render.SetScissorRect
Description
Sets a scissoring rect which limits the drawing area.
Arguments
Example
Shows how to use this function. This will cut the white rectangle from full screen to 512x512 box in top left corner
render.SetScissorRect( 0, 0, 512, 512, true ) -- Enable the rect
draw.RoundedBox( 4, 0, 0, ScrW(), ScrH(), color_white ) -- Draw a white rectangle over the whole screen
render.SetScissorRect( 0, 0, 0, 0, false ) -- Disable after you are done
Example
Draws a fake circle + cut it to look like a progress bar
local function draw_circle( x, y, radius, color, percent )
percent = percent or 1
render.SetScissorRect( x - radius, y - radius + radius * 2 * ( 1 - percent ), x + radius, y + radius * 2, true )
draw.RoundedBox( radius, x - radius, y - radius, radius * 2, radius * 2, color or color_white )
render.SetScissorRect( 0, 0, 0, 0, false )
end
hook.Add( "HUDPaint", "GMod:Wiki", function()
local w, h = ScrW(), ScrH()
local radius = h * 0.1
-- Filled circle
draw_circle( w / 2, h * 0.25, radius, Color( 255, 0, 0 ), 1 )
-- Filled circle + quarter circle
draw_circle( w / 2, h / 2, radius, Color( 255, 0, 0 ), 1 )
draw_circle( w / 2, h / 2, radius, Color( 0, 255, 0 ), 0.25 )
-- Half circle
draw_circle( w / 2, h * 0.75, radius, Color( 0, 0, 255 ), 0.5 )
end )
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