mesh.Begin
From GMod Wiki
| Function | |
| Syntax |
mesh.Begin( Enum Primitive Type, Number Primitive Number ) Where is this used? |
| Description: | |
| Starts the process of defining a mesh. Must be finished with an accompanying call to mesh.End. This function should be called in the same places that the render functions are called; in an entity's Draw function, etc. | |
| Returns: | nil |
| Part of Library: | mesh |
| Realm: |
 |
| BBCode Link: | [b][url=http://wiki.garrysmod.com/?title=Mesh.Begin]Mesh.Begin [img]http://wiki.garrysmod.com/favicon.ico[/img][/url][/b] |
Examples
| Description | Draws a single triangle with one vertex at the entity's origin |
|---|---|
| Used on | |
| Code | local mat_debugwhite = Material( "models/debug/debugwhite" ); function ENT:Draw() self:DrawModel(); local mat = Matrix(); mat:Translate( self:GetPos() ); mat:Rotate( self:GetAngles() ); mat:Scale( Vector( 1, 1, 1 ) * 64 ); render.SetMaterial( mat_debugwhite ); cam.PushModelMatrix( mat ); mesh.Begin( MATERIAL_TRIANGLES, 1 ); --mesh.Begin( MATERIAL_LINE_LOOP, 3 ); mesh.Position( Vector( 0, 0, 0 ) ); mesh.Normal( Vector( 0, 0, 1 ) ); mesh.AdvanceVertex(); mesh.Position( Vector( 0, 1, 0 ) ); mesh.Normal( Vector( 0, 0, 1 ) ); mesh.AdvanceVertex(); mesh.Position( Vector( 0, 0, 1 ) ); mesh.Normal( Vector( 0, 0, 1 ) ); mesh.AdvanceVertex(); mesh.End(); cam.PopModelMatrix(); end |
| Output | A triangle that rotates with the entity it is being drawn on. |
Additional Notes
CLIENT | 0000000000000000 | 00000000000000000 | MATERIAL_POINTS CLIENT | 0000000000000001 | 00000000000000001 | MATERIAL_LINES CLIENT | 0000000000000002 | 00000000000000010 | MATERIAL_TRIANGLES CLIENT | 0000000000000003 | 00000000000000011 | MATERIAL_TRIANGLE_STRIP CLIENT | 0000000000000004 | 00000000000000100 | MATERIAL_LINE_STRIP CLIENT | 0000000000000005 | 00000000000000101 | MATERIAL_LINE_LOOP CLIENT | 0000000000000006 | 00000000000000110 | MATERIAL_POLYGON CLIENT | 0000000000000007 | 00000000000000111 | MATERIAL_QUADS
- If you make a call to a mesh function that results in an error, your view may become quite messed up; things will render wrong, the skybox will go berserk, etc. In this case, you'll need to restart Garry's Mod to return to normal.
- It may be easier to use the cam library functions to position, rotate, and scale your mesh, rather than trying to calculate it yourself.
