Pas d'anti aliasing et voilà

caracters/bob/bob.gdshader

@@ -1,6 +1,6 @@
 shader_type canvas_item;
 
-uniform vec4 line_color : source_color = vec4(1);
+uniform vec4 line_color : source_color = vec4(1.0);
 uniform float line_thickness : hint_range(0, 10) = 1.0;
 
 const vec2 OFFSETS[8] = {
@@ -9,19 +9,15 @@ const vec2 OFFSETS[8] = {
 };
 
 void fragment() {
-	vec2 size = TEXTURE_PIXEL_SIZE * line_thickness / 2.0;
+	vec2 size = TEXTURE_PIXEL_SIZE * line_thickness;
-	vec4 color = texture(TEXTURE, UV);
+	float outline = 1.0;
 	
-	float inline = 1.0;
-	float outline = 0.0;
 	for (int i = 0; i < OFFSETS.length(); i++) {
-		float sample = texture(TEXTURE, UV + size * OFFSETS[i]).a;
+		outline *= texture(TEXTURE, UV + size * OFFSETS[i]).a;
-		outline += sample;
-		inline *= sample;
 	}
-	outline = min(1.0, outline) - color.a;
+	outline = 1.0 - outline;
-	inline = (1.0 - inline) * color.a;
 	
-	vec4 outlined_result = mix(color, line_color, outline + inline);
+	vec4 color = texture(TEXTURE, UV);
+	vec4 outlined_result = mix(color, line_color, outline * color.a);
 	COLOR = mix(color, outlined_result, outlined_result.a);
 }

caracters/bob/bob.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=18 format=3 uid="uid://bleadp4yrdgj"]
+[gd_scene load_steps=19 format=3 uid="uid://bleadp4yrdgj"]
 
 [ext_resource type="Script" path="res://caracters/human.gd" id="1_x3vfc"]
 [ext_resource type="AnimationNodeStateMachine" uid="uid://ddr1ltkievtku" path="res://animations/human/human_state_machine.tres" id="2_86nrf"]
@@ -9,6 +9,7 @@
 [ext_resource type="Shader" path="res://caracters/bob/bob.gdshader" id="5_tpu8c"]
 [ext_resource type="PackedScene" uid="uid://07byq4mh8uwv" path="res://caracters/npc_controler.tscn" id="8_uueub"]
 [ext_resource type="PackedScene" uid="uid://x2asns3kiqwg" path="res://interactable/interaction_zone.tscn" id="9_35f01"]
+[ext_resource type="Resource" uid="uid://vg4mssby1i6p" path="res://caracters/bob/bob.dialogue" id="9_d5408"]
 [ext_resource type="PackedScene" uid="uid://dn10ervwv15oo" path="res://UI/clues/bubble_clue.tscn" id="10_rm4iv"]
 [ext_resource type="PackedScene" uid="uid://cjm4k0fv7eger" path="res://caracters/human_pathfinder.tscn" id="11_ubech"]
 
@@ -53,7 +54,7 @@ tree_root = SubResource("AnimationNodeBlendTree_iwsa7")
 advance_expression_base_node = NodePath("..")
 anim_player = NodePath("../AnimationPlayer")
 parameters/HumanState/grabing/blend_position = Vector2(0, 0)
-parameters/HumanState/idling/blend_position = Vector2(0, 0)
+parameters/HumanState/idling/blend_position = Vector2(0.652675, 0.0159453)
 parameters/HumanState/walking/blend_position = Vector2(0, 0)
 parameters/TimeScale/scale = 1.0
 
@@ -82,6 +83,7 @@ rotation = 1.5708
 shape = SubResource("CapsuleShape2D_a4vmx")
 
 [node name="npcControler" parent="." instance=ExtResource("8_uueub")]
+dialogue = ExtResource("9_d5408")
 
 [node name="interaction zone" parent="." node_paths=PackedStringArray("clue") instance=ExtResource("9_35f01")]
 clue = NodePath("../clue")

caracters/npc.gd

@@ -1,10 +1,8 @@
 extends Node
 
-
 @onready var controled:Human = get_parent()
+@export var dialogue : Resource
 
 func _on_character_body_2d_start_intracting(interactingWith: Human) -> void:
 	controled.face(interactingWith.global_position)
-	# ouvre un dialogue
+	DialogueManager.show_dialogue_balloon(dialogue, "start")
-	var resource = load("res://caracters/bob/bob.dialogue")
-	DialogueManager.show_dialogue_balloon(resource, "start")

project.godot

@@ -89,3 +89,4 @@ textures/canvas_textures/default_texture_filter=0
 renderer/rendering_method="gl_compatibility"
 renderer/rendering_method.mobile="gl_compatibility"
 textures/vram_compression/import_etc2_astc=true
+anti_aliasing/screen_space_roughness_limiter/enabled=false