add test tectures and 2d filter

node_2d.tscn

@@ -1,3 +1,11 @@
 [gd_scene format=3 uid="uid://bqa35tildi134"]
 
-[node name="Node2D" type="Node2D"]
+[node name="test_1" type="Node2D"]
+
+[node name="SubViewportContainer" type="SubViewportContainer" parent="."]
+offset_right = 40.0
+offset_bottom = 40.0
+
+[node name="SubViewport" type="SubViewport" parent="SubViewportContainer"]
+
+[node name="Camera3D" type="Camera3D" parent="SubViewportContainer/SubViewport"]

terrain/cave.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://j5d128lgbna4"
+path="res://.godot/imported/cave.png-ae3f4fc83ffb5dd12fed90437ca549eb.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://terrain/cave.png"
+dest_files=["res://.godot/imported/cave.png-ae3f4fc83ffb5dd12fed90437ca549eb.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+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
+detect_3d/compress_to=1

terrain/grid.jpg.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://1tv81ln4sgca"
+path="res://.godot/imported/grid.jpg-e6e221441035996115f49f81cfcdd58e.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://terrain/grid.jpg"
+dest_files=["res://.godot/imported/grid.jpg-e6e221441035996115f49f81cfcdd58e.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+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
+detect_3d/compress_to=1