Garry's Mod Wiki

Home / History for mesh.Begin

Revision Difference

mesh.Begin#511532

<function name="Begin" parent="mesh" type="libraryfunc">⤶ <description>Starts a new dynamic mesh. If an <page>IMesh</page> is passed, it will use that mesh instead.</description>⤶ <realm>Client</realm>⤶ <args>⤶ <arg name="mesh" type="IMesh" default="nil">Mesh to build. This argument can be removed if you wish to build a &quot;dynamic&quot; mesh. See examples below.</arg>⤶ <arg name="primitiveType" type="number">Primitive type, see &lt;page&gt;MATERIAL&lt;/page&gt;.</arg>⤶ <arg name="primiteCount" type="number">The amount of primitives.</arg>⤶ </args>⤶ </function>⤶ ⤶ <example>⤶ <description>Draws a triangle near Vector( 0, 0, 0 ) in the map using a dynamic mesh.</description>⤶ <code>⤶ local mat = Material( "editor/wireframe" ) -- The material (a wireframe)⤶ ⤶ local verts = { -- A table of 3 vertices that form a triangle⤶ { pos = Vector( 0, 0, 0 ), u = 0, v = 0 }, -- Vertex 1⤶ { pos = Vector( 10, 0, 0 ), u = 1, v = 0 }, -- Vertex 2⤶ { pos = Vector( 10, 10, 0 ), u = 1, v = 1 }, -- Vertex 3⤶ }⤶ ⤶ hook.Add( "PostDrawOpaqueRenderables", "MeshLibTest", function()⤶ ⤶ render.SetMaterial( mat ) -- Apply the material⤶ mesh.Begin( MATERIAL_TRIANGLES, 1 ) -- Begin writing to the dynamic mesh⤶ for i = 1, #verts do⤶ mesh.Position( verts[i].pos ) -- Set the position⤶ mesh.TexCoord( 0, verts[i].u, verts[i].v ) -- Set the texture UV coordinates⤶ mesh.AdvanceVertex() -- Write the vertex⤶ end⤶ mesh.End() -- Finish writing the mesh and draw it⤶ end )⤶ </code>⤶ ⤶ </example>⤶ ⤶ ⤶ <example>⤶ <description>Draws a triangle near Vector( 0, 0, 0 ) in the map using a static mesh.</description>⤶ <code>⤶ local mat = Material( "editor/wireframe" ) -- The material (a wireframe)⤶ local obj = Mesh() -- Create the IMesh object⤶ ⤶ local verts = { -- A table of 3 vertices that form a triangle⤶ { pos = Vector( 0, 0, 0 ), u = 0, v = 0 }, -- Vertex 1⤶ { pos = Vector( 10, 0, 0 ), u = 1, v = 0 }, -- Vertex 2⤶ { pos = Vector( 10, 10, 0 ), u = 1, v = 1 }, -- Vertex 3⤶ }⤶ ⤶ mesh.Begin( obj, MATERIAL_TRIANGLES, 1 ) -- Begin writing to the static mesh⤶ for i = 1, #verts do⤶ mesh.Position( verts[i].pos ) -- Set the position⤶ mesh.TexCoord( 0, verts[i].u, verts[i].v ) -- Set the texture UV coordinates⤶ mesh.AdvanceVertex() -- Write the vertex⤶ end⤶ mesh.End() -- Finish writing to the IMesh⤶ ⤶ hook.Add( "PostDrawOpaqueRenderables", "MeshLibTest", function()⤶ ⤶ render.SetMaterial( mat ) -- Apply the material⤶ obj:Draw() -- Draw the mesh⤶ end )⤶ </code>⤶ ⤶ </example>

Account Management

Special Pages

Wiki List