Add rasterize mesh texture demo

rendering/mesh_texture_rd/2d_array_mesh.tres

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+[gd_resource type="ArrayMesh" format=3 uid="uid://j7duroqwmiuw"]
+
+[resource]
+_surfaces = [{
+"2d": true,
+"aabb": AABB(-64, -64, 0, 128, 128, 0),
+"attribute_data": PackedByteArray(51, 51, 118, 63, 0, 0, 0, 0, 0, 0, 32, 61, 0, 0, 0, 0, 205, 204, 204, 58, 0, 0, 32, 61, 0, 0, 0, 0, 102, 102, 121, 63, 154, 153, 249, 60, 0, 0, 128, 63, 51, 51, 119, 63, 0, 0, 128, 63, 205, 204, 127, 63, 0, 0, 118, 63, 0, 0, 128, 63, 205, 204, 204, 60),
+"format": 34393296913,
+"index_count": 18,
+"index_data": PackedByteArray(0, 0, 7, 0, 6, 0, 6, 0, 5, 0, 4, 0, 4, 0, 3, 0, 2, 0, 2, 0, 1, 0, 0, 0, 0, 0, 6, 0, 4, 0, 4, 0, 2, 0, 0, 0),
+"primitive": 3,
+"uv_scale": Vector4(0, 0, 0, 0),
+"vertex_count": 8,
+"vertex_data": PackedByteArray(102, 102, 108, 66, 0, 0, 128, 194, 0, 0, 108, 194, 0, 0, 128, 194, 51, 51, 127, 194, 0, 0, 108, 194, 0, 0, 128, 194, 204, 204, 114, 66, 102, 102, 112, 194, 0, 0, 128, 66, 102, 102, 110, 66, 0, 0, 128, 66, 154, 153, 127, 66, 0, 0, 108, 66, 0, 0, 128, 66, 51, 51, 115, 194)
+}]

rendering/mesh_texture_rd/3d.tscn

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+[gd_scene load_steps=7 format=3 uid="uid://mx52oimcwqtn"]
+
+[ext_resource type="Texture2D" uid="uid://bg8txxwsr4qn8" path="res://text_texture.tres" id="1_y2yqg"]
+
+[sub_resource type="ProceduralSkyMaterial" id="ProceduralSkyMaterial_y2yqg"]
+sky_horizon_color = Color(0.66224277, 0.6717428, 0.6867428, 1)
+ground_horizon_color = Color(0.66224277, 0.6717428, 0.6867428, 1)
+
+[sub_resource type="Sky" id="Sky_fji6l"]
+sky_material = SubResource("ProceduralSkyMaterial_y2yqg")
+
+[sub_resource type="Environment" id="Environment_73ytm"]
+background_mode = 2
+sky = SubResource("Sky_fji6l")
+tonemap_mode = 2
+glow_enabled = true
+
+[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_y2yqg"]
+transparency = 1
+shading_mode = 0
+albedo_texture = ExtResource("1_y2yqg")
+
+[sub_resource type="BoxMesh" id="BoxMesh_p1i0w"]
+
+[node name="3d" type="Node3D"]
+
+[node name="WorldEnvironment" type="WorldEnvironment" parent="."]
+environment = SubResource("Environment_73ytm")
+
+[node name="DirectionalLight3D" type="DirectionalLight3D" parent="."]
+transform = Transform3D(-0.8660254, -0.43301278, 0.25, 0, 0.49999997, 0.86602545, -0.50000006, 0.75, -0.43301266, 0, 0, 0)
+shadow_enabled = true
+
+[node name="MeshInstance3D" type="MeshInstance3D" parent="."]
+material_override = SubResource("StandardMaterial3D_y2yqg")
+mesh = SubResource("BoxMesh_p1i0w")
+
+[node name="Camera3D" type="Camera3D" parent="."]
+transform = Transform3D(0.7071068, 0.5, -0.5, 0, 0.7071068, 0.70710677, 0.7071068, -0.5, 0.5, -1, 1, 1)

rendering/mesh_texture_rd/README.md

@@ -0,0 +1,11 @@
+# Rasterize Mesh Texture
+
+This is a demo showing how to set up a basic render pipeline to draw mesh to texture using RenderingDevice.
+
+Language: GDScript
+
+Renderer: Mobile
+
+## Screenshots
+
+![Screenshot](screenshots/rasterize_mesh_texture.webp)

rendering/mesh_texture_rd/base_texture.glsl

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+#[vertex]
+#version 450
+
+layout(location = 0) in vec3 position;
+layout(location = 1) in vec2 uv;
+
+layout(location = 0) out vec2 uv_interp;
+
+layout(push_constant) uniform Data {
+    mat4 xform;
+};
+
+void main() {
+    uv_interp = uv;
+    gl_Position = xform * vec4(position, 1.0);
+}
+
+#[fragment]
+#version 450
+
+layout(location = 0) in vec2 uv_interp;
+
+layout(location = 0) out vec4 frag_color;
+
+layout(set = 0, binding = 0) uniform sampler2D tex;
+
+void main() {
+    frag_color = texture(tex, uv_interp);
+}

rendering/mesh_texture_rd/base_texture.glsl.import

@@ -0,0 +1,14 @@
+[remap]
+
+importer="glsl"
+type="RDShaderFile"
+uid="uid://bsbaafha2qt2x"
+path="res://.godot/imported/base_texture.glsl-7668889287fcd72a7484b036a760efd0.res"
+
+[deps]
+
+source_file="res://base_texture.glsl"
+dest_files=["res://.godot/imported/base_texture.glsl-7668889287fcd72a7484b036a760efd0.res"]
+
+[params]
+

rendering/mesh_texture_rd/godot_icon.svg.import

@@ -0,0 +1,40 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://crm65s53yy1n6"
+path="res://.godot/imported/godot_icon.svg-7b3f4db08ef4bccb8acaa5db9e9fe760.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://godot_icon.svg"
+dest_files=["res://.godot/imported/godot_icon.svg-7b3f4db08ef4bccb8acaa5db9e9fe760.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/uastc_level=0
+compress/rdo_quality_loss=0.0
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+process/resolution_scale=1.0
+detect_3d/compress_to=0
+svg/scale=1.0
+editor/scale_with_editor_scale=false
+editor/convert_colors_with_editor_theme=false

rendering/mesh_texture_rd/icon.webp.import

@@ -0,0 +1,37 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://b1ukde136ayme"
+path="res://.godot/imported/icon.webp-e94f9a68b0f625a567a797079e4d325f.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://icon.webp"
+dest_files=["res://.godot/imported/icon.webp-e94f9a68b0f625a567a797079e4d325f.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/uastc_level=0
+compress/rdo_quality_loss=0.0
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+process/resolution_scale=1.0
+detect_3d/compress_to=0

rendering/mesh_texture_rd/main.tscn

@@ -0,0 +1,68 @@
+[gd_scene load_steps=14 format=3 uid="uid://cnk1inmvelj4x"]
+
+[ext_resource type="Texture2D" uid="uid://crm65s53yy1n6" path="res://godot_icon.svg" id="1_7mycd"]
+[ext_resource type="RDShaderFile" uid="uid://bsbaafha2qt2x" path="res://base_texture.glsl" id="2_7mycd"]
+[ext_resource type="Script" uid="uid://cdfq6x7v36k1e" path="res://mesh_texture_rd.gd" id="3_5vw27"]
+[ext_resource type="ArrayMesh" uid="uid://j7duroqwmiuw" path="res://2d_array_mesh.tres" id="4_1bvp3"]
+[ext_resource type="Texture2D" uid="uid://bg8txxwsr4qn8" path="res://text_texture.tres" id="4_lquwl"]
+[ext_resource type="PackedScene" uid="uid://mx52oimcwqtn" path="res://3d.tscn" id="6_7mycd"]
+
+[sub_resource type="PrismMesh" id="PrismMesh_kek77"]
+
+[sub_resource type="Texture2DRD" id="Texture2DRD_5vw27"]
+script = ExtResource("3_5vw27")
+clear_color = Color(0.412266, 0.447241, 0.735728, 1)
+mesh = SubResource("PrismMesh_kek77")
+base_texture = ExtResource("1_7mycd")
+projection = Projection(-0.6, -1.3, 0, 0, 1.1, -1.67, 0, 0, -0.76, 0, -1.2, 0, 0, -0.26, 0, 1.36)
+
+[sub_resource type="TorusMesh" id="TorusMesh_lquwl"]
+
+[sub_resource type="Texture2DRD" id="Texture2DRD_7mycd"]
+script = ExtResource("3_5vw27")
+clear_color = Color(0.271125, 0.510188, 0.620698, 1)
+mesh = SubResource("TorusMesh_lquwl")
+base_texture = ExtResource("1_7mycd")
+projection = Projection(-0.7, -0.92, 0.5, 0, 0.25, -1.5, 0.32, 0, 1.43, -0.14, 0.48, 0.14, 0.1, 0.02, 0.75, 1.85)
+metadata/_custom_type_script = "uid://delyovxoqvijt"
+
+[sub_resource type="QuadMesh" id="QuadMesh_1bvp3"]
+
+[sub_resource type="Texture2DRD" id="Texture2DRD_lquwl"]
+script = ExtResource("3_5vw27")
+clear_color = Color(0.572798, 0.384286, 0.683792, 0.337255)
+mesh = SubResource("QuadMesh_1bvp3")
+base_texture = ExtResource("1_7mycd")
+projection = Projection(1, 0, 0, 0, 0, -1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)
+metadata/_custom_type_script = "uid://delyovxoqvijt"
+
+[sub_resource type="Texture2DRD" id="Texture2DRD_272bh"]
+script = ExtResource("3_5vw27")
+mesh = ExtResource("4_1bvp3")
+base_texture = ExtResource("1_7mycd")
+projection = Projection(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 100)
+metadata/_custom_type_script = "uid://cdfq6x7v36k1e"
+
+[node name="Node2D" type="Node2D"]
+
+[node name="Prism" type="Sprite2D" parent="."]
+position = Vector2(573, 321)
+texture = SubResource("Texture2DRD_5vw27")
+
+[node name="Torus" type="Sprite2D" parent="."]
+position = Vector2(898, 319)
+texture = SubResource("Texture2DRD_7mycd")
+
+[node name="Quad" type="Sprite2D" parent="."]
+position = Vector2(252, 321)
+texture = SubResource("Texture2DRD_lquwl")
+
+[node name="Text" type="Sprite2D" parent="."]
+position = Vector2(293, 89)
+texture = ExtResource("4_lquwl")
+
+[node name="3d" parent="." instance=ExtResource("6_7mycd")]
+
+[node name="2DMesh" type="Sprite2D" parent="."]
+position = Vector2(244, 797)
+texture = SubResource("Texture2DRD_272bh")