا بعداً تغيير خواهد کرد :


Cube2(0) = CreateVertex(-1, -1, 1, 0, 0, 0, 0, 0)
Cube2(1) = CreateVertex(1, 1, 1, 0, 0, 0, 1, 1)
Cube2(2) = CreateVertex(-1, 1, 1, 0, 0, 0, 0, 1)
vN = GenerateTriangleNormals(Cube2(0), Cube2(1), Cube2(2))
Cube2(0).nx = vN.X: Cube2(0).ny = vN.Y: Cube2(0).nz = vN.Z
Cube2(1).nx = vN.X: Cube2(1).ny = vN.Y: Cube2(1).nz = vN.Z
Cube2(2).nx = vN.X: Cube2(2).ny = vN.Y: Cube2(2).nz = vN.Z


Cube2(3) = CreateVertex(1, 1, 1, 0, 0, 0, 1, 1)
Cube2(4) = CreateVertex(-1, -1, 1, 0, 0, 0, 0, 0)
Cube2(5) = CreateVertex(1, -1, 1, 0, 0, 0, 1, 0)
vN = GenerateTriangleNormals(Cube2(3), Cube2(4), Cube2(5))
Cube2(3).nx = vN.X: Cube2(3).ny = vN.Y: Cube2(3).nz = vN.Z
Cube2(4).nx = vN.X: Cube2(4).ny = vN.Y: Cube2(4).nz = vN.Z
Cube2(5).nx = vN.X: Cube2(5).ny = vN.Y: Cube2(5).nz = vN.Z

'Back
Cube2(6) = CreateVertex(-1, 1, -1, 0, 0, 0, 0, 1)
Cube2(7) = CreateVertex(1, 1, -1, 0, 0, 0, 1, 1)
Cube2(8) = CreateVertex(-1, -1, -1, 0, 0, 0, 0, 0)
vN = GenerateTriangleNormals(Cube2(6), Cube2(7), Cube2(8))
Cube2(6).nx = vN.X: Cube2(6).ny = vN.Y: Cube2(6).nz = vN.Z
Cube2(7).nx = vN.X: Cube2(7).ny = vN.Y: Cube2(7).nz = vN.Z
Cube2(8).nx = vN.X: Cube2(8).ny = vN.Y: Cube2(8).nz = vN.Z

Cube2(9) = CreateVertex(1, -1, -1, 0, 0, 0, 1, 0)
Cube2(10) = CreateVertex(-1, -1, -1, 0, 0, 0, 0, 0)
Cube2(11) = CreateVertex(1, 1, -1, 0, 0, 0, 1, 1)
vN = GenerateTriangleNormals(Cube2(9), Cube2(10), Cube2(11))
Cube2(9).nx = vN.X: Cube2(9).ny = vN.Y: Cube2(9).nz = vN.Z
Cube2(10).nx = vN.X: Cube2(10).ny = vN.Y: Cube2(10).nz = vN.Z
Cube2(11).nx = vN.X: Cube2(11).ny = vN.Y: Cube2(11).nz = vN.Z

'Right
Cube2(12) = CreateVertex(-1, -1, -1, 0, 0, 0, 0, 0)
Cube2(13) = CreateVertex(-1, 1, 1, 0, 0, 0, 1, 1)
Cube2(14) = CreateVertex(-1, 1, -1, 0, 0, 0, 1, 0)
vN = GenerateTriangleNormals(Cube2(12), Cube2(13), Cube2(14))
Cube2(12).nx = vN.X: Cube2(12).ny = vN.Y: Cube2(12).nz = vN.Z
Cube2(13).nx = vN.X: Cube2(13).ny = vN.Y: Cube2(13).nz = vN.Z
Cube2(14).nx = vN.X: Cube2(14).ny = vN.Y: Cube2(14).nz = vN.Z

Cube2(15) = CreateVertex(-1, 1, 1, 0, 0, 0, 1, 1)
Cube2(16) = CreateVertex(-1, -1, -1, 0, 0, 0, 0, 0)
Cube2(17) = CreateVertex(-1, -1, 1, 0, 0, 0, 0, 1)
vN = GenerateTriangleNormals(Cube2(15), Cube2(16), Cube2(17))
Cube2(15).nx = vN.X: Cube2(15).ny = vN.Y: Cube2(15).nz = vN.Z
Cube2(16).nx = vN.X: Cube2(16).ny = vN.Y: Cube2(16).nz = vN.Z
Cube2(17).nx = vN.X: Cube2(17).ny = vN.Y: Cube2(17).nz = vN.Z

'Left
Cube2(18) = CreateVertex(1, 1, -1, 0, 0, 0, 1, 0)
Cube2(19) = CreateVertex(1, 1, 1, 0, 0, 0, 1, 1)
Cube2(20) = CreateVertex(1, -1, -1, 0, 0, 0, 0, 0)
vN = GenerateTriangleNormals(Cube2(18), Cube2(19), Cube2(20))
Cube2(18).nx = vN.X: Cube2(18).ny = vN.Y: Cube2(18).nz = vN.Z
Cube2(19).nx = vN.X: Cube2(19).ny = vN.Y: Cube2(19).nz = vN.Z
Cube2(20).nx = vN.X: Cube2(20).ny = vN.Y: Cube2(20).nz = vN.Z

Cube2(21) = CreateVertex(1, -1, 1, 0, 0, 0, 0, 1)
Cube2(22) = CreateVertex(1, -1, -1, 0, 0, 0, 0, 0)
Cube2(23) = CreateVertex(1, 1, 1, 0, 0, 0, 1, 1)
vN = GenerateTriangleNormals(Cube2(21), Cube2(22), Cube2(23))
Cube2(21).nx = vN.X: Cube2(21).ny = vN.Y: Cube2(21).nz = vN.Z
Cube2(22).nx = vN.X: Cube2(22).ny = vN.Y: Cube2(22).nz = vN.Z
Cube2(23).nx = vN.X: Cube2(23).ny = vN.Y: Cube2(23).nz = vN.Z

'Top
Cube2(24) = CreateVertex(-1, 1, 1, 0, 0, 0, 0, 1)
Cube2(25) = CreateVertex(1, 1, 1, 0, 0, 0, 1, 1)
Cube2(26) = CreateVertex(-1, 1, -1, 0, 0, 0, 0, 0)
vN = GenerateTriangleNormals(Cube2(24), Cube2(25), Cube2(26))
Cube2(24).nx = vN.X: Cube2(24).ny = vN.Y: Cube2(24).nz = vN.Z
Cube2(25).nx = vN.X: Cube2(25).ny = vN.Y: Cube2(25).nz = vN.Z
Cube2(26).nx = vN.X: Cube2(26).ny = vN.Y: Cube2(26).nz = vN.Z

Cube2(27) = CreateVertex(1, 1, -1, 0, 0, 0, 1, 0)
Cube2(28) = CreateVertex(-1, 1, -1, 0, 0, 0, 0, 0)
Cube2(29) = CreateVertex(1, 1, 1, 0, 0, 0, 1, 1)
vN = GenerateTriangleNormals(Cube2(27), Cube2(28), Cube2(29))
Cube2(27).nx = vN.X: Cube2(27).ny = vN.Y: Cube2(27).nz = vN.Z
Cube2(28).nx = vN.X: Cube2(28).ny = vN.Y: Cube2(28).nz = vN.Z
Cube2(29).nx = vN.X: Cube2(29).ny = vN.Y: Cube2(29).nz = vN.Z

'Top
Cube2(30) = CreateVertex(-1, -1, -1, 0, 0, 0, 0, 0)
Cube2(31) = CreateVertex(1, -1, 1, 0, 0, 0, 1, 1)
Cube2(32) = CreateVertex(-1, -1, 1, 0, 0, 0, 0, 1)
vN = GenerateTriangleNormals(Cube2(30), Cube2(31), Cube2(32))
Cube2(30).nx = vN.X: Cube2(30).ny = vN.Y: Cube2(30).nz = vN.Z
Cube2(31).nx = vN.X: Cube2(31).ny = vN.Y: Cube2(31).nz = vN.Z
Cube2(32).nx = vN.X: Cube2(32).ny = vN.Y: Cube2(32).nz = vN.Z

Cube2(33) = CreateVertex(1, -1, 1, 0, 0, 0, 1, 1)
Cube2(34) = CreateVertex(-1, -1, -1, 0, 0, 0, 0, 0)
Cube2(35) = CreateVertex(1, -1, -1, 0, 0, 0, 1, 0)
vN = GenerateTriangleNormals(Cube2(33), Cube2(34), Cube2(35))
Cube2(33).nx = vN.X: Cube2(33).ny = vN.Y: Cube2(33).nz = vN.Z
Cube2(34).nx = vN.X: Cube2(34).ny = vN.Y: Cube2(34).nz = vN.Z
Cube2(35).nx = vN.X: Cube2(35).ny = vN.Y: Cube2(35).nz = vN.Z