Advertisement Jump to content
Sign in to follow this  

Mesh.Intersect Not Picking

This topic is 5074 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

If you intended to correct an error in the post then please contact us.

Recommended Posts

I have an interesting problem with mesh.intersect that I am helping someone can help me out with. I have a managed C# program that is building an array of meshes that it is displaying inside of a windows form. The meshes display just fine, but when I try to pick a mesh, I can only pick the last mesh that was added to the array. I can drag the meshes around inside of the form (translating them), and I can always pick the last mesh in the array no matter where it is in the form, but I cannot ever pick any of the other meshes in the array. Here is the picking code on the form: private void Pick() { System.Drawing.Point ptCursor = new Point (System.Windows.Forms.Cursor.Position.X, System.Windows.Forms.Cursor.Position.Y); ptCursor = this.PointToClient(ptCursor); Microsoft.DirectX.Vector3 vPickRayOrig = new Microsoft.DirectX.Vector3(ptCursor.X, ptCursor.Y, 0.0f); vPickRayOrig.Unproject(device.Viewport, device.Transform.Projection, device.Transform.View, device.Transform.World); Microsoft.DirectX.Vector3 vPickRayFar = new Microsoft.DirectX.Vector3(ptCursor.X, ptCursor.Y, 1.0f); vPickRayFar.Unproject(device.Viewport, device.Transform.Projection, device.Transform.View, device.Transform.World); vPickRayFar.Subtract(vPickRayOrig); int i = 0; foreach (cspanel panelx in panelArray) { Microsoft.DirectX.Direct3D.IntersectInformation hitInfo = new Microsoft.DirectX.Direct3D.IntersectInformation(); if(panelx.Pick(vPickRayFar, vPickRayOrig, ref hitInfo)) { i++; } } statusBar1.Text = string.Format("{0}\t", i); } and here is the Pick method from the panel class public bool Pick(Vector3 vPickRayFar, Vector3 vPickRayOrig, ref Microsoft.DirectX.Direct3D.IntersectInformation hitInfo) { if ( panelMesh.Intersect ( vPickRayOrig, vPickRayFar, out hitInfo ) == true) { return true; } else { return false; } } Can anyone help me out? I would really appreciate it as this problem has stumped me for two nights.

Share this post

Link to post
Share on other sites
Sign in to follow this  

  • Advertisement

Important Information

By using, you agree to our community Guidelines, Terms of Use, and Privacy Policy. is your game development community. Create an account for your GameDev Portfolio and participate in the largest developer community in the games industry.

Sign me up!