use texture in piece shader

game/src/Piece.gd

@@ -12,3 +12,7 @@ func _ready() -> void:
 	$ColorRect.rect_size.x = size
 	$ColorRect.rect_size.y = size
 	$ColorRect/Label.text = str(number)
+
+	var shader = $ColorRect.material as ShaderMaterial
+	shader.set_shader_param("scale", Vector3(0.5, 0.5, 1.0))
+	shader.set_shader_param("offset", Vector3(0.8, 0.1, 0.0))

game/src/Piece.tscn

@@ -1,13 +1,35 @@
-[gd_scene load_steps=5 format=2]
+[gd_scene load_steps=11 format=2]
 
 [ext_resource path="res://src/Piece.gd" type="Script" id=1]
+[ext_resource path="res://assets/escher_lizards.jpg" type="Texture" id=2]
 
-[sub_resource type="VisualShaderNodeColorConstant" id=1]
+[sub_resource type="VisualShaderNodeTexture" id=2]
-constant = Color( 0.73997, 0.960938, 0.446686, 1 )
+output_port_for_preview = 0
+texture = ExtResource( 2 )
 
-[sub_resource type="VisualShader" id=2]
+[sub_resource type="VisualShaderNodeInput" id=5]
+output_port_for_preview = 0
+input_name = "uv"
+
+[sub_resource type="VisualShaderNodeVectorOp" id=6]
+output_port_for_preview = 0
+default_input_values = [ 0, Vector3( 0, 0, 0 ), 1, Vector3( 0.5, 0.5, 1 ) ]
+operator = 2
+
+[sub_resource type="VisualShaderNodeVectorOp" id=7]
+default_input_values = [ 0, Vector3( 0, 0, 0 ), 1, Vector3( 0.8, 0.1, 0 ) ]
+
+[sub_resource type="VisualShaderNodeVec3Uniform" id=8]
+uniform_name = "scale"
+
+[sub_resource type="VisualShaderNodeVec3Uniform" id=9]
+uniform_name = "offset"
+
+[sub_resource type="VisualShader" id=3]
 code = "shader_type canvas_item;
-
+uniform vec3 scale;
+uniform vec3 offset;
+uniform sampler2D tex_frg_3;
 
 
 void vertex() {
@@ -16,14 +38,35 @@ void vertex() {
 }
 
 void fragment() {
-// Color:2
+// Input:4
-	vec3 n_out2p0;
+	vec3 n_out4p0;
-	float n_out2p1;
+	n_out4p0 = vec3(UV,0.0);
-	n_out2p0 = vec3(0.739970,0.960938,0.446686);
+
-	n_out2p1 = 1.000000;
+// VectorUniform:7
+	vec3 n_out7p0;
+	n_out7p0 = scale;
+
+// VectorOp:5
+	vec3 n_out5p0;
+	n_out5p0 = n_out4p0 * n_out7p0;
+
+// VectorUniform:8
+	vec3 n_out8p0;
+	n_out8p0 = offset;
+
+// VectorOp:6
+	vec3 n_out6p0;
+	n_out6p0 = n_out5p0 + n_out8p0;
+
+// Texture:3
+	vec3 n_out3p0;
+	float n_out3p1;
+	vec4 tex_frg_3_read = texture( tex_frg_3 , n_out6p0.xy );
+	n_out3p0 = tex_frg_3_read.rgb;
+	n_out3p1 = tex_frg_3_read.a;
 
 // Output:0
-	COLOR.rgb = n_out2p0;
+	COLOR.rgb = n_out3p0;
 
 }
 
@@ -32,25 +75,38 @@ void light() {
 
 }
 "
+graph_offset = Vector2( -175, -3.73047 )
 mode = 1
 flags/light_only = false
-nodes/fragment/0/position = Vector2( 380, 80 )
+nodes/fragment/0/position = Vector2( 1080, 160 )
-nodes/fragment/2/node = SubResource( 1 )
+nodes/fragment/3/node = SubResource( 2 )
-nodes/fragment/2/position = Vector2( 140, 80 )
+nodes/fragment/3/position = Vector2( 820, 120 )
-nodes/fragment/connections = PoolIntArray( 2, 0, 0, 0 )
+nodes/fragment/4/node = SubResource( 5 )
+nodes/fragment/4/position = Vector2( 140, 120 )
+nodes/fragment/5/node = SubResource( 6 )
+nodes/fragment/5/position = Vector2( 360, 100 )
+nodes/fragment/6/node = SubResource( 7 )
+nodes/fragment/6/position = Vector2( 620, 220 )
+nodes/fragment/7/node = SubResource( 8 )
+nodes/fragment/7/position = Vector2( 140, 320 )
+nodes/fragment/8/node = SubResource( 9 )
+nodes/fragment/8/position = Vector2( 420, 360 )
+nodes/fragment/connections = PoolIntArray( 3, 0, 0, 0, 4, 0, 5, 0, 5, 0, 6, 0, 6, 0, 3, 0, 7, 0, 5, 1, 8, 0, 6, 1 )
 
-[sub_resource type="ShaderMaterial" id=3]
+[sub_resource type="ShaderMaterial" id=4]
-shader = SubResource( 2 )
+shader = SubResource( 3 )
+shader_param/scale = null
+shader_param/offset = null
 
 [node name="Piece" type="Node2D"]
 script = ExtResource( 1 )
 
 [node name="ColorRect" type="ColorRect" parent="."]
-material = SubResource( 3 )
+material = SubResource( 4 )
 anchor_right = 1.0
 anchor_bottom = 1.0
-margin_right = 128.0
+margin_right = 64.0
-margin_bottom = 128.0
+margin_bottom = 64.0
 
 [node name="Label" type="Label" parent="ColorRect"]
 margin_left = 10.0