shader

shader/toon.tres

@@ -2,7 +2,6 @@
 
 [ext_resource type="Shader" uid="uid://bbs8x8ygec4lo" path="res://shader/outline.gdshader" id="1_vdkh7"]
 [ext_resource type="Shader" uid="uid://wepsb3f7nni" path="res://shader/cel-shader-base.gdshader" id="2_63a2j"]
-[ext_resource type="Texture2D" uid="uid://b353hjk53b3ob" path="res://assets/Food Pack - Low Poly Assets/Can_PaletteAssets.png" id="3_63a2j"]
 
 [sub_resource type="ShaderMaterial" id="ShaderMaterial_m5gih"]
 render_priority = 0
@@ -12,8 +11,7 @@ shader = ExtResource("1_vdkh7")
 render_priority = 0
 next_pass = SubResource("ShaderMaterial_m5gih")
 shader = ExtResource("2_63a2j")
-shader_parameter/color = Color(0.7, 0.12, 0.86, 1)
-shader_parameter/base_texture = ExtResource("3_63a2j")
+shader_parameter/color = Color(1, 1, 1, 1)
 shader_parameter/specular = Color(0.3, 0.3, 0.3, 0.5)
 shader_parameter/fresnel = Color(0.2, 0.2, 0.2, 0.3)
 shader_parameter/uv_scale = Vector2(1, 1)

shader/toon_apply.gd

@@ -1,25 +1,62 @@
 @tool
 extends Node3D
 
-const ToonApply = preload("res://shader/toon_apply.gd")
-
+@export var refresh_now: bool = false:
+	set(value):
+		if value:
+			refresh_now = false # 自动弹回
+			_apply_materials()
 
 @export var cartoon_material: ShaderMaterial:
 	set(value):
 		cartoon_material = value
 		_apply_materials()
 
-
+@export_group("Instance Overrides")
+@export var use_custom_color: bool = false:
+	set(value):
+		use_custom_color = value
+		_apply_materials()
+@export var custom_color: Color = Color(1, 1, 1, 1):
+	set(value):
+		custom_color = value
+		if use_custom_color: # 只有开启时才实时刷新
+			_apply_materials()
+			
 func _ready() -> void:
 	_apply_materials()
-
+	
 func _apply_materials():
-	if not is_inside_tree():
+	if not is_inside_tree() or cartoon_material == null: 
 		return
 	
-	# 未指定时默认使用 ToonApply
-	var mat: Material = cartoon_material if cartoon_material != null else ToonApply as Material
-	
 	for node in find_children("*", "MeshInstance3D", true, false):
-		if node is MeshInstance3D:
-			node.material_override = mat
+		if not node is MeshInstance3D:
+			continue
+			
+		# 1. 复制一份全新的独立材质，它自带模板 (toon.tres) 的默认颜色和贴图
+		var unique_mat = cartoon_material.duplicate()
+		
+		# 2. 安全地获取原模型自带的贴图，并赋给独立材质
+		if node.mesh != null and node.mesh.get_surface_count() > 0:
+			var original_mat = node.mesh.surface_get_material(0)
+			if original_mat != null:
+				var final_tex: Texture2D = null
+				# 兼容 StandardMaterial3D
+				if original_mat is StandardMaterial3D:
+					final_tex = original_mat.albedo_texture
+				# 兼容原模型自带的其他 ShaderMaterial（如从 Blender 导入的材质）
+				elif original_mat.has_method("get_shader_parameter"):
+					final_tex = original_mat.get_shader_parameter("base_texture")
+					
+				if final_tex != null:
+					unique_mat.set_shader_parameter("base_texture", final_tex)
+		
+		# 3. 处理颜色覆盖
+		# 如果勾选了自定义颜色，直接在独立材质上修改
+		# 如果没勾选，则什么都不做，保留从模板复制来的默认颜色
+		if use_custom_color:
+			unique_mat.set_shader_parameter("color", custom_color)
+			
+		# 4. 最后，把配置好的独立材质一次性赋予模型
+		node.material_override = unique_mat