First test with ground shading

maps/basic_setup.tscn

@@ -1,9 +1,9 @@
 [gd_scene load_steps=17 format=3 uid="uid://cvdmfc2hi172g"]
 
-[ext_resource type="Material" uid="uid://cdijyqa881tvv" path="res://maps/materials/simple_grid_world.material" id="1_h84bv"]
+[ext_resource type="Material" uid="uid://dpegsmygxcfmv" path="res://maps/materials/basic_ground.material" id="1_lodye"]
 [ext_resource type="PackedScene" uid="uid://cveshwnu272vf" path="res://maps/ramp-complex.tscn" id="2_4eueh"]
 [ext_resource type="PackedScene" uid="uid://omess6wwwwcq" path="res://maps/ramp-moving.tscn" id="3_bvbgo"]
-[ext_resource type="PackedScene" path="res://maps/moutain.tscn" id="3_rbp35"]
+[ext_resource type="PackedScene" uid="uid://dvsl8x3lb1h4e" path="res://maps/moutain.tscn" id="3_rbp35"]
 [ext_resource type="PackedScene" path="res://maps/cave.tscn" id="4_pc85h"]
 [ext_resource type="PackedScene" uid="uid://b61edh0bre65c" path="res://maps/ramp.tscn" id="5_dfm8h"]
 [ext_resource type="PackedScene" uid="uid://bl1widitqdugs" path="res://maps/obstacles.tscn" id="5_mi3we"]
@@ -26,7 +26,7 @@ volumetric_fog_emission = Color(0.407843, 0.415686, 0.439216, 1)
 volumetric_fog_detail_spread = 1.60766
 
 [sub_resource type="BoxMesh" id="BoxMesh_k23th"]
-material = ExtResource( "1_h84bv" )
+material = ExtResource( "1_lodye" )
 
 [sub_resource type="ConcavePolygonShape3D" id="ConcavePolygonShape3D_lld3w"]
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maps/moutain.tscn

@@ -1,9 +1,8 @@
-[gd_scene load_steps=3 format=3]
+[gd_scene load_steps=2 format=3 uid="uid://dvsl8x3lb1h4e"]
 
 [ext_resource type="PackedScene" uid="uid://bas4wwnjq76wm" path="res://maps/imports/moutain.gltf" id="1_afq06"]
-[ext_resource type="Material" path="res://maps/materials/simple_grid_world.material" id="2_pll6h"]
 
 [node name="moutain" instance=ExtResource( "1_afq06" )]
 
-[node name="moutain2" parent="." index="0"]
+[node name="moutain" parent="moutain2" index="0"]
-material_override = ExtResource( "2_pll6h" )
+visible = false

maps/shaders/base_ground.gdshader

@@ -0,0 +1,89 @@
+// NOTE: Shader automatically converted from Godot Engine 4.0.alpha2's StandardMaterial3D.
+
+shader_type spatial;
+render_mode blend_mix,depth_draw_opaque,cull_back,diffuse_burley,specular_schlick_ggx;
+uniform vec4 albedo : hint_color;
+uniform sampler2D texture_albedo : hint_albedo,filter_linear_mipmap,repeat_enable;
+uniform float point_size : hint_range(0,128);
+uniform float roughness : hint_range(0,1);
+uniform sampler2D texture_metallic : hint_white,filter_linear_mipmap,repeat_enable;
+uniform vec4 metallic_texture_channel;
+uniform sampler2D texture_roughness : hint_roughness_gray,filter_linear_mipmap,repeat_enable;
+uniform float specular;
+uniform float metallic;
+uniform sampler2D texture_normal : hint_roughness_normal,filter_linear_mipmap,repeat_enable;
+uniform float normal_scale : hint_range(-16,16);
+uniform sampler2D texture_heightmap : hint_black,filter_linear_mipmap,repeat_enable;
+uniform float heightmap_scale;
+uniform int heightmap_min_layers;
+uniform int heightmap_max_layers;
+uniform vec2 heightmap_flip;
+uniform vec3 uv1_scale;
+uniform vec3 uv1_offset;
+uniform vec3 uv2_scale;
+uniform vec3 uv2_offset;
+
+vec4 hash4( vec2 p ) { return fract(sin(vec4( 1.0+dot(p,vec2(37.0,17.0)), 
+                                              2.0+dot(p,vec2(11.0,47.0)),
+                                              3.0+dot(p,vec2(41.0,29.0)),
+                                              4.0+dot(p,vec2(23.0,31.0))))*103.0); }
+
+vec4 reduce_tiling( sampler2D samp, in vec2 uv )
+{
+    vec2 iuv = floor( uv );
+    vec2 fuv = fract( uv );
+
+    // generate per-tile transform
+    vec4 ofa = hash4( iuv + vec2(0.0,0.0) );
+    vec4 ofb = hash4( iuv + vec2(1.0,0.0) );
+    vec4 ofc = hash4( iuv + vec2(0.0,1.0) );
+    vec4 ofd = hash4( iuv + vec2(1.0,1.0) );
+    
+    vec2 ddx = dFdx( uv );
+    vec2 ddy = dFdy( uv );
+
+    // transform per-tile uvs
+    ofa.zw = sign(ofa.zw-0.5);
+    ofb.zw = sign(ofb.zw-0.5);
+    ofc.zw = sign(ofc.zw-0.5);
+    ofd.zw = sign(ofd.zw-0.5);
+    
+    // uv's, and derivarives (for correct mipmapping)
+    vec2 uva = uv*ofa.zw + ofa.xy; vec2 ddxa = ddx*ofa.zw; vec2 ddya = ddy*ofa.zw;
+    vec2 uvb = uv*ofb.zw + ofb.xy; vec2 ddxb = ddx*ofb.zw; vec2 ddyb = ddy*ofb.zw;
+    vec2 uvc = uv*ofc.zw + ofc.xy; vec2 ddxc = ddx*ofc.zw; vec2 ddyc = ddy*ofc.zw;
+    vec2 uvd = uv*ofd.zw + ofd.xy; vec2 ddxd = ddx*ofd.zw; vec2 ddyd = ddy*ofd.zw;
+        
+    // fetch and blend
+    vec2 b = smoothstep(0.25,0.75,fuv);
+    
+    return mix( mix( textureGrad( samp, uva, ddxa, ddya ), 
+                     textureGrad( samp, uvb, ddxb, ddyb ), b.x ), 
+                mix( textureGrad( samp, uvc, ddxc, ddyc ),
+                     textureGrad( samp, uvd, ddxd, ddyd ), b.x), b.y );
+}
+
+void vertex() {
+	UV=UV*uv1_scale.xy+uv1_offset.xy;
+}
+
+
+void fragment() {
+	vec2 base_uv = UV;
+	{
+		vec3 view_dir = normalize(normalize(-VERTEX)*mat3(TANGENT*heightmap_flip.x,-BINORMAL*heightmap_flip.y,NORMAL));
+		float depth = 1.0 - reduce_tiling(texture_heightmap, base_uv).r;
+		vec2 ofs = base_uv - view_dir.xy * depth * heightmap_scale;
+		base_uv=ofs;
+	}
+	vec4 albedo_tex = reduce_tiling(texture_albedo,base_uv);
+	ALBEDO = albedo.rgb * albedo_tex.rgb;
+	float metallic_tex = dot(reduce_tiling(texture_metallic,base_uv),metallic_texture_channel);
+	METALLIC = metallic_tex * metallic;
+	vec4 roughness_texture_channel = vec4(0.333333,0.333333,0.333333,0.0);
+	float roughness_tex = dot(reduce_tiling(texture_roughness,base_uv),roughness_texture_channel);
+	ROUGHNESS = roughness_tex * roughness;
+	SPECULAR = specular;
+	NORMAL_MAP = reduce_tiling(texture_normal,base_uv).rgb;
+	NORMAL_MAP_DEPTH = normal_scale;
+}

maps/textures/base_ground_aa_01/base_ground_aa_01_basecolor.png.import

@@ -0,0 +1,36 @@
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+metadata={
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+roughness/src_normal=""
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+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/HDR_as_SRGB=false
+process/size_limit=0
+detect_3d/compress_to=0

maps/textures/base_ground_aa_01/base_ground_aa_01_height.png.import

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+process/fix_alpha_border=true
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+process/size_limit=0
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maps/textures/base_ground_aa_01/base_ground_aa_01_normal.png.import

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maps/water_space.tscn

@@ -1,12 +1,8 @@
-[gd_scene load_steps=3 format=3 uid="uid://ip4lkyho0gry"]
+[gd_scene load_steps=2 format=3 uid="uid://ip4lkyho0gry"]
 
 [ext_resource type="PackedScene" uid="uid://crseicp4voddt" path="res://maps/imports/water-space.gltf" id="1_htkji"]
-[ext_resource type="Material" uid="uid://cdijyqa881tvv" path="res://maps/materials/simple_grid_world.material" id="2_asppa"]
 
 [node name="water-space" instance=ExtResource( "1_htkji" )]
 
-[node name="water_space" parent="." index="0"]
-material_override = ExtResource( "2_asppa" )
-
 [node name="StaticBody3D" parent="water_space/water_space" index="0"]
 input_ray_pickable = false