Jump to content
  • Advertisement

Archived

This topic is now archived and is closed to further replies.

jamesadam

accessing mesh details (dx8) - help

This topic is 6304 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

hi there, I am trying to access the vertex/uv/face/material information that is loaded with the D3DXLoadMeshFromX( command from directx 8. I know generally that I need to lock the buffers to get any info out and have used num_vertex:=loadedmesh.GetNumVertices; num_faces:=loadedmesh.GetNumFaces; to get the number of vertexes/faces etc. I also know it hinges on loadedmesh.GetVertexBuffer(vb); etc, but I am having terrible trouble getting any further. I am coding in delphi 5 with the directx 8 sdk. I can load/display etc, but really want to access the actual mesh details. Anyone know how to acieve this? James

Share this post


Link to post
Share on other sites
Advertisement
I haven''t actually done this but this should work:

Assuming you have

vb_array : array[suitable size] of TCustomVertex
vb : The actual vertex buffer
pt : PByte pointer

vb.Lock(.., pt, ..)

Locks the vertex buffer... pt now points to the start of the buffer.

Move(vb_array, pt, number_of_bytes) // or something like that

move the data that pt shows to into your vb_array

now you can manipulate it and then (if necessary) copy the results back.

Don''t forget to unlock!!

-------

Alternatively

PVB : Pointer to Array of TCustomVertex

vb.Lock(.., pt, ..);
PVB := pt;

now you can use PVB as if it was your array of vertex data.

Again... don''t forget to unlock afterwards.



G''LuCk!
Henri

Share this post


Link to post
Share on other sites

  • Advertisement
×

Important Information

By using GameDev.net, you agree to our community Guidelines, Terms of Use, and Privacy Policy.

We are the game development community.

Whether you are an indie, hobbyist, AAA developer, or just trying to learn, GameDev.net is the place for you to learn, share, and connect with the games industry. Learn more About Us or sign up!

Sign me up!