18.5

assets/fire/fire.gd

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+extends Node3D
+
+signal fire_destroyed()
+
+func _on_area_3d_area_entered(area: Area3D) -> void:
+	fire_destroyed.emit()
+	self.queue_free()
+	
+	
+func _ready() -> void:
+	var shader_mat := $GPUParticles3D.material_override as ShaderMaterial
+	print(scale.x)
+	shader_mat.set_shader_parameter("scale", scale.x)

assets/fire/fire.gd.uid

@@ -0,0 +1 @@
+uid://ditgg1m25jqb

assets/fire/fire.gdshader

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+shader_type spatial;
+render_mode unshaded, cull_disabled;
+uniform sampler2D fire_tex_1;
+uniform sampler2D fire_tex_2;
+uniform sampler2D fire_mask;
+uniform vec4 inner_color;
+uniform vec4 outer_color;
+// fire uniforms
+uniform float detail_strength = 3.0;
+uniform float scroll_speed = 1.2;
+uniform float fire_height = 1.0;
+uniform float fire_shape = 1.5;
+uniform float fire_thickness = 0.55;
+uniform float fire_sharpness = 1.0;
+uniform float intensity = 1.0;
+
+// noise uniforms
+uniform int noise_octaves = 6;
+uniform float noise_lacunarity = 3.0;
+uniform float noise_gain = 0.5;
+uniform float noise_amplitude = 1.0;
+uniform float noise_frequency = 1.5;
+uniform float scale = 1.0;
+
+
+float hash(vec2 p) {
+    p = fract(p * 0.3183099 + vec2(0.1, 0.1));
+    p *= 17.0;
+    return fract(p.x * p.y * (p.x + p.y));
+}
+
+float noise(vec2 x) {
+    vec2 p = floor(x);
+    vec2 f = fract(x);
+
+    float n = 
+        hash(p)       * (1.0 - f.x) * (1.0 - f.y) +
+        hash(p + vec2(1.0, 0.0)) * f.x * (1.0 - f.y) +
+        hash(p + vec2(0.0, 1.0)) * (1.0 - f.x) * f.y +
+        hash(p + vec2(1.0, 1.0)) * f.x * f.y;
+
+    return n;
+}
+
+float fbm(vec2 p) {
+	int octaves = noise_octaves;
+ 	float lacunarity = noise_lacunarity;
+ 	float gain = noise_gain;
+ 	float amplitude = noise_amplitude;
+ 	float frequency = noise_frequency;
+	float total = 0.0;
+	
+    for (int i = 0; i < octaves; i++) {
+        total += noise(p * frequency) * amplitude;
+        frequency *= lacunarity;
+        amplitude *= gain;
+    }
+
+    return total * 0.5;
+}
+
+
+float random (vec2 uv) {
+    return fract(sin(dot(uv.xy,
+        vec2(12.9898,78.233))) * 43758.5453123);
+}
+void vertex() {
+	VERTEX *= scale;
+    mat4 modified_model_view = VIEW_MATRIX * mat4(
+        INV_VIEW_MATRIX[0],
+        MODEL_MATRIX[1],
+        INV_VIEW_MATRIX[2],
+        MODEL_MATRIX[3]
+    );
+	
+    MODELVIEW_MATRIX = modified_model_view;
+}
+
+
+void fragment() {
+vec2 uv = UV;
+
+	// modified_uv for offset and animating UVs for fire    
+    vec2 modified_uv = -uv;
+	modified_uv.x = mod(modified_uv.x, 1.0) - 0.5;
+    modified_uv.y += 0.84; // size vertical
+    
+	// fire noise scroll effect
+	float scroll = scroll_speed * detail_strength * TIME;
+	
+	// sample noise for fire
+	float n = fbm(detail_strength * modified_uv - vec2(0.0, scroll));
+
+    // Threshold to create a mask-like edge
+    float mask2 = smoothstep(0.4, 0.6, n);
+	
+	vec3 noise_1 = texture(fire_tex_1, vec2(UV.x, UV.y + TIME * 0.7)).rgb * n;
+    vec3 noise_2 = texture(fire_tex_2, vec2(UV.x, UV.y + TIME * 1.2)).rgb * n;
+    vec3 mask = texture(fire_mask, UV).rgb - 0.2;
+	vec3 col = (noise_1 + noise_2) * mask * mask2;
+	
+	float fire_intensity = intensity - 16.0 * fire_sharpness * pow(
+		max(
+			0.0,
+			length(
+				modified_uv * vec2((1.0 / fire_thickness) + modified_uv.y * fire_shape, 1.0 / fire_height)
+			) - n * max(0.0, modified_uv.y + 0.25)
+		),
+		1.2
+	);
+	float fire_intensity1 = n * fire_intensity * (1.5 - pow(1.0 * uv.y, 14.0));
+	float alpha = fire_intensity * (1.0 - pow(uv.y, 3.0));
+    fire_intensity1 = clamp(fire_intensity1, 0.0, 1.0);
+	
+    ALBEDO = vec3(step(0.015, col.r));
+    ALBEDO *= mix(outer_color.rgb, inner_color.rgb, step(0.15, col.r)) * alpha;
+    ALPHA = step(0.015, col.r) * (alpha * 2.0);
+}
+
+//void light() {
+//	// Called for every pixel for every light affecting the material.
+//	// Uncomment to replace the default light processing function with this one.
+//}

assets/fire/fire.gdshader.uid

@@ -0,0 +1 @@
+uid://dh1ojfq5wjssr

assets/fire/fire.tscn

@@ -0,0 +1,60 @@
+[gd_scene load_steps=11 format=3 uid="uid://cd400imcxfedx"]
+
+[ext_resource type="Shader" uid="uid://dh1ojfq5wjssr" path="res://assets/fire/fire.gdshader" id="1_7tybv"]
+[ext_resource type="Script" uid="uid://ditgg1m25jqb" path="res://assets/fire/fire.gd" id="1_2358p"]
+[ext_resource type="Texture2D" uid="uid://bjhe12vumm36l" path="res://assets/fire/fire_mask.png" id="2_u4s6h"]
+[ext_resource type="Texture2D" uid="uid://q2qah83jlqud" path="res://assets/fire/fire_tex_1.png" id="3_2358p"]
+[ext_resource type="Texture2D" uid="uid://l3yqk4echy8y" path="res://assets/fire/fire_tex_2.png" id="4_hmhxn"]
+[ext_resource type="PackedScene" uid="uid://bn6uprm55d3tt" path="res://game/game_state.tscn" id="6_hmhxn"]
+
+[sub_resource type="ShaderMaterial" id="ShaderMaterial_4depb"]
+render_priority = 0
+shader = ExtResource("1_7tybv")
+shader_parameter/fire_tex_1 = ExtResource("3_2358p")
+shader_parameter/fire_tex_2 = ExtResource("4_hmhxn")
+shader_parameter/fire_mask = ExtResource("2_u4s6h")
+shader_parameter/inner_color = Vector4(1.079, 0.638, 0.168, 0.82)
+shader_parameter/outer_color = Vector4(0.988, 0.357, 0.259, 0)
+shader_parameter/detail_strength = 3.0
+shader_parameter/scroll_speed = 1.2
+shader_parameter/fire_height = 1.0
+shader_parameter/fire_shape = 1.5
+shader_parameter/fire_thickness = 0.55
+shader_parameter/fire_sharpness = 1.0
+shader_parameter/intensity = 1.0
+shader_parameter/noise_octaves = 6
+shader_parameter/noise_lacunarity = 3.0
+shader_parameter/noise_gain = 0.5
+shader_parameter/noise_amplitude = 1.0
+shader_parameter/noise_frequency = 1.5
+shader_parameter/scale = 1.0
+
+[sub_resource type="ParticleProcessMaterial" id="ParticleProcessMaterial_pbcvv"]
+gravity = Vector3(0, 0, 0)
+
+[sub_resource type="QuadMesh" id="QuadMesh_7tybv"]
+
+[sub_resource type="SphereShape3D" id="SphereShape3D_u4s6h"]
+radius = 0.17174505
+
+[node name="Fire" type="Node3D"]
+script = ExtResource("1_2358p")
+
+[node name="GPUParticles3D" type="GPUParticles3D" parent="."]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.38733134, 0)
+material_override = SubResource("ShaderMaterial_4depb")
+amount = 1
+lifetime = 5.0
+process_material = SubResource("ParticleProcessMaterial_pbcvv")
+draw_pass_1 = SubResource("QuadMesh_7tybv")
+
+[node name="Area3D" type="Area3D" parent="."]
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="Area3D"]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.07229382, 0)
+shape = SubResource("SphereShape3D_u4s6h")
+
+[node name="GameState" parent="." instance=ExtResource("6_hmhxn")]
+
+[connection signal="fire_destroyed" from="." to="GameState" method="_on_fire_fire_destroyed"]
+[connection signal="area_entered" from="Area3D" to="." method="_on_area_3d_area_entered"]

assets/fire/fire_mask.png.import

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+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://bjhe12vumm36l"
+path.s3tc="res://.godot/imported/fire_mask.png-7b2abd2b81f7d797a8f5555e2eeb7d71.s3tc.ctex"
+path.etc2="res://.godot/imported/fire_mask.png-7b2abd2b81f7d797a8f5555e2eeb7d71.etc2.ctex"
+metadata={
+"imported_formats": ["s3tc_bptc", "etc2_astc"],
+"vram_texture": true
+}
+
+[deps]
+
+source_file="res://assets/fire/fire_mask.png"
+dest_files=["res://.godot/imported/fire_mask.png-7b2abd2b81f7d797a8f5555e2eeb7d71.s3tc.ctex", "res://.godot/imported/fire_mask.png-7b2abd2b81f7d797a8f5555e2eeb7d71.etc2.ctex"]
+
+[params]
+
+compress/mode=2
+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=true
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/channel_remap/red=0
+process/channel_remap/green=1
+process/channel_remap/blue=2
+process/channel_remap/alpha=3
+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=0

assets/fire/fire_tex_1.png.import

@@ -0,0 +1,42 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://q2qah83jlqud"
+path.s3tc="res://.godot/imported/fire_tex_1.png-cefef1e67bbb945a669896483220fb46.s3tc.ctex"
+path.etc2="res://.godot/imported/fire_tex_1.png-cefef1e67bbb945a669896483220fb46.etc2.ctex"
+metadata={
+"imported_formats": ["s3tc_bptc", "etc2_astc"],
+"vram_texture": true
+}
+
+[deps]
+
+source_file="res://assets/fire/fire_tex_1.png"
+dest_files=["res://.godot/imported/fire_tex_1.png-cefef1e67bbb945a669896483220fb46.s3tc.ctex", "res://.godot/imported/fire_tex_1.png-cefef1e67bbb945a669896483220fb46.etc2.ctex"]
+
+[params]
+
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+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=true
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/channel_remap/red=0
+process/channel_remap/green=1
+process/channel_remap/blue=2
+process/channel_remap/alpha=3
+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=0

assets/fire/fire_tex_2.png.import

@@ -0,0 +1,42 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://l3yqk4echy8y"
+path.s3tc="res://.godot/imported/fire_tex_2.png-7b804eaf97d0fd311b39db7905126cbf.s3tc.ctex"
+path.etc2="res://.godot/imported/fire_tex_2.png-7b804eaf97d0fd311b39db7905126cbf.etc2.ctex"
+metadata={
+"imported_formats": ["s3tc_bptc", "etc2_astc"],
+"vram_texture": true
+}
+
+[deps]
+
+source_file="res://assets/fire/fire_tex_2.png"
+dest_files=["res://.godot/imported/fire_tex_2.png-7b804eaf97d0fd311b39db7905126cbf.s3tc.ctex", "res://.godot/imported/fire_tex_2.png-7b804eaf97d0fd311b39db7905126cbf.etc2.ctex"]
+
+[params]
+
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+compress/high_quality=false
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+compress/uastc_level=0
+compress/rdo_quality_loss=0.0
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+process/hdr_as_srgb=false
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+process/size_limit=0
+detect_3d/compress_to=0

assets/fire/gpu_particles_3d.gd

@@ -0,0 +1,4 @@
+extends GPUParticles3D
+
+func _process(delta: float) -> void:
+	self.process_material.set("shader_parameter/fire_mask", Texture2D.new());

assets/fire/gpu_particles_3d.gd.uid

@@ -0,0 +1 @@
+uid://ckylavsg60e7i