Fixed grunk mask edge softening

src/shaders/debug_overlay.gdshader

@@ -0,0 +1,98 @@
+shader_type spatial;
+render_mode depth_prepass_alpha;
+
+group_uniforms gunk_material;
+uniform vec3 color_1: source_color = vec3(0.0, 0.03, 0.1);
+uniform vec3 color_2: source_color = vec3(0.0, 0.1, 0.3);
+uniform vec3 emission_color: source_color = vec3(0.25, 0.88, 1.0);
+uniform vec3 fresnel_color: source_color = vec3(0.25, 0.88, 1.0);
+
+uniform float pixellation = 128.0;
+uniform float time_pixellation = 30.0;
+
+uniform float roughness: hint_range(0.0, 1.0) = 0.15;
+uniform float specular_contribution = 0.8;
+uniform float emission_strength = 0.05;
+uniform float normal_scale = 1.0;
+uniform float fresnel_power = 4.0;
+uniform float fresnel_intensity = 0.0;
+uniform float bump_strength = 1.0;
+
+// Used ONLY by the gunk, does not affect the gunk mask.
+uniform vec2 uv_scale = vec2(1.0);
+
+uniform float time_scale = 1.0;
+
+uniform float edge_bleed = 0.25;
+
+uniform sampler2D gunk_mask;
+
+uniform highp sampler3D gunk_noise;
+uniform highp sampler3D gunk_normal_map;
+
+group_uniforms overlay;
+uniform sampler2D overlay_albedo: hint_default_transparent, filter_nearest;
+uniform sampler2D overlay_emission: hint_default_transparent, filter_nearest;
+uniform float overlay_emission_scale = 1.0;
+
+
+vec3 fresnel_glow(vec3 normal, vec3 view) {
+	float normal_angle = dot(normalize(normal), normalize(view));
+	return pow((1.0 - clamp(normal_angle, 0.0, 1.0)), fresnel_power) * fresnel_color * fresnel_intensity;
+}
+
+float hardstep(float value) {
+	float x = clamp(value, 0.0, 1.0);
+	return 0.5 * tanh( (20.0 * x - 10.0) * inversesqrt(x - x * x) ) + 0.5;
+}
+
+float bump_sample(vec2 uv, vec3 uvt, float dx, float dy) {
+	vec2 offset = vec2(dx / pixellation, dy / pixellation);
+	float height = texture(gunk_normal_map, uvt + vec3(offset, 0.0)).r;
+	float mask = texture(gunk_mask, uv + offset / uv_scale).r;
+	return height * smoothstep(1.0, 0.0, mask);
+}
+
+void fragment() {
+	vec2 local_uv = floor(UV * uv_scale * pixellation) / pixellation;
+	float local_time = floor(TIME * time_scale * time_pixellation) / time_pixellation;
+
+	// swirl
+	vec3 uvt = vec3(local_uv.x, local_uv.y, local_time);
+	uvt.x += sin(uvt.y * 1.54 * PI + uvt.z) * cos(uvt.y * 1.31 * PI + uvt.z) * 0.2;
+	uvt.y += cos(uvt.x * 1.74 * PI + uvt.z) * -sin(uvt.y * 1.64 * PI + uvt.z) * 0.2;
+
+
+	float value = texture(gunk_noise, uvt).r;
+	vec3 color = mix(color_1, color_2, value);
+	vec3 emission = (1.0 - value) * emission_color * emission_strength;
+
+	// overlay texture
+	vec4 overlay_color = texture(overlay_albedo, UV);
+	color = mix(color, overlay_color.rgb, overlay_color.a);
+	vec4 overlay_em = texture(overlay_emission, UV);
+	emission = mix(emission, overlay_em.rgb * overlay_emission_scale, overlay_em.a);
+
+	//ALBEDO = color.rgb;
+	//ROUGHNESS = value * roughness;
+	//EMISSION = emission;
+	//SPECULAR = 0.5 * inversesqrt(specular_contribution);
+
+	// Build normal map from bump map
+	float h_center = bump_sample(UV, uvt, 0.0, 0.0);
+	float h_right = bump_sample(UV, uvt, 1.0, 0.0);
+	float h_down = bump_sample(UV, uvt, 0.0, 1.0);
+	float dx = (h_center - h_right) * bump_strength;
+	float dy = (h_center - h_down) * bump_strength;
+	vec3 normal_diff_map = normalize(vec3(dx, dy, 1.0));
+	//NORMAL_MAP = normal_diff_map / 2.0 + 0.5;
+	ALBEDO = normal_diff_map / 2.0 + 0.5;
+
+	// add fresnel
+	//vec3 world_normal = mat3(TANGENT, BINORMAL, NORMAL) * (NORMAL_MAP * 2.0 - 1.0);
+	//ALBEDO += fresnel_glow(world_normal, VIEW);
+
+	// Hardish edge
+	//float mask = texture(gunk_mask, UV).r;
+	//ALPHA = hardstep(1.0 - mask + edge_bleed);
+}

src/shaders/debug_overlay.gdshader.uid

@@ -0,0 +1 @@
+uid://b6yhubgom14f7

src/shaders/gunk.gdshader

@@ -56,11 +56,6 @@ vec3 fresnel_glow(vec3 normal, vec3 view) {
 	return pow((1.0 - dot(normalize(normal), normalize(view))), fresnel_power) * fresnel_color * fresnel_intensity;
 }
 
-float hardstep(float value) {
-	float x = clamp(value, 0.0, 1.0);
-	return 0.5 * tanh( (20.0 * x - 10.0) * inversesqrt(x - x * x) ) + 0.5;
-}
-
 void fragment() {
 	float local_time = floor(TIME * time_scale * time_pixellation) / time_pixellation;
 	vec2 local_uv = floor(UV * uv_scale * pixellation) / pixellation + local_time * pan_speed;

src/shaders/gunk_overlay.gdshader

@@ -46,6 +46,13 @@ float hardstep(float value) {
 	return 0.5 * tanh( (20.0 * x - 10.0) * inversesqrt(x - x * x) ) + 0.5;
 }
 
+float bump_sample(vec2 uv, vec3 uvt, float dx, float dy) {
+	vec2 offset = vec2(dx / pixellation, dy / pixellation);
+	float height = texture(gunk_normal_map, uvt + vec3(offset, 0.0)).r;
+	float mask = texture(gunk_mask, uv + offset / uv_scale).r;
+	return height * smoothstep(1.0, 0.0, mask);
+}
+
 void fragment() {
 	vec2 local_uv = floor(UV * uv_scale * pixellation) / pixellation;
 	float local_time = floor(TIME * time_scale * time_pixellation) / time_pixellation;
@@ -71,26 +78,20 @@ void fragment() {
 	EMISSION = emission;
 	SPECULAR = 0.5 * inversesqrt(specular_contribution);
 
-
-	float mask = texture(gunk_mask, UV).r;
-	float edge_soften = smoothstep(1.0, 0.0, mask);
-
 	// Build normal map from bump map
-	float h_center = texture(gunk_normal_map, uvt).r;
+	float h_center = bump_sample(UV, uvt, 0.0, 0.0);
-	float h_right = texture(gunk_normal_map, uvt + vec3(1.0 / pixellation, 0.0, 0.0)).r;
+	float h_right = bump_sample(UV, uvt, 1.0, 0.0);
-	float h_down = texture(gunk_normal_map, uvt + vec3(0.0, 1.0 / pixellation, 0.0)).r;
+	float h_down = bump_sample(UV, uvt, 0.0, 1.0);
-	float dx = (h_right - h_center) * bump_strength;
+	float dx = (h_center - h_right) * bump_strength;
-	float dy = (h_down - h_center) * bump_strength;
+	float dy = (h_center - h_down) * bump_strength;
-	vec3 normal_diff_map = normalize(vec3(-dx, -dy, 1.0));
+	vec3 normal_diff_map = normalize(vec3(dx, dy, 1.0));
 	NORMAL_MAP = normal_diff_map / 2.0 + 0.5;
 
-	// soften edges
-	NORMAL_MAP *= edge_soften;
-
 	// add fresnel
 	vec3 world_normal = mat3(TANGENT, BINORMAL, NORMAL) * (NORMAL_MAP * 2.0 - 1.0);
 	ALBEDO += fresnel_glow(world_normal, VIEW);
 
 	// Hardish edge
+	float mask = texture(gunk_mask, UV).r;
 	ALPHA = hardstep(1.0 - mask + edge_bleed);
 }

src/world/mechanics/listener/listener_model.tscn

@@ -52,13 +52,18 @@ shader = ExtResource("4_q7kpl")
 shader_parameter/color_1 = Color(0, 0.03, 0.1, 1)
 shader_parameter/color_2 = Color(0, 0.1, 0.3, 1)
 shader_parameter/emission_color = Color(0.25, 0.88, 1, 1)
+shader_parameter/fresnel_color = Color(0.25, 0.88, 1, 1)
 shader_parameter/pixellation = 128.0
 shader_parameter/time_pixellation = 30.0
 shader_parameter/roughness = 0.15
 shader_parameter/specular_contribution = 0.8
 shader_parameter/emission_strength = 0.02
 shader_parameter/normal_scale = 1.0
+shader_parameter/fresnel_power = 4.0
+shader_parameter/fresnel_intensity = 0.0
+shader_parameter/bump_strength = 10.0
 shader_parameter/uv_scale = Vector2(2, 2)
+shader_parameter/pan_speed = Vector2(0, 0)
 shader_parameter/time_scale = 0.2
 shader_parameter/gunk_noise = SubResource("NoiseTexture3D_2roq2")
 shader_parameter/gunk_normal_map = SubResource("NoiseTexture3D_fk1xc")
@@ -116,13 +121,18 @@ shader = ExtResource("4_q7kpl")
 shader_parameter/color_1 = Color(0, 0.03, 0.1, 1)
 shader_parameter/color_2 = Color(0, 0.1, 0.3, 1)
 shader_parameter/emission_color = Color(0.66, 0.943333, 1, 1)
+shader_parameter/fresnel_color = Color(0.25, 0.88, 1, 1)
 shader_parameter/pixellation = 128.0
 shader_parameter/time_pixellation = 30.0
 shader_parameter/roughness = 0.15
 shader_parameter/specular_contribution = 0.8
 shader_parameter/emission_strength = 0.2
 shader_parameter/normal_scale = 1.0
+shader_parameter/fresnel_power = 4.0
+shader_parameter/fresnel_intensity = 0.0
+shader_parameter/bump_strength = 10.0
 shader_parameter/uv_scale = Vector2(2, 2)
+shader_parameter/pan_speed = Vector2(0, 0)
 shader_parameter/time_scale = 0.2
 shader_parameter/gunk_noise = SubResource("NoiseTexture3D_pp7wn")
 shader_parameter/gunk_normal_map = SubResource("NoiseTexture3D_c5snp")

src/world/world.tscn

@@ -4,7 +4,7 @@
 [ext_resource type="Resource" uid="uid://tgac5tnfx56r" path="res://src/world/world_manager.tres" id="2_5kmgb"]
 [ext_resource type="PackedScene" uid="uid://byvjsvavbg5xe" path="res://src/ui/menus/pause_menu/pause_menu.tscn" id="2_6fy3g"]
 [ext_resource type="Resource" uid="uid://0i72bf8ip1lx" path="res://src/world/spook_manager.tres" id="3_l0av5"]
-[ext_resource type="PackedScene" uid="uid://dc4tts6342cuj" path="res://levels/prop_test/prop_test.tscn" id="4_5kmgb"]
+[ext_resource type="PackedScene" uid="uid://b8rv6dg4tgaeb" path="res://levels/mechanic_test/mechanic_test.tscn" id="4_5kmgb"]
 [ext_resource type="PackedScene" uid="uid://c0uitm5cg88h1" path="res://src/ui/menus/kill_screen/kill_screen.tscn" id="6_l0av5"]
 [ext_resource type="PackedScene" uid="uid://brknr57xc2cp0" path="res://src/ui/elements/save_icon/save_icon.tscn" id="7_5kmgb"]