I only see the primitives one second

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1 comment, last by jor1980 14 years, 4 months ago
Hi i have created the next code that reads the data of a 3d eye from a file, but when i execute the code i only see the eye only one second.What is wrong? here is the code: Imports Microsoft.DirectX.Direct3D Imports Microsoft.DirectX Public Class Form1 Private device As Device Dim verticest As CustomVertex.PositionColoredTextured() = New CustomVertex.PositionColoredTextured(112) {} Dim indices As Short() = New Short(626) {} Public Sub Initialize() Dim Present As PresentParameters = New PresentParameters Present.Windowed = True Present.SwapEffect = SwapEffect.Discard device = New Device(0, DeviceType.Hardware, Me.Handle, CreateFlags.SoftwareVertexProcessing, Present) device.RenderState.Lighting = False End Sub Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Me.Text = "DirectX Tutorial using Visual Basic" Initialize() Me.Setstyle(Controlstyles.AllPaintingInWmPaint Or Controlstyles.Opaque, True) Dim nºarchivo As Integer = FreeFile() FileOpen(nºarchivo, My.Computer.FileSystem.SpecialDirectories.Desktop & "\ojo23d", OpenMode.Input) For i = 0 To 112 Dim dato As String dato = LineInput(nºarchivo) Dim Datoparts As String() Datoparts = Split(dato, " ") verticest(i).SetPosition(New Vector3(NumerosDecimales(Datoparts(0)), NumerosDecimales(Datoparts(1)), NumerosDecimales(Datoparts(2)))) verticest(i).Color = Color.Red.ToArgb verticest(i).Tu = (NumerosDecimales(dato(3))) verticest(i).Tv = (NumerosDecimales(dato(4))) Next For i = 0 To 208 Dim dato As String dato = LineInput(nºarchivo) Dim Datoparts As String() Datoparts = Split(dato, " ") indices(3 * i) = Datoparts(0) indices((3 * i) + 1) = Datoparts(1) indices((3 * i) + 2) = Datoparts(2) Next End Sub Private Sub Form1_OnPaint(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Me.Paint device.RenderState.CullMode = Cull.None device.Clear(ClearFlags.Target, Color.Black, 1, 0) Dim imagen As New Bitmap("C:\Users\Jorge\Desktop\ojo.bmp") Dim textura As New Texture(device, imagen, Usage.Dynamic, Pool.Default) device.MultiplyTransform(TransformType.Projection, Matrix.PerspectiveFovLH(Math.PI / 4, _ Me.Width / Me.Height, 1, 50)) device.MultiplyTransform(TransformType.World, Matrix.LookAtLH(New Vector3(0, 0, 30), New Vector3(0, 0, 0), New Vector3(0, 1, 0))) device.VertexFormat = CustomVertex.PositionColoredTextured.Format device.SetTexture(0, textura) device.BeginScene() device.DrawIndexedUserPrimitives(PrimitiveType.TriangleList, 0, 113, 209, indices, True, verticest) device.EndScene() device.Present() Me.Invalidate() End Sub
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Don't call Invalidate() in your OnPaint handler.
For the love of god, please tell me that you've just omitted your error checking code for brevity, and you don't really assume that all those functions succeed.
Quote:Original post by Cambo_frog
Don't call Invalidate() in your OnPaint handler.


you were right, now it works ok.

i put that sentence because i saw in a tutorial, but also put the next:

Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)

End Sub

but if i put that i only saw the things behind my form, Could you explain me way those sentences works?


Thank´s for all


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