Missile with Exhaust Effects
Created a missile model with 4 exhausts in Blender and imported it with collision shapes (not tested yet if they work). Created an exhaust shader with a simple particle trail. The shader that creates the exhaust flame can be adapted to the missile burn power.main
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8b25efe822
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After Width: | Height: | Size: 110 KiB |
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[remap]
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importer="texture"
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type="StreamTexture"
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path.s3tc="res://.import/missile_albedo.png-2cb94eaa9de484fd50d1215f51f806b4.s3tc.stex"
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path.etc2="res://.import/missile_albedo.png-2cb94eaa9de484fd50d1215f51f806b4.etc2.stex"
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metadata={
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"imported_formats": [ "s3tc", "etc2" ],
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"vram_texture": true
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}
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[deps]
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source_file="res://assets/entities/missile/missile_albedo.png"
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dest_files=[ "res://.import/missile_albedo.png-2cb94eaa9de484fd50d1215f51f806b4.s3tc.stex", "res://.import/missile_albedo.png-2cb94eaa9de484fd50d1215f51f806b4.etc2.stex" ]
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[params]
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compress/mode=2
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compress/lossy_quality=0.7
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compress/hdr_mode=0
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compress/bptc_ldr=0
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compress/normal_map=0
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flags/repeat=true
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flags/filter=true
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flags/mipmaps=true
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flags/anisotropic=false
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flags/srgb=1
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process/fix_alpha_border=true
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process/premult_alpha=false
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process/HDR_as_SRGB=false
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process/invert_color=false
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process/normal_map_invert_y=false
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stream=false
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size_limit=0
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detect_3d=false
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svg/scale=1.0
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extends Area
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onready var turret_main = get_node("../../../../")
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var seen_nodes = []
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func body_entered(body: Node):
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print(body.name+" just entered the vision!")
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seen_nodes.append(body)
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func body_exited(body: Node):
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seen_nodes.remove(body)
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func _ready():
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pass
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extends Spatial
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onready var exhaust_node = $Exhaust;
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var exhausts = ["Exhaust", "Exhaust2", "Exhaust3", "Exhaust4"]
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func change_engine_power(power):
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var MAX_POWER = 10;
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print("Changing missile exhaust to: ", power);
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for e in exhausts:
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var node: MeshInstance = exhaust_node.get_node("./"+e);
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node.get_active_material(0).set_shader_param("power", clamp(power, .0, MAX_POWER));
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func _ready():
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pass;
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#change_engine_power(10);
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[gd_scene load_steps=13 format=2]
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[ext_resource path="res://assets/entities/missile/missile.glb" type="PackedScene" id=1]
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[ext_resource path="res://assets/entities/missile/missile_albedo.png" type="Texture" id=2]
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[ext_resource path="res://scenes/entities/missile.gd" type="Script" id=3]
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[ext_resource path="res://scenes/entities/missiles/missile_exhaust.gdshader" type="Shader" id=4]
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[sub_resource type="SpatialMaterial" id=2]
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albedo_texture = ExtResource( 2 )
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metallic = 1.0
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roughness = 0.41
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[sub_resource type="CapsuleShape" id=1]
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height = 10.1286
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[sub_resource type="ShaderMaterial" id=8]
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shader = ExtResource( 4 )
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shader_param/ANIM_SPEED = 100.0
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shader_param/hot_color = Color( 0.9, 0.9, 9, 0.5 )
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shader_param/cold_color = Color( 1, 1, 1, 0 )
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shader_param/power = 1.0
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[sub_resource type="SphereMesh" id=9]
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material = SubResource( 8 )
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radius = 0.35
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height = 0.5
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radial_segments = 128
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rings = 64
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[sub_resource type="ParticlesMaterial" id=3]
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emission_shape = 1
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emission_sphere_radius = 0.25
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gravity = Vector3( 0, 40, 0 )
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[sub_resource type="Shader" id=5]
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code = "shader_type spatial;
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render_mode depth_draw_opaque, unshaded, shadows_disabled;
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uniform float MIX = 1.;
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uniform float particle_alpha: hint_range(0.0, 1.0) = 1.0;
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uniform vec4 top_color: hint_color = vec4(.2, .5, .8, 0.3);
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uniform vec4 bot_color: hint_color = vec4(.2, .5, .8, 1);
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void fragment() {
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vec4 exhaust_color = mix(top_color, bot_color, .5);
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ALPHA = exhaust_color.a;
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ALBEDO = exhaust_color.rgb;
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}
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"
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[sub_resource type="ShaderMaterial" id=6]
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shader = SubResource( 5 )
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shader_param/MIX = 1.0
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shader_param/particle_alpha = 1.0
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shader_param/top_color = Color( 0.2, 0.5, 0.8, 0.3 )
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shader_param/bot_color = Color( 0.2, 0.5, 0.8, 1 )
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[sub_resource type="SphereMesh" id=4]
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material = SubResource( 6 )
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radius = 0.025
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height = 0.05
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radial_segments = 32
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rings = 16
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[node name="missile" instance=ExtResource( 1 )]
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script = ExtResource( 3 )
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[node name="missile body" parent="." index="0"]
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material/0 = SubResource( 2 )
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[node name="RigidBody" type="RigidBody" parent="." index="1"]
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[node name="CollisionShape" type="CollisionShape" parent="RigidBody" index="0"]
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transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0.371096 )
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shape = SubResource( 1 )
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[node name="Exhaust" type="Spatial" parent="." index="2"]
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transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, -4.901 )
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[node name="Exhaust" type="MeshInstance" parent="Exhaust" index="0"]
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transform = Transform( 1, 0, 0, 0, -4.37114e-08, -1, 0, 1, -4.37114e-08, 0.5, 0.5, 0.1 )
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mesh = SubResource( 9 )
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[node name="Particles" type="Particles" parent="Exhaust/Exhaust" index="0"]
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visible = false
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cast_shadow = 0
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amount = 50
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lifetime = 3.0
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visibility_aabb = AABB( nan, 0.05694, -7.38708, 0.867362, 0.904675, 14.7742 )
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process_material = SubResource( 3 )
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draw_pass_1 = SubResource( 4 )
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[node name="Exhaust2" type="MeshInstance" parent="Exhaust" index="1"]
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transform = Transform( 1, 0, 0, 0, -4.37114e-08, -1, 0, 1, -4.37114e-08, -0.5, 0.5, 0.1 )
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mesh = SubResource( 9 )
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skeleton = NodePath("../Exhaust")
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[node name="Particles" type="Particles" parent="Exhaust/Exhaust2" index="0"]
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visible = false
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cast_shadow = 0
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amount = 50
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lifetime = 3.0
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visibility_aabb = AABB( nan, 0.05694, -7.38708, 0.867362, 0.904675, 14.7742 )
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process_material = SubResource( 3 )
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draw_pass_1 = SubResource( 4 )
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[node name="Exhaust3" type="MeshInstance" parent="Exhaust" index="2"]
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transform = Transform( 1, 0, 0, 0, -4.37114e-08, -1, 0, 1, -4.37114e-08, 0.5, -0.5, 0.1 )
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mesh = SubResource( 9 )
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skeleton = NodePath("../Exhaust2")
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[node name="Particles" type="Particles" parent="Exhaust/Exhaust3" index="0"]
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transform = Transform( 1, 0, 0, 0, -1, 8.74228e-08, 0, -8.74228e-08, -1, 0, 0, 0 )
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visible = false
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cast_shadow = 0
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amount = 50
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lifetime = 3.0
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visibility_aabb = AABB( nan, 0.05694, -7.38708, 0.867362, 0.904675, 14.7742 )
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process_material = SubResource( 3 )
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draw_pass_1 = SubResource( 4 )
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[node name="Exhaust4" type="MeshInstance" parent="Exhaust" index="3"]
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transform = Transform( 1, 0, 0, 0, -4.37114e-08, -1, 0, 1, -4.37114e-08, -0.5, -0.5, 0.1 )
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mesh = SubResource( 9 )
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skeleton = NodePath(".")
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[node name="Particles" type="Particles" parent="Exhaust/Exhaust4" index="0"]
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transform = Transform( 1, 0, 0, 0, -1, 8.74228e-08, 0, -8.74228e-08, -1, 0, 0, 0 )
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visible = false
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cast_shadow = 0
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amount = 50
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lifetime = 3.0
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visibility_aabb = AABB( nan, 0.05694, -7.38708, 0.867362, 0.904675, 14.7742 )
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process_material = SubResource( 3 )
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draw_pass_1 = SubResource( 4 )
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shader_type spatial;
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uniform float ANIM_SPEED = 100.0;
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uniform vec4 hot_color: hint_color = vec4(.9, .9, 9., .5);
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uniform vec4 cold_color: hint_color = vec4(1., 1., 1., 0.);
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uniform float power = 1.;
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void vertex() {
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float distance = sqrt(pow(VERTEX.z, 2) + pow(VERTEX.x, 2));
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VERTEX.y = min(sin(VERTEX.x * TIME * ANIM_SPEED) * power / (distance * 10. + 1.), 0.);
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vec4 exhaust_color = mix(hot_color, cold_color, VERTEX.y / 5.8);
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COLOR = exhaust_color;
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}
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void fragment() {
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ALPHA = COLOR.a;
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ALBEDO = COLOR.rgb;
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}
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[gd_scene load_steps=3 format=2]
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[sub_resource type="SphereMesh" id=1]
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radius = 0.2
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height = 0.2
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radial_segments = 32
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rings = 16
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[sub_resource type="CapsuleShape" id=2]
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radius = 0.13991
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height = 0.16003
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[node name="Projectile" type="Spatial"]
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[node name="MeshInstance" type="MeshInstance" parent="."]
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transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 0.5, 0, 0, 0 )
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mesh = SubResource( 1 )
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[node name="RigidBody" type="RigidBody" parent="."]
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[node name="CollisionShape" type="CollisionShape" parent="RigidBody"]
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transform = Transform( -4.37114e-08, 0, 1, 0, 1, 0, -1, 0, -4.37114e-08, 0, 0, 0 )
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shape = SubResource( 2 )
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[gd_resource type="ShaderMaterial" load_steps=2 format=2]
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[sub_resource type="Shader" id=2]
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code = "shader_type spatial;
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void vertex() {
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VERTEX.x += NORMAL.x * sin(40. * VERTEX.x) / 5.;
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}
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void fragment() {
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ALBEDO = vec3(.2, .6, .8);
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ROUGHNESS = .5;
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}"
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[resource]
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shader = SubResource( 2 )
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