Prepared all nodes for caching and added Image node

Added Image node that can be used to import textures
Renamed all get_shader_code methods to _get_shader code so a caching system can be integrated in node_base (and we can get rid of get_source_rgb and get_source_f functions)

addons/procedural_material/node_base.gd

@@ -68,6 +68,19 @@ func get_source_rgb(source):
 		rv = "***error***"
 	return rv
 
+func get_shader_code(uv):
+	return _get_shader_code(uv)
+
+func get_textures():
+	var list = {}
+	for i in range(5):
+		var source = get_source(i)
+		if source != null:
+			var source_list = source.get_textures()
+			for k in source_list.keys():
+				list[k] = source_list[k]
+	return list
+
 func queue_free():
 	get_parent().remove_node(self.name)
 	.queue_free()

addons/procedural_material/nodes/blend.gd

@@ -12,7 +12,7 @@ func _ready():
 func color_to_string(c):
 	return "vec3("+str(c.r)+","+str(c.g)+","+str(c.b)+")"
 
-func get_shader_code(uv):
+func _get_shader_code(uv):
 	var rv = { defs="", code="" }
 	var src0 = get_source(0)
 	var src1 = get_source(1)

addons/procedural_material/nodes/blend.tscn

@@ -11,10 +11,9 @@ anchor_left = 0.0
 anchor_top = 0.0
 anchor_right = 0.0
 anchor_bottom = 0.0
-margin_left = 3.0
-margin_top = 4.0
-margin_right = 93.0
-margin_bottom = 87.0
+margin_left = 1.0
+margin_right = 91.0
+margin_bottom = 83.0
 rect_pivot_offset = Vector2( 0, 0 )
 rect_clip_content = false
 mouse_filter = 1

addons/procedural_material/nodes/bricks.gd

@@ -11,7 +11,7 @@ func _ready():
 	set_slot(0, false, 0, Color(0.5, 0.5, 1), true, 0, Color(0.5, 0.5, 1))
 	initialize_properties([ $GridContainer/rows, $GridContainer/columns, $GridContainer/row_offset, $GridContainer/mortar, $GridContainer/bevel ])
 
-func get_shader_code(uv):
+func _get_shader_code(uv):
 	var rv = { defs="", code="" }
 	if generated_variants.empty():
 		rv.defs = "float "+name+"_f(vec2 uv) { return bricks(uv, vec2("+str(columns)+", "+str(rows)+"), "+str(row_offset)+", "+str(mortar)+", "+str(max(0.001, bevel))+"); }\n"

addons/procedural_material/nodes/colorize.gd

@@ -11,7 +11,7 @@ func _ready():
 func color_to_string(c):
 	return "vec3("+str(c.r)+","+str(c.g)+","+str(c.b)+")"
 
-func get_shader_code(uv):
+func _get_shader_code(uv):
 	var rv = { defs="", code="" }
 	var src = get_source()
 	if src == null:

addons/procedural_material/nodes/godot_logo.png.import

@@ -0,0 +1,30 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path.s3tc="res://.import/godot_logo.png-045faf38aa6152514c35dacd2584c5c2.s3tc.stex"
+path.etc2="res://.import/godot_logo.png-045faf38aa6152514c35dacd2584c5c2.etc2.stex"
+
+[deps]
+
+source_file="res://addons/procedural_material/nodes/godot_logo.png"
+dest_files=[ "res://.import/godot_logo.png-045faf38aa6152514c35dacd2584c5c2.s3tc.stex", "res://.import/godot_logo.png-045faf38aa6152514c35dacd2584c5c2.etc2.stex" ]
+
+[params]
+
+compress/mode=2
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/normal_map=0
+flags/repeat=true
+flags/filter=true
+flags/mipmaps=true
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+stream=false
+size_limit=0
+detect_3d=false
+svg/scale=1.0

addons/procedural_material/nodes/image.gd

@@ -0,0 +1,28 @@
+tool
+extends "res://addons/procedural_material/node_base.gd"
+
+var rows
+
+func _ready():
+	set_slot(0, false, 0, Color(0.5, 0.5, 1), true, 0, Color(0.5, 0.5, 1))
+
+func set_texture(path):
+	var texture = ImageTexture.new()
+	texture.load(path)
+
+func get_textures():
+	var list = {}
+	list[name] = $TextureButton.texture_normal
+	return list
+
+func _get_shader_code(uv):
+	var rv = { defs="", code="" }
+	if generated_variants.empty():
+		rv.defs = "uniform sampler2D "+name+"_tex;\n"
+	var variant_index = generated_variants.find(uv)
+	if variant_index == -1:
+		variant_index = generated_variants.size()
+		generated_variants.append(uv)
+		rv.code = "vec3 "+name+"_"+str(variant_index)+"_rgb = texture("+name+"_tex, "+uv+").rgb;\n"
+	rv.rgb = name+"_"+str(variant_index)+"_rgb"
+	return rv

addons/procedural_material/nodes/image.tscn

@@ -0,0 +1,70 @@
+[gd_scene load_steps=4 format=2]
+
+[ext_resource path="res://addons/procedural_material/nodes/image.gd" type="Script" id=1]
+[ext_resource path="res://addons/procedural_material/nodes/godot_logo.png" type="Texture" id=2]
+
+[sub_resource type="Theme" id=1]
+
+
+[node name="Image" type="GraphNode" index="0"]
+
+anchor_left = 0.0
+anchor_top = 0.0
+anchor_right = 0.0
+anchor_bottom = 0.0
+margin_left = -1.0
+margin_top = -1.0
+margin_right = 95.0
+margin_bottom = 92.0
+rect_pivot_offset = Vector2( 0, 0 )
+rect_clip_content = false
+mouse_filter = 1
+mouse_default_cursor_shape = 0
+size_flags_horizontal = 1
+size_flags_vertical = 1
+theme = SubResource( 1 )
+title = "Image"
+offset = Vector2( 0, 0 )
+show_close = true
+resizable = false
+selected = false
+comment = false
+overlay = 0
+slot/0/left_enabled = false
+slot/0/left_type = 0
+slot/0/left_color = Color( 0.5, 0.5, 1, 1 )
+slot/0/right_enabled = true
+slot/0/right_type = 0
+slot/0/right_color = Color( 0.5, 0.5, 1, 1 )
+script = ExtResource( 1 )
+_sections_unfolded = [ "Theme", "slot" ]
+
+[node name="TextureButton" type="TextureButton" parent="." index="0"]
+
+anchor_left = 0.0
+anchor_top = 0.0
+anchor_right = 0.0
+anchor_bottom = 0.0
+margin_left = 16.0
+margin_top = 24.0
+margin_right = 80.0
+margin_bottom = 88.0
+rect_min_size = Vector2( 64, 64 )
+rect_pivot_offset = Vector2( 0, 0 )
+rect_clip_content = false
+focus_mode = 2
+mouse_filter = 0
+mouse_default_cursor_shape = 0
+size_flags_horizontal = 1
+size_flags_vertical = 1
+toggle_mode = false
+enabled_focus_mode = 2
+shortcut = null
+group = null
+texture_normal = ExtResource( 2 )
+stretch_mode = 5
+_sections_unfolded = [ "Rect", "Textures" ]
+
+[connection signal="close_request" from="." to="." method="queue_free"]
+
+

addons/procedural_material/nodes/iqnoise.gd

@@ -9,7 +9,7 @@ func _ready():
 	set_slot(0, false, 0, Color(0.5, 0.5, 1), true, 0, Color(0.5, 0.5, 1))
 	initialize_properties([ $GridContainer/subdivide, $GridContainer/u, $GridContainer/v ])
 
-func get_shader_code(uv):
+func _get_shader_code(uv):
 	var rv = { defs="", code="" }
 	if generated_variants.empty():
 		rv.defs = "float "+name+"_f(vec2 uv) { return iqnoise(uv, "+str(subdivide)+", "+str(u)+", "+str(v)+"); }\n"

addons/procedural_material/nodes/material.gd

@@ -5,7 +5,7 @@ func _ready():
 	set_slot(0, true, 0, Color(0.5, 0.5, 1), false, 0, Color(0.5, 0.5, 1))
 	set_slot(1, true, 0, Color(0.5, 0.5, 1), false, 0, Color(0.5, 0.5, 1))
 
-func get_shader_code(uv):
+func _get_shader_code(uv):
 	var rv = { defs="", code="", f="0.0" }
 	var src = get_source()
 	if src != null:

addons/procedural_material/nodes/normal_map.gd

@@ -8,7 +8,7 @@ func _ready():
 	set_slot(1, true, 0, Color(0.5, 0.5, 1), false, 0, Color(0.5, 0.5, 1))
 	initialize_properties([ $amount ])
 
-func get_shader_code(uv):
+func _get_shader_code(uv):
 	var rv = { defs="", code="" }
 	var src = get_source()
 	if src == null:

addons/procedural_material/nodes/perlin.gd

@@ -10,7 +10,7 @@ func _ready():
 	set_slot(0, false, 0, Color(0.5, 0.5, 1), true, 0, Color(0.5, 0.5, 1))
 	initialize_properties([ $GridContainer/scale_x, $GridContainer/scale_y, $GridContainer/iterations, $GridContainer/persistance ])
 
-func get_shader_code(uv):
+func _get_shader_code(uv):
 	var rv = { defs="", code="" }
 	if generated_variants.empty():
 		rv.defs = "float "+name+"_f(vec2 uv) { return perlin(uv, vec2("+str(scale_x)+", "+str(scale_y)+"), "+str(iterations)+", "+str(persistance)+"); }\n"

addons/procedural_material/nodes/sine.gd

@@ -8,7 +8,7 @@ func _ready():
 	set_slot(0, false, 0, Color(0.5, 0.5, 1), true, 0, Color(0.5, 0.5, 1))
 	initialize_properties([ $waves, $sharpness ])
 
-func get_shader_code(uv):
+func _get_shader_code(uv):
 	var rv = { defs="", code="" }
 	if generated_variants.empty():
 		rv.defs = "float "+name+"_f(vec2 uv) { return sine(uv, "+str(waves)+", "+str(sharpness)+"); }\n"

addons/procedural_material/nodes/transform.gd

@@ -8,7 +8,7 @@ func _ready():
 	set_slot(0, true, 0, Color(0.5, 0.5, 1), true, 0, Color(0.5, 0.5, 1))
 	initialize_properties([ $GridContainer/rotate, $GridContainer/scale ])
 
-func get_shader_code(uv):
+func _get_shader_code(uv):
 	var rv = { defs="", code="" }
 	var src = get_source()
 	if src == null:

addons/procedural_material/nodes/warp.gd

@@ -8,7 +8,7 @@ func _ready():
 	set_slot(1, true, 0, Color(0.5, 0.5, 1), false, 0, Color(0.5, 0.5, 1))
 	initialize_properties([ $amount ])
 
-func get_shader_code(uv):
+func _get_shader_code(uv):
 	var rv = { defs="", code="" }
 	var src0 = get_source(0)
 	var src1 = get_source(1)

addons/procedural_material/pm_editor.gd

@@ -4,13 +4,14 @@ extends Container
 var popup_position = Vector2(0, 0)
 var selected_node = null
 
-var material_preview_shader = null
-var texture_preview_shader = null
+var preview_material = null
+var texture_preview_material = null
 
 const MENU = [
 	{ command="load_texture", description="Load texture" },
 	{ command="save_texture", description="Save texture" },
 	{ command="export_texture", description="Export texture" },
+	{ name="image", description="Image" },
 	{ name="sine", description="Sine" },
 	{ name="bricks", description="Bricks" },
 	{ name="iqnoise", description="IQ Noise" },
@@ -24,9 +25,9 @@ const MENU = [
 
 func _ready():
 	# Duplicate the material we'll modify and store the shaders
-	material_preview_shader = $Container/ViewportContainer/MaterialPreview.material.shader
+	preview_material = $Container/ViewportContainer/MaterialPreview.material
 	$Container/ViewportContainer/SelectedPreview.material = $Container/ViewportContainer/SelectedPreview.material.duplicate(true)
-	texture_preview_shader = $Container/ViewportContainer/SelectedPreview.material.shader
+	texture_preview_material = $Container/ViewportContainer/SelectedPreview.material
 	$GraphEdit.add_valid_connection_type(0, 0)
 	$GraphEdit/PopupMenu.clear()
 	for i in MENU.size():
@@ -108,11 +109,11 @@ func save_file(filename):
 		file.close()
 
 func export_texture():
-	var size = 1024
+	var size = 256
 	$SaveViewport.size = Vector2(size, size)
 	$SaveViewport/ColorRect.rect_position = Vector2(0, 0)
 	$SaveViewport/ColorRect.rect_size = Vector2(size, size)
-	$SaveViewport/ColorRect.material.shader.set_code($GraphEdit.generate_shader(selected_node))
+	setup_material($SaveViewport/ColorRect.material, selected_node.get_textures(), $GraphEdit.generate_shader(selected_node))
 	$SaveViewport.render_target_update_mode = Viewport.UPDATE_ONCE
 	#$SaveViewport/ColorRect.update()
 	$SaveViewport.update_worlds()
@@ -122,11 +123,18 @@ func export_texture():
 	var viewport_image = viewport_texture.get_data()
 	viewport_image.save_png("res://generated_image.png")
 
+func setup_material(shader_material, textures, shader_code):
+	for k in textures.keys():
+		print("Setting param "+k+" to "+str(textures[k]))
+		shader_material.set_shader_param(k+"_tex", textures[k])
+	shader_material.shader.code = shader_code
+
 func generate_shader():
-	material_preview_shader.set_code($GraphEdit.generate_shader($GraphEdit/Material, 1))
+	setup_material(preview_material, $GraphEdit/Material.get_textures(), $GraphEdit.generate_shader($GraphEdit/Material, 1))
 	if selected_node != null:
-		texture_preview_shader.set_code($GraphEdit.generate_shader(selected_node))
+		setup_material(texture_preview_material, selected_node.get_textures(), $GraphEdit.generate_shader(selected_node))
 
 func _on_GraphEdit_node_selected(node):
 	selected_node = node
-	texture_preview_shader.set_code($GraphEdit.generate_shader(selected_node))
+	setup_material(texture_preview_material, selected_node.get_textures(), $GraphEdit.generate_shader(selected_node))
+

addons/procedural_material/pm_editor.tscn

@@ -1,9 +1,10 @@
-[gd_scene load_steps=17 format=2]
+[gd_scene load_steps=20 format=2]
 
 [ext_resource path="res://addons/procedural_material/pm_editor.gd" type="Script" id=1]
 [ext_resource path="res://addons/procedural_material/graph_edit.gd" type="Script" id=2]
 [ext_resource path="res://addons/procedural_material/nodes/material.tscn" type="PackedScene" id=3]
 [ext_resource path="res://addons/procedural_material/material_preview.gd" type="Script" id=4]
+[ext_resource path="res://addons/procedural_material/nodes/godot_logo.png" type="Texture" id=5]
 
 [sub_resource type="ProceduralSky" id=1]
 
@@ -117,7 +118,16 @@ subdivide_width = 0
 subdivide_height = 0
 subdivide_depth = 0
 
-[sub_resource type="CylinderMesh" id=5]
+[sub_resource type="Shader" id=5]
+
+code = ""
+
+[sub_resource type="ShaderMaterial" id=6]
+
+render_priority = 0
+shader = SubResource( 5 )
+
+[sub_resource type="CylinderMesh" id=7]
 
 custom_aabb = AABB( 0, 0, 0, 0, 0, 0 )
 top_radius = 1.0
@@ -126,7 +136,7 @@ height = 2.0
 radial_segments = 64
 rings = 4
 
-[sub_resource type="Animation" id=6]
+[sub_resource type="Animation" id=8]
 
 length = 1.0
 loop = true
@@ -144,7 +154,7 @@ tracks/0/keys = {
 "values": [ Vector3( 0, 0, 0 ), Vector3( 0, 360, 0 ) ]
 }
 
-[sub_resource type="ProceduralSky" id=7]
+[sub_resource type="ProceduralSky" id=9]
 
 radiance_size = 4
 sky_top_color = Color( 0.0470588, 0.454902, 0.976471, 1 )
@@ -165,10 +175,10 @@ sun_energy = 16.0
 texture_size = 2
 _sections_unfolded = [ "Sky" ]
 
-[sub_resource type="Environment" id=8]
+[sub_resource type="Environment" id=10]
 
 background_mode = 2
-background_sky = SubResource( 7 )
+background_sky = SubResource( 9 )
 background_sky_custom_fov = 0.0
 background_color = Color( 0, 0, 0, 1 )
 background_energy = 1.0
@@ -245,7 +255,7 @@ adjustment_contrast = 1.0
 adjustment_saturation = 1.0
 _sections_unfolded = [ "Background" ]
 
-[sub_resource type="Shader" id=9]
+[sub_resource type="Shader" id=11]
 
 code = "shader_type canvas_item;
 
@@ -255,12 +265,12 @@ void fragment() {
 "
 _sections_unfolded = [ "Resource" ]
 
-[sub_resource type="ShaderMaterial" id=10]
+[sub_resource type="ShaderMaterial" id=12]
 
 render_priority = 0
-shader = SubResource( 9 )
+shader = SubResource( 11 )
 
-[sub_resource type="Shader" id=11]
+[sub_resource type="Shader" id=13]
 
 code = "shader_type canvas_item;
 
@@ -383,18 +393,18 @@ float perlin(vec2 p, vec2 scale, int iterations, float persistance) {
 	return n/normK;
 }
 
-float Perlin_f(vec2 uv) { return perlin(uv, vec2(8, 9), 7, 1); }
+uniform sampler2D Image_tex;
 void fragment() {
-float Perlin_0_f = Perlin_f(UV);
-vec3 Colorize_0_rgb = mix(vec3(0,0,0), vec3(1,1,1), Perlin_0_f);
-COLOR = vec4(Colorize_0_rgb, 1.0);
+vec3 Image_0_rgb = texture(Image_tex, UV).rgb;
+COLOR = vec4(Image_0_rgb, 1.0);
 }
 "
 
-[sub_resource type="ShaderMaterial" id=12]
+[sub_resource type="ShaderMaterial" id=14]
 
 render_priority = 0
-shader = SubResource( 11 )
+shader = SubResource( 13 )
+shader_param/Image_tex = ExtResource( 5 )
 
 [node name="ProceduralMaterialEditor" type="MarginContainer" index="0"]
 
@@ -464,7 +474,7 @@ mouse_default_cursor_shape = 0
 size_flags_horizontal = 1
 size_flags_vertical = 1
 popup_exclusive = false
-items = [ "Load texture", null, 0, false, false, 0, 0, null, "", false, "Save texture", null, 0, false, false, 1, 0, null, "", false, "Sine", null, 0, false, false, 2, 0, null, "", false, "Bricks", null, 0, false, false, 3, 0, null, "", false, "IQ Noise", null, 0, false, false, 4, 0, null, "", false, "Perlin noise", null, 0, false, false, 5, 0, null, "", false, "Transform", null, 0, false, false, 6, 0, null, "", false, "Warp", null, 0, false, false, 7, 0, null, "", false, "Colorize", null, 0, false, false, 8, 0, null, "", false, "Normal Map", null, 0, false, false, 9, 0, null, "", false, "Blend", null, 0, false, false, 10, 0, null, "", false ]
+items = [ "Load texture", null, 0, false, false, 0, 0, null, "", false, "Save texture", null, 0, false, false, 1, 0, null, "", false, "Export texture", null, 0, false, false, 2, 0, null, "", false, "Image", null, 0, false, false, 3, 0, null, "", false, "Sine", null, 0, false, false, 4, 0, null, "", false, "Bricks", null, 0, false, false, 5, 0, null, "", false, "IQ Noise", null, 0, false, false, 6, 0, null, "", false, "Perlin noise", null, 0, false, false, 7, 0, null, "", false, "Transform", null, 0, false, false, 8, 0, null, "", false, "Warp", null, 0, false, false, 9, 0, null, "", false, "Colorize", null, 0, false, false, 10, 0, null, "", false, "Normal Map", null, 0, false, false, 11, 0, null, "", false, "Blend", null, 0, false, false, 12, 0, null, "", false ]
 hide_on_state_item_selection = false
 _sections_unfolded = [ "Rect" ]
 
@@ -553,7 +563,7 @@ _sections_unfolded = [ "GUI", "Render Target", "Rendering" ]
 
 [node name="Objects" type="Spatial" parent="Container/ViewportContainer/MaterialPreview" index="0"]
 
-transform = Transform( -0.989989, 0, 0.141142, 0, 1, 0, -0.141142, 0, -0.989989, 0, 0, 0 )
+transform = Transform( -0.978305, 0, 0.207164, 0, 1, 0, -0.207164, 0, -0.978305, 0, 0, 0 )
 _sections_unfolded = [ "Transform" ]
 
 [node name="Cube" type="MeshInstance" parent="Container/ViewportContainer/MaterialPreview/Objects" index="0"]
@@ -569,7 +579,7 @@ lod_max_distance = 0.0
 lod_max_hysteresis = 0.0
 mesh = SubResource( 4 )
 skeleton = NodePath("..")
-material/0 = null
+material/0 = SubResource( 6 )
 _sections_unfolded = [ "Geometry", "Transform", "material" ]
 
 [node name="Cylinder" type="MeshInstance" parent="Container/ViewportContainer/MaterialPreview/Objects" index="1"]
@@ -584,9 +594,9 @@ lod_min_distance = 0.0
 lod_min_hysteresis = 0.0
 lod_max_distance = 0.0
 lod_max_hysteresis = 0.0
-mesh = SubResource( 5 )
+mesh = SubResource( 7 )
 skeleton = NodePath("..")
-material/0 = null
+material/0 = SubResource( 6 )
 _sections_unfolded = [ "Geometry", "Transform", "material" ]
 
 [node name="AnimationPlayer" type="AnimationPlayer" parent="Container/ViewportContainer/MaterialPreview" index="1"]
@@ -596,7 +606,7 @@ autoplay = "rotate"
 playback_process_mode = 1
 playback_default_blend_time = 0.0
 playback_speed = 0.1
-anims/rotate = SubResource( 6 )
+anims/rotate = SubResource( 8 )
 blend_times = [  ]
 _sections_unfolded = [ "Playback Options" ]
 
@@ -628,7 +638,7 @@ _sections_unfolded = [ "Shadow" ]
 transform = Transform( 1, 0, 0, 0, 0.766044, 0.642787, 0, -0.642787, 0.766044, 0, 1.83022, 2.2549 )
 keep_aspect = 1
 cull_mask = 1048575
-environment = SubResource( 8 )
+environment = SubResource( 10 )
 h_offset = 0.0
 v_offset = 0.0
 doppler_tracking = 0
@@ -642,7 +652,7 @@ _sections_unfolded = [ "Transform" ]
 
 [node name="SelectedPreview" type="ColorRect" parent="Container/ViewportContainer" index="1"]
 
-material = SubResource( 10 )
+material = SubResource( 12 )
 anchor_left = 0.0
 anchor_top = 0.0
 anchor_right = 0.0
@@ -673,7 +683,7 @@ hdr = true
 disable_3d = false
 usage = 2
 debug_draw = 0
-render_target_v_flip = false
+render_target_v_flip = true
 render_target_clear_mode = 0
 render_target_update_mode = 1
 audio_listener_enable_2d = false
@@ -690,7 +700,7 @@ _sections_unfolded = [ "GUI", "Render Target" ]
 
 [node name="ColorRect" type="ColorRect" parent="SaveViewport" index="0"]
 
-material = SubResource( 12 )
+material = SubResource( 14 )
 anchor_left = 0.0
 anchor_top = 0.0
 anchor_right = 0.0
@@ -704,7 +714,7 @@ mouse_default_cursor_shape = 0
 size_flags_horizontal = 1
 size_flags_vertical = 1
 color = Color( 1, 1, 1, 1 )
-_sections_unfolded = [ "Material" ]
+_sections_unfolded = [ "Material", "Rect" ]
 
 [node name="Timer" type="Timer" parent="SaveViewport" index="1"]
 

examples/input_image.png.import

@@ -0,0 +1,29 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/input_image.png-6f289ee4d1d220cf5c592c556aa83e9e.stex"
+
+[deps]
+
+source_file="res://examples/input_image.png"
+dest_files=[ "res://.import/input_image.png-6f289ee4d1d220cf5c592c556aa83e9e.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
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