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Asked By | argento |
I need to draw a part of an image, delimited by a polygon, on the screen, but when I try to call CanvasItem.draw_polygon() with the uv array nothing will appear on screen.
I know that I can do it with a Polygon2D instance but I need to use the draw_polygon() function because I have a scripted node with custom drawing.
Here is a code example that doesn’t work for me
extends Node2D
var polygon: PoolVector2Array
var colors: PoolColorArray = PoolColorArray()
var uvs: PoolVector2Array = PoolVector2Array()
var external_texture:Texture = load("res://icon.png")
func _ready():
polygon = PoolVector2Array([
Vector2(64,64),
Vector2(0,64),
Vector2(0,0),
Vector2(64,0)])
for i in range(polygon.size()):
colors.append(Color(1,1,1,1))
func _draw():
draw_polygon(polygon, colors, polygon, external_texture)
I used 2 times the same PoolVector2Array, one for the polygon and the other for the uv
If i simply call draw_polygon(polygon, colors) without uv and texture information the polygon is drawn correctly (but in a solid color instead that with the texture)
I am using Godot 3.1 beta6
UV range is >=0 and <1 unless you’ve a repeating texture. So normalize your UVs. (here: divide by 64)
wombatstampede | 2019-02-23 20:34
Thank you very much, it worked
argento | 2019-02-23 20:55