built more assets and started playing with foliage painting

addons/dreadpon.spatial_gardener/shaders/sh_circle_brush.gdshader

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+shader_type spatial;
+render_mode blend_mix,cull_disabled,unshaded,depth_draw_opaque,depth_test_disabled;
+
+
+// Base color + opacity
+uniform vec4 albedo : source_color;
+
+
+void fragment() {
+	ALBEDO = albedo.rgb;
+	
+	if (length(UV - vec2(0.5)) > 0.5) {
+		discard;
+	}
+	
+	// Fancy dithered alpha stuff
+	float opacity = albedo.a;
+	int x = int(FRAGCOORD.x) % 4;
+	int y = int(FRAGCOORD.y) % 4;
+	int index = x + y * 4;
+	float limit = 0.0;
+	
+	if (x < 8) {
+		if (index == 0) limit = 0.0625;
+		if (index == 1) limit = 0.5625;
+		if (index == 2) limit = 0.1875;
+		if (index == 3) limit = 0.6875;
+		if (index == 4) limit = 0.8125;
+		if (index == 5) limit = 0.3125;
+		if (index == 6) limit = 0.9375;
+		if (index == 7) limit = 0.4375;
+		if (index == 8) limit = 0.25;
+		if (index == 9) limit = 0.75;
+		if (index == 10) limit = 0.125;
+		if (index == 11) limit = 0.625;
+		if (index == 12) limit = 1.0;
+		if (index == 13) limit = 0.5;
+		if (index == 14) limit = 0.875;
+		if (index == 15) limit = 0.375;
+	}
+	// Skip drawing a pixel below the opacity limit
+	if (opacity < limit)
+		discard;
+}

addons/dreadpon.spatial_gardener/shaders/sh_sphere_brush.gdshader

@@ -0,0 +1,58 @@
+shader_type spatial;
+render_mode blend_mix,cull_disabled,unshaded,depth_draw_opaque;
+
+
+// Base color + opacity
+uniform vec4 albedo : source_color;
+// Brush diameter
+uniform float proximity_multiplier = 1.0;
+// Distance at which proximity highlight occurs
+uniform float proximity_treshold = 0.4;
+// Depth texture
+uniform sampler2D depth_texture : hint_depth_texture;
+
+
+void fragment() {
+	ALBEDO = albedo.rgb;
+	
+	// Fancy dithered alpha stuff
+	float opacity = albedo.a;
+	int x = int(FRAGCOORD.x) % 4;
+	int y = int(FRAGCOORD.y) % 4;
+	int index = x + y * 4;
+	float limit = 0.0;
+	
+	if (x < 8) {
+		if (index == 0) limit = 0.0625;
+		if (index == 1) limit = 0.5625;
+		if (index == 2) limit = 0.1875;
+		if (index == 3) limit = 0.6875;
+		if (index == 4) limit = 0.8125;
+		if (index == 5) limit = 0.3125;
+		if (index == 6) limit = 0.9375;
+		if (index == 7) limit = 0.4375;
+		if (index == 8) limit = 0.25;
+		if (index == 9) limit = 0.75;
+		if (index == 10) limit = 0.125;
+		if (index == 11) limit = 0.625;
+		if (index == 12) limit = 1.0;
+		if (index == 13) limit = 0.5;
+		if (index == 14) limit = 0.875;
+		if (index == 15) limit = 0.375;
+	}
+	// Skip drawing a pixel below the opacity limit
+	if (opacity < limit)
+		discard;
+	
+	// Proximity highlight to make brush bounds more visible in the scene
+	float depth_tex = texture(depth_texture, SCREEN_UV).x;
+	// fix from https://www.reddit.com/r/godot/comments/wb0jw7/godot_4_alpha_12_depth_texture_not_working/
+	// depth texture in 4.0 is automaticaly within neccessary range
+	vec3 ndc = vec3(SCREEN_UV * 2.0 - 1.0, texture(depth_texture,SCREEN_UV).x);
+	vec4 view = INV_PROJECTION_MATRIX * vec4(SCREEN_UV * 2.0 - 1.0, depth_tex, 1.0);
+	view.xyz /= view.w;
+	float proximity = 1.0 - clamp(1.0 - smoothstep(view.z + proximity_treshold * proximity_multiplier, view.z, VERTEX.z), 0.0, 1.0);
+	
+	// Highlight pixels that are close to other geometry
+	ALBEDO = clamp(ALBEDO + vec3(proximity * 0.5), 0.0, 1.0);
+}

addons/dreadpon.spatial_gardener/shaders/shm_circle_brush.tres

@@ -0,0 +1,8 @@
+[gd_resource type="ShaderMaterial" load_steps=2 format=3 uid="uid://dgfk5ryw7qatd"]
+
+[ext_resource type="Shader" path="res://addons/dreadpon.spatial_gardener/shaders/sh_circle_brush.gdshader" id="1"]
+
+[resource]
+render_priority = 0
+shader = ExtResource("1")
+shader_parameter/albedo = Color(0.172549, 0.32549, 0.65098, 0.501961)

addons/dreadpon.spatial_gardener/shaders/shm_sphere_brush.tres

@@ -0,0 +1,10 @@
+[gd_resource type="ShaderMaterial" load_steps=2 format=3 uid="uid://ldawlc0e5u8w"]
+
+[ext_resource type="Shader" path="res://addons/dreadpon.spatial_gardener/shaders/sh_sphere_brush.gdshader" id="1"]
+
+[resource]
+render_priority = 0
+shader = ExtResource("1")
+shader_parameter/albedo = Color(0.172549, 0.32549, 0.65098, 0.501961)
+shader_parameter/proximity_multiplier = 1.0
+shader_parameter/proximity_treshold = 0.4