[gd_scene load_steps=7 format=3 uid="uid://cpap2mt61s2m"]

[sub_resource type="Shader" id="Shader_opj16"]
code = "// NOTE: Shader automatically converted from Godot Engine 4.2.1.stable's StandardMaterial3D.

shader_type spatial;
render_mode blend_mix,depth_draw_opaque,cull_back,unshaded;
uniform vec4 albedo : source_color;
uniform sampler2D texture_albedo : source_color,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_default_white,filter_linear_mipmap,repeat_enable;
uniform vec4 metallic_texture_channel;
uniform sampler2D texture_roughness : hint_roughness_r,filter_linear_mipmap,repeat_enable;
uniform float specular;
uniform float metallic;
uniform int particles_anim_h_frames;
uniform int particles_anim_v_frames;
uniform bool particles_anim_loop;
uniform vec3 uv1_scale;
uniform vec3 uv1_offset;
uniform vec3 uv2_scale;
uniform vec3 uv2_offset;

uniform sampler2D life_alpha : repeat_disable;

varying float life;

void vertex() {
	life = INSTANCE_CUSTOM.y;
	UV=UV*uv1_scale.xy+uv1_offset.xy;
	mat4 mat_world = mat4(normalize(INV_VIEW_MATRIX[0]), normalize(INV_VIEW_MATRIX[1]) ,normalize(INV_VIEW_MATRIX[2]), MODEL_MATRIX[3]);
	mat_world = mat_world * mat4(vec4(cos(INSTANCE_CUSTOM.x), -sin(INSTANCE_CUSTOM.x), 0.0, 0.0), vec4(sin(INSTANCE_CUSTOM.x), cos(INSTANCE_CUSTOM.x), 0.0, 0.0), vec4(0.0, 0.0, 1.0, 0.0), vec4(0.0, 0.0, 0.0, 1.0));
	MODELVIEW_MATRIX = VIEW_MATRIX * mat_world;
	MODELVIEW_NORMAL_MATRIX = mat3(MODELVIEW_MATRIX);
	float h_frames = float(particles_anim_h_frames);
	float v_frames = float(particles_anim_v_frames);
	float particle_total_frames = float(particles_anim_h_frames * particles_anim_v_frames);
	float particle_frame = floor(INSTANCE_CUSTOM.z * float(particle_total_frames));
	if (!particles_anim_loop) {
		particle_frame = clamp(particle_frame, 0.0, particle_total_frames - 1.0);
	} else {
		particle_frame = mod(particle_frame, particle_total_frames);
	}
	UV /= vec2(h_frames, v_frames);
	UV += vec2(mod(particle_frame, h_frames) / h_frames, floor((particle_frame + 0.5) / h_frames) / v_frames);
}





void fragment() {
	if (length(UV - vec2(0.5)) > 0.05) {
		discard;
	}
	vec2 base_uv = UV;
	vec4 albedo_tex = texture(texture_albedo,base_uv);
	ALBEDO = albedo.rgb * albedo_tex.rgb;
	float metallic_tex = dot(texture(texture_metallic,base_uv),metallic_texture_channel);
	METALLIC = metallic_tex * metallic;
	vec4 roughness_texture_channel = vec4(1.0,0.0,0.0,0.0);
	float roughness_tex = dot(texture(texture_roughness,base_uv),roughness_texture_channel);
	ROUGHNESS = roughness_tex * roughness;
	SPECULAR = specular;
	ALPHA = texture(life_alpha, vec2(life)).r;
}
"

[sub_resource type="Curve" id="Curve_x40c4"]
_data = [Vector2(0, 1), 0.0, 0.0, 0, 0, Vector2(0.904632, 0.855861), 0.0, 0.0, 0, 0, Vector2(1, 0), 0.0, 0.0, 0, 0]
point_count = 3

[sub_resource type="CurveTexture" id="CurveTexture_j7b0c"]
curve = SubResource("Curve_x40c4")

[sub_resource type="ShaderMaterial" id="ShaderMaterial_cn13f"]
render_priority = 0
shader = SubResource("Shader_opj16")
shader_parameter/albedo = Color(1, 1, 1, 1)
shader_parameter/point_size = 1.0
shader_parameter/roughness = 1.0
shader_parameter/metallic_texture_channel = Vector4(0, 0, 0, 0)
shader_parameter/specular = 0.5
shader_parameter/metallic = 0.0
shader_parameter/particles_anim_h_frames = 1
shader_parameter/particles_anim_v_frames = 1
shader_parameter/particles_anim_loop = false
shader_parameter/uv1_scale = Vector3(1, 1, 1)
shader_parameter/uv1_offset = Vector3(0, 0, 0)
shader_parameter/uv2_scale = Vector3(1, 1, 1)
shader_parameter/uv2_offset = Vector3(0, 0, 0)
shader_parameter/life_alpha = SubResource("CurveTexture_j7b0c")

[sub_resource type="ParticleProcessMaterial" id="ParticleProcessMaterial_c4a1g"]
emission_shape = 3
emission_box_extents = Vector3(10, 0, 2)
turbulence_enabled = true
turbulence_noise_strength = 0.05
turbulence_noise_scale = 2.756

[sub_resource type="QuadMesh" id="QuadMesh_sfy6f"]

[node name="GPUParticles3D" type="GPUParticles3D"]
material_override = SubResource("ShaderMaterial_cn13f")
amount = 300
lifetime = 10.0
preprocess = 10.0
local_coords = true
process_material = SubResource("ParticleProcessMaterial_c4a1g")
draw_pass_1 = SubResource("QuadMesh_sfy6f")