Revision Difference
cam.Start3D2D#514091
<function name="Start3D2D" parent="cam" type="libraryfunc">⤶
<description>⤶
Sets up a new 2D rendering context. Must be finished by <page>cam.End3D2D</page>. This function pushes a new matrix onto the stack. (<page>cam.PushModelMatrix</page>)⤶
⤶
<rendercontext hook="false" type="2D"/>⤶
<rendercontext hook="false" type="3D"/>⤶
</description>⤶
<realm>Client</realm>⤶
<args>⤶
<arg name="pos" type="Vector">Origin of the 3D2D context, ie. the top left corner, (0, 0).</arg>⤶
<arg name="angles" type="Angle">Angles of the 3D2D context.&amp;lt;br&amp;gt;
+x in the 2d context corresponds to +x of the angle (its forward direction).&amp;lt;br&amp;gt;
+y in the 2d context corresponds to -y of the angle (its right direction).

If (dx, dy) are your desired (+x, +y) unit vectors, the angle you want is dx:AngleEx(dx:Cross(-dy)).</arg>⤶
<arg name="scale" type="number">The scale of the render context.
If scale is 1 then 1 pixel in 2D context will equal to 1 unit in 3D context.</arg>⤶
</args>⤶
</function>⤶
⤶
<example>⤶
<code>⤶
hook.Add("PostDrawOpaqueRenderables", "example", function()⤶
local trace = LocalPlayer():GetEyeTrace()⤶
local angle = trace.HitNormal:Angle()⤶
⤶
render.DrawLine( trace.HitPos, trace.HitPos + 8 * angle:Forward(), Color( 255, 0, 0 ), true )⤶
render.DrawLine( trace.HitPos, trace.HitPos + 8 * -angle:Right(), Color( 0, 255, 0 ), true )⤶
render.DrawLine( trace.HitPos, trace.HitPos + 8 * angle:Up(), Color( 0, 0, 255 ), true )⤶
⤶
cam.Start3D2D( trace.HitPos, angle, 1 )⤶
surface.SetDrawColor( 255, 165, 0, 255 )⤶
surface.DrawRect( 0, 0, 8, 8 )⤶
render.DrawLine( Vector( 0, 0, 0 ), Vector( 8, 8, 8 ), Color( 100, 149, 237, 255 ), true )⤶
cam.End3D2D()⤶
end )⤶
</code>⤶
<output></output>⤶
⤶
</example>
Garry's Mod
Rust
Steamworks
Wiki Help
S&box