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Turbulence Noise for Particle Material

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This commit is contained in:
Raffaele Picca 2021-11-26 15:18:46 +01:00
parent 5ab59ee7df
commit 9137ba7926
3 changed files with 369 additions and 22 deletions
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48
doc/classes/ParticlesMaterial.xml
View file

@ -266,6 +266,42 @@
<member name="tangential_accel_min" type="float" setter="set_param_min" getter="get_param_min" default="0.0">
Minimum tangential acceleration.
</member>
<member name="turbulence_active" type="bool" setter="set_turbulence_active" getter="get_turbulence_active" default="false">
Enables and disables Turbulence for the particle system.
</member>
<member name="turbulence_influence_max" type="float" setter="set_param_max" getter="get_param_max">
Minimum turbulence influence on each particle.
The actual amount of turbulence influence on each particle is calculated as a random value between [member turbulence_influence_min] and [member turbulence_influence_max] and multiplied by the amount of turbulence influence from [member turbulence_influence_over_life].
</member>
<member name="turbulence_influence_min" type="float" setter="set_param_min" getter="get_param_min">
Maximum turbulence influence on each particle.
The actual amount of turbulence influence on each particle is calculated as a random value between [member turbulence_influence_min] and [member turbulence_influence_max] and multiplied by the amount of turbulence influence from [member turbulence_influence_over_life].
</member>
<member name="turbulence_influence_over_life" type="Texture2D" setter="set_param_texture" getter="get_param_texture">
Each particle's amount of turbulence will be influenced along this [CurveTexture] over its life time.
</member>
<member name="turbulence_initial_displacement_max" type="float" setter="set_param_max" getter="get_param_max">
Maximum displacement of each particles spawn position by the turbulence.
The actual amount of displacement will be a factor of the underlying turbulence multiplied by a random value between [member turbulence_initial_displacement_min] and [member turbulence_initial_displacement_max].
</member>
<member name="turbulence_initial_displacement_min" type="float" setter="set_param_min" getter="get_param_min">
Minimum displacement of each particles spawn position by the turbulence.
The actual amount of displacement will be a factor of the underlying turbulence multiplied by a random value between [member turbulence_initial_displacement_min] and [member turbulence_initial_displacement_max].
</member>
<member name="turbulence_noise_scale" type="float" setter="set_turbulence_noise_scale" getter="get_turbulence_noise_scale">
This value controls the overall scale/frequency of the turbulence noise pattern.
A small scale will result in smaller features with more detail while a high scale will result in smoother noise with larger features.
</member>
<member name="turbulence_noise_speed" type="Vector3" setter="set_turbulence_noise_speed" getter="get_turbulence_noise_speed">
The movement speed of the turbulence pattern. This changes how quickly the noise changes over time.
A value of [code]Vector3(0.0, 0.0, 0.0)[/code] will freeze the turbulence pattern in place.
</member>
<member name="turbulence_noise_speed_random" type="float" setter="set_turbulence_noise_speed_random" getter="get_turbulence_noise_speed_random">
Use to influence the noise speed in a random pattern. This helps to break up visible movement patterns.
</member>
<member name="turbulence_noise_strength" type="float" setter="set_turbulence_noise_strength" getter="get_turbulence_noise_strength">
The turbulence noise strength. Increasing this will result in a stronger, more contrasting, noise pattern.
</member>
</members>
<constants>
<constant name="PARAM_INITIAL_LINEAR_VELOCITY" value="0" enum="Parameter">
@ -304,7 +340,7 @@
<constant name="PARAM_ANIM_OFFSET" value="11" enum="Parameter">
Use with [method set_param_min], [method set_param_max], and [method set_param_texture] to set animation offset properties.
</constant>
<constant name="PARAM_MAX" value="12" enum="Parameter">
<constant name="PARAM_MAX" value="15" enum="Parameter">
Represents the size of the [enum Parameter] enum.
</constant>
<constant name="PARTICLE_FLAG_ALIGN_Y_TO_VELOCITY" value="0" enum="ParticleFlags">
@ -343,6 +379,15 @@
<constant name="EMISSION_SHAPE_MAX" value="7" enum="EmissionShape">
Represents the size of the [enum EmissionShape] enum.
</constant>
<constant name="PARAM_TURB_VEL_INFLUENCE" value="13" enum="Parameter">
Use with [method set_param_min] and [method set_param_max] to set the turbulence minimum und maximum influence on each particles velocity.
</constant>
<constant name="PARAM_TURB_INIT_DISPLACEMENT" value="14" enum="Parameter">
Use with [method set_param_min] and [method set_param_max] to set the turbulence minimum and maximum displacement of the particles spawn position.
</constant>
<constant name="PARAM_TURB_INFLUENCE_OVER_LIFE" value="12" enum="Parameter">
Use with [method set_param_texture] to set the turbulence influence over the particles life time.
</constant>
<constant name="SUB_EMITTER_DISABLED" value="0" enum="SubEmitterMode">
</constant>
<constant name="SUB_EMITTER_CONSTANT" value="1" enum="SubEmitterMode">
@ -352,6 +397,7 @@
<constant name="SUB_EMITTER_AT_COLLISION" value="3" enum="SubEmitterMode">
</constant>
<constant name="SUB_EMITTER_MAX" value="4" enum="SubEmitterMode">
Represents the size of the [enum SubEmitterMode] enum.
</constant>
</constants>
</class>

305
scene/resources/particles_material.cpp
View file

@ -98,6 +98,17 @@ void ParticlesMaterial::init_shaders() {
shader_names->emission_ring_radius = "emission_ring_radius";
shader_names->emission_ring_inner_radius = "emission_ring_inner_radius";
shader_names->turbulence_active = "turbulence_active";
shader_names->turbulence_noise_strength = "turbulence_noise_strength";
shader_names->turbulence_noise_scale = "turbulence_noise_scale";
shader_names->turbulence_noise_speed = "turbulence_noise_speed";
shader_names->turbulence_noise_speed_random = "turbulence_noise_speed_random";
shader_names->turbulence_influence_over_life = "turbulence_influence_over_life";
shader_names->turbulence_influence_min = "turbulence_influence_min";
shader_names->turbulence_influence_max = "turbulence_influence_max";
shader_names->turbulence_initial_displacement_min = "turbulence_initial_displacement_min";
shader_names->turbulence_initial_displacement_max = "turbulence_initial_displacement_max";
shader_names->gravity = "gravity";
shader_names->lifetime_randomness = "lifetime_randomness";
@ -141,7 +152,6 @@ void ParticlesMaterial::_update_shader() {
shader_map[mk].users++;
return;
}
//must create a shader!
// Add a comment to describe the shader origin (useful when converting to ShaderMaterial).
@ -282,6 +292,77 @@ void ParticlesMaterial::_update_shader() {
code += "uniform float collision_bounce;\n";
}
if (turbulence_active) {
code += "uniform float turbulence_noise_strength;\n";
code += "uniform float turbulence_noise_scale;\n";
code += "uniform float turbulence_influence_min;\n";
code += "uniform float turbulence_influence_max;\n";
code += "uniform float turbulence_initial_displacement_min;\n";
code += "uniform float turbulence_initial_displacement_max;\n";
code += "uniform float turbulence_noise_speed_random;\n";
code += "uniform vec3 turbulence_noise_speed = vec3(1.0, 1.0, 1.0);\n";
if (tex_parameters[PARAM_TURB_INFLUENCE_OVER_LIFE].is_valid()) {
code += "uniform sampler2D turbulence_influence_over_life;\n";
}
if (turbulence_color_ramp.is_valid()) {
code += "uniform sampler2D turbulence_color_ramp;\n";
}
code += "\n";
//functions for 3D noise / turbulence
code += "\n\n";
code += "// 3D Noise with friendly permission by Inigo Quilez\n";
code += "vec3 hash_noise( vec3 p ) {\n";
code += " p *= mat3(vec3(127.1, 311.7, -53.7), vec3(269.5, 183.3, 77.1), vec3(-301.7, 27.3, 215.3));\n";
code += " return 2.0 * fract(fract(p)*4375.55) -1.;\n";
code += "}\n";
code += "\n";
code += "float noise( vec3 p) {\n";
code += " vec3 i = floor(p);;\n";
code += " vec3 f = fract(p);\n ";
code += " vec3 u = f * f * (3.0 - 2.0 * f);\n";
code += "\n";
code += " return 2.0*mix( mix( mix( dot( hash_noise( i + vec3(0.0,0.0,0.0) ), f - vec3(0.0,0.0,0.0) ), dot( hash_noise( i + vec3(1.0,0.0,0.0) ), f - vec3(1.0,0.0,0.0) ), u.x),\n";
code += " mix( dot( hash_noise( i + vec3(0.0,1.0,0.0) ), f - vec3(0.0,1.0,0.0) ), dot( hash_noise( i + vec3(1.0,1.0,0.0) ), f - vec3(1.0,1.0,0.0) ), u.x), u.y),\n";
code += " mix( mix( dot( hash_noise( i + vec3(0.0,0.0,1.0) ), f - vec3(0.0,0.0,1.0) ), dot( hash_noise( i + vec3(1.0,0.0,1.0) ), f - vec3(1.0,0.0,1.0) ), u.x),\n";
code += " mix( dot( hash_noise( i + vec3(0.0,1.0,1.0) ), f - vec3(0.0,1.0,1.0) ), dot( hash_noise( i + vec3(1.0,1.0,1.0) ), f - vec3(1.0,1.0,1.0) ), u.x), u.y), u.z);\n";
code += "}\n\n";
code += "// Curl 3D and noise_3d function with friendly permission by Isaac Cohen\n";
code += "vec3 noise_3d(vec3 p) {\n";
code += " float s = noise(p);\n";
code += " float s1 = noise(vec3(p.y - 19.1, p.z + 33.4, p.x + 47.2));\n";
code += " float s2 = noise(vec3(p.z + 74.2, p.x - 124.5, p.y + 99.4));\n";
code += " vec3 c = vec3(s, s1, s2);\n";
code += " return c;\n";
code += "}\n\n";
code += "vec3 curl_3d(vec3 p, float c) {\n";
code += " float epsilon = 0.001 + c;\n";
code += " vec3 dx = vec3(epsilon, 0.0, 0.0);\n";
code += " vec3 dy = vec3(0.0, epsilon, 0.0);\n";
code += " vec3 dz = vec3(0.0, 0.0, epsilon);\n";
code += " vec3 x0 = noise_3d(p - dx).xyz;\n";
code += " vec3 x1 = noise_3d(p + dx).xyz;\n";
code += " vec3 y0 = noise_3d(p - dy).xyz;\n";
code += " vec3 y1 = noise_3d(p + dy).xyz;\n";
code += " vec3 z0 = noise_3d(p - dz).xyz;\n";
code += " vec3 z1 = noise_3d(p + dz).xyz;\n";
code += " float x = y1.z - y0.z - z1.y + z0.y;\n";
code += " float y = z1.x - z0.x - x1.z + x0.z;\n";
code += " float z = x1.y - x0.y - y1.x + y0.x;\n";
code += " float divisor = 1.0 / (2.0 * epsilon);\n";
code += " return vec3(normalize(vec3(x, y, z) * divisor));\n";
code += "}\n";
code += "vec3 get_noise_direction(vec3 pos, vec3 emission_pos, vec3 time_noise) {\n";
code += " float adj_contrast = max((turbulence_noise_strength - 1.0), 0.0) * 70.0;\n";
code += " vec3 noise_time = (vec3(TIME) * turbulence_noise_speed) + time_noise;\n";
code += " vec3 noise_pos = (pos * turbulence_noise_scale) - emission_pos;\n";
code += " vec3 diff = pos - emission_pos;\n";
code += " vec3 noise_direction = curl_3d(noise_pos + noise_time - diff, adj_contrast);\n";
code += " noise_direction = mix(0.9 * noise_direction, noise_direction, turbulence_noise_strength - 9.0);\n";
code += " return noise_direction;\n";
code += "}\n";
}
//need a random function
code += "\n\n";
code += "float rand_from_seed(inout uint seed) {\n";
@ -463,8 +544,18 @@ void ParticlesMaterial::_update_shader() {
break;
}
}
code += " if (RESTART_VELOCITY) VELOCITY = (EMISSION_TRANSFORM * vec4(VELOCITY, 0.0)).xyz;\n";
// Apply noise/turbulence: initial displacement.
if (turbulence_active) {
if (get_turbulence_noise_speed_random() >= 0.0) {
code += " vec3 time_noise = noise_3d( vec3(TIME) * turbulence_noise_speed_random ) * -turbulence_noise_speed;\n";
} else {
code += " const vec3 time_noise = vec3(0.0);\n";
}
code += " vec3 noise_direction = get_noise_direction(TRANSFORM[3].xyz, EMISSION_TRANSFORM[3].xyz, time_noise);\n";
code += " float turb_init_displacement = mix(turbulence_initial_displacement_min, turbulence_initial_displacement_max, rand_from_seed(alt_seed));";
code += " TRANSFORM[3].xyz += noise_direction * turb_init_displacement;\n";
}
code += " TRANSFORM = EMISSION_TRANSFORM * TRANSFORM;\n";
if (particle_flags[PARTICLE_FLAG_DISABLE_Z]) {
code += " VELOCITY.z = 0.0;\n";
@ -483,7 +574,6 @@ void ParticlesMaterial::_update_shader() {
if (color_initial_ramp.is_valid()) {
code += " float color_initial_rand = rand_from_seed(alt_seed);\n";
}
code += " float pi = 3.14159;\n";
code += " float degree_to_rad = pi / 180.0;\n";
code += "\n";
@ -570,7 +660,7 @@ void ParticlesMaterial::_update_shader() {
code += " vec3 diff = pos - org;\n";
code += " force += length(diff) > 0.0 ? normalize(diff) * tex_radial_accel * mix(radial_accel_min, radial_accel_max, rand_from_seed(alt_seed)) : vec3(0.0);\n";
code += " // apply tangential acceleration;\n";
code += " float tangent_accel_val = tex_tangent_accel * mix(tangent_accel_min, tangent_accel_max, rand_from_seed(alt_seed))\n;";
code += " float tangent_accel_val = tex_tangent_accel * mix(tangent_accel_min, tangent_accel_max, rand_from_seed(alt_seed));\n";
if (particle_flags[PARTICLE_FLAG_DISABLE_Z]) {
code += " force += length(diff.yx) > 0.0 ? vec3(normalize(diff.yx * vec2(-1.0, 1.0)), 0.0) * tangent_accel_val : vec3(0.0);\n";
@ -584,6 +674,41 @@ void ParticlesMaterial::_update_shader() {
code += " // apply attractor forces\n";
code += " VELOCITY += force * DELTA;\n";
if (tex_parameters[PARAM_INITIAL_LINEAR_VELOCITY].is_valid()) {
code += " VELOCITY = normalize(VELOCITY) * tex_linear_velocity;\n";
}
// Apply noise/turbulence.
if (turbulence_active) {
code += " // apply turbulence\n";
if (tex_parameters[PARAM_TURB_INFLUENCE_OVER_LIFE].is_valid()) {
code += " float turbulence_influence = textureLod(turbulence_influence_over_life, vec2(tv, 0.0), 0.0).r;\n";
} else {
code += " const float turbulence_influence = 1.0;\n";
}
code += " \n";
if (get_turbulence_noise_speed_random() >= 0.0) {
code += " vec3 time_noise = noise_3d( vec3(TIME) * turbulence_noise_speed_random ) * -turbulence_noise_speed;\n";
} else {
code += " const vec3 time_noise = vec3(0.0);\n";
}
code += " vec3 noise_direction = get_noise_direction(TRANSFORM[3].xyz, EMISSION_TRANSFORM[3].xyz, time_noise);\n";
// If collision happened, turbulence is no longer applied.
String extra_tab = "";
if (collision_enabled) {
code += " if (!COLLIDED) {\n";
extra_tab = " ";
}
code += extra_tab + " \n";
code += extra_tab + " float vel_mag = length(VELOCITY);\n";
code += extra_tab + " float vel_infl = clamp(mix(turbulence_influence_min, turbulence_influence_max, rand_from_seed(alt_seed)) * turbulence_influence, 0.0, 1.0);\n";
code += extra_tab + " VELOCITY = mix(VELOCITY, normalize(noise_direction) * vel_mag * (1.0 + (1.0 - vel_infl) * 0.2), vel_infl);\n";
if (collision_enabled) {
code += " }";
}
}
code += " \n";
code += " // orbit velocity\n";
if (particle_flags[PARTICLE_FLAG_DISABLE_Z]) {
code += " float orbit_amount = tex_orbit_velocity * mix(orbit_velocity_min, orbit_velocity_max, rand_from_seed(alt_seed));\n";
@ -595,9 +720,6 @@ void ParticlesMaterial::_update_shader() {
code += " }\n";
}
if (tex_parameters[PARAM_INITIAL_LINEAR_VELOCITY].is_valid()) {
code += " VELOCITY = normalize(VELOCITY) * tex_linear_velocity;\n";
}
code += " float dmp = mix(damping_min, damping_max, rand_from_seed(alt_seed));\n";
code += " if (dmp * tex_damping > 0.0) {\n";
code += " float v = length(VELOCITY);\n";
@ -701,24 +823,34 @@ void ParticlesMaterial::_update_shader() {
code += " TRANSFORM[3] = origin;\n";
}
}
//scale by scale
if (particle_flags[PARTICLE_FLAG_DISABLE_Z]) {
code += " TRANSFORM[3].z = 0.0;\n";
}
if (collision_enabled) {
code += " if (COLLIDED) {\n";
code += " if (length(VELOCITY) > 3.0) {\n";
code += " TRANSFORM[3].xyz += COLLISION_NORMAL * COLLISION_DEPTH;\n";
code += " VELOCITY -= COLLISION_NORMAL * dot(COLLISION_NORMAL, VELOCITY) * (1.0 + collision_bounce);\n";
code += " VELOCITY = mix(VELOCITY,vec3(0.0),clamp(collision_friction, 0.0, 1.0));\n";
code += " } else {\n";
code += " VELOCITY = vec3(0.0);\n";
// If turbulence is enabled, set the noise direction to up so the turbulence color is "neutral"
if (turbulence_active) {
code += " noise_direction = vec3(1.0, 0.0, 0.0);\n";
}
code += " }\n";
code += " }\n";
}
// scale by scale
code += " float base_scale = mix(scale_min, scale_max, scale_rand);\n";
code += " base_scale = sign(base_scale) * max(abs(base_scale), 0.001);\n";
code += " TRANSFORM[0].xyz *= base_scale * sign(tex_scale.r) * max(abs(tex_scale.r), 0.001);\n";
code += " TRANSFORM[1].xyz *= base_scale * sign(tex_scale.g) * max(abs(tex_scale.g), 0.001);\n";
code += " TRANSFORM[2].xyz *= base_scale * sign(tex_scale.b) * max(abs(tex_scale.b), 0.001);\n";
if (particle_flags[PARTICLE_FLAG_DISABLE_Z]) {
code += " VELOCITY.z = 0.0;\n";
code += " TRANSFORM[3].z = 0.0;\n";
}
if (collision_enabled) {
code += " if (COLLIDED) {\n";
code += " TRANSFORM[3].xyz+=COLLISION_NORMAL * COLLISION_DEPTH;\n";
code += " VELOCITY -= COLLISION_NORMAL * dot(COLLISION_NORMAL, VELOCITY) * (1.0 + collision_bounce);\n";
code += " VELOCITY = mix(VELOCITY,vec3(0.0),collision_friction * DELTA * 100.0);\n";
code += " }\n";
}
if (sub_emitter_mode != SUB_EMITTER_DISABLED) {
code += " int emit_count = 0;\n";
switch (sub_emitter_mode) {
@ -856,6 +988,15 @@ void ParticlesMaterial::set_param_min(Parameter p_param, float p_value) {
case PARAM_ANIM_OFFSET: {
RenderingServer::get_singleton()->material_set_param(_get_material(), shader_names->anim_offset_min, p_value);
} break;
case PARAM_TURB_VEL_INFLUENCE: {
RenderingServer::get_singleton()->material_set_param(_get_material(), shader_names->turbulence_influence_min, p_value);
} break;
case PARAM_TURB_INIT_DISPLACEMENT: {
RenderingServer::get_singleton()->material_set_param(_get_material(), shader_names->turbulence_initial_displacement_min, p_value);
} break;
case PARAM_TURB_INFLUENCE_OVER_LIFE: {
// Can't happen, but silences warning
} break;
case PARAM_MAX:
break; // Can't happen, but silences warning
}
@ -912,6 +1053,15 @@ void ParticlesMaterial::set_param_max(Parameter p_param, float p_value) {
case PARAM_ANIM_OFFSET: {
RenderingServer::get_singleton()->material_set_param(_get_material(), shader_names->anim_offset_max, p_value);
} break;
case PARAM_TURB_VEL_INFLUENCE: {
RenderingServer::get_singleton()->material_set_param(_get_material(), shader_names->turbulence_influence_max, p_value);
} break;
case PARAM_TURB_INIT_DISPLACEMENT: {
RenderingServer::get_singleton()->material_set_param(_get_material(), shader_names->turbulence_initial_displacement_max, p_value);
} break;
case PARAM_TURB_INFLUENCE_OVER_LIFE: {
// Can't happen, but silences warning
} break;
case PARAM_MAX:
break; // Can't happen, but silences warning
}
@ -986,6 +1136,16 @@ void ParticlesMaterial::set_param_texture(Parameter p_param, const Ref<Texture2D
case PARAM_ANIM_OFFSET: {
RenderingServer::get_singleton()->material_set_param(_get_material(), shader_names->anim_offset_texture, tex_rid);
} break;
case PARAM_TURB_INFLUENCE_OVER_LIFE: {
RenderingServer::get_singleton()->material_set_param(_get_material(), shader_names->turbulence_influence_over_life, tex_rid);
_adjust_curve_range(p_texture, 0, 1);
} break;
case PARAM_TURB_VEL_INFLUENCE: {
// Can't happen, but silences warning
} break;
case PARAM_TURB_INIT_DISPLACEMENT: {
// Can't happen, but silences warning
} break;
case PARAM_MAX:
break; // Can't happen, but silences warning
}
@ -1151,6 +1311,54 @@ real_t ParticlesMaterial::get_emission_ring_inner_radius() const {
return emission_ring_inner_radius;
}
void ParticlesMaterial::set_turbulence_active(const bool p_turbulence_active) {
turbulence_active = p_turbulence_active;
RenderingServer::get_singleton()->material_set_param(_get_material(), shader_names->turbulence_active, turbulence_active);
_queue_shader_change();
notify_property_list_changed();
}
bool ParticlesMaterial::get_turbulence_active() const {
return turbulence_active;
}
void ParticlesMaterial::set_turbulence_noise_strength(float p_turbulence_noise_strength) {
turbulence_noise_strength = p_turbulence_noise_strength;
RenderingServer::get_singleton()->material_set_param(_get_material(), shader_names->turbulence_noise_strength, p_turbulence_noise_strength);
}
float ParticlesMaterial::get_turbulence_noise_strength() const {
return turbulence_noise_strength;
}
void ParticlesMaterial::set_turbulence_noise_scale(float p_turbulence_noise_scale) {
turbulence_noise_scale = p_turbulence_noise_scale;
float shader_turbulence_noise_scale = (pow(p_turbulence_noise_scale, 0.25) * 5.6234 / 10.0) * 4.0 - 3.0;
RenderingServer::get_singleton()->material_set_param(_get_material(), shader_names->turbulence_noise_scale, shader_turbulence_noise_scale);
}
float ParticlesMaterial::get_turbulence_noise_scale() const {
return turbulence_noise_scale;
}
void ParticlesMaterial::set_turbulence_noise_speed_random(float p_turbulence_noise_speed_random) {
turbulence_noise_speed_random = p_turbulence_noise_speed_random;
RenderingServer::get_singleton()->material_set_param(_get_material(), shader_names->turbulence_noise_speed_random, p_turbulence_noise_speed_random);
}
float ParticlesMaterial::get_turbulence_noise_speed_random() const {
return turbulence_noise_speed_random;
}
void ParticlesMaterial::set_turbulence_noise_speed(const Vector3 &p_turbulence_noise_speed) {
turbulence_noise_speed = p_turbulence_noise_speed;
RenderingServer::get_singleton()->material_set_param(_get_material(), shader_names->turbulence_noise_speed, turbulence_noise_speed);
}
Vector3 ParticlesMaterial::get_turbulence_noise_speed() const {
return turbulence_noise_speed;
}
void ParticlesMaterial::set_gravity(const Vector3 &p_gravity) {
gravity = p_gravity;
Vector3 gset = gravity;
@ -1214,6 +1422,20 @@ void ParticlesMaterial::_validate_property(PropertyInfo &property) const {
if (property.name.begins_with("orbit_") && !particle_flags[PARTICLE_FLAG_DISABLE_Z]) {
property.usage = PROPERTY_USAGE_NONE;
}
if (!turbulence_active) {
if (property.name == "turbulence_noise_strength" ||
property.name == "turbulence_noise_scale" ||
property.name == "turbulence_noise_speed" ||
property.name == "turbulence_noise_speed_random" ||
property.name == "turbulence_influence_over_life" ||
property.name == "turbulence_influence_min" ||
property.name == "turbulence_influence_max" ||
property.name == "turbulence_initial_displacement_min" ||
property.name == "turbulence_initial_displacement_max") {
property.usage = PROPERTY_USAGE_NONE;
}
}
}
void ParticlesMaterial::set_sub_emitter_mode(SubEmitterMode p_sub_emitter_mode) {
@ -1365,6 +1587,21 @@ void ParticlesMaterial::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_emission_ring_inner_radius", "inner_radius"), &ParticlesMaterial::set_emission_ring_inner_radius);
ClassDB::bind_method(D_METHOD("get_emission_ring_inner_radius"), &ParticlesMaterial::get_emission_ring_inner_radius);
ClassDB::bind_method(D_METHOD("get_turbulence_active"), &ParticlesMaterial::get_turbulence_active);
ClassDB::bind_method(D_METHOD("set_turbulence_active", "turbulence_active"), &ParticlesMaterial::set_turbulence_active);
ClassDB::bind_method(D_METHOD("get_turbulence_noise_strength"), &ParticlesMaterial::get_turbulence_noise_strength);
ClassDB::bind_method(D_METHOD("set_turbulence_noise_strength", "turbulence_noise_strength"), &ParticlesMaterial::set_turbulence_noise_strength);
ClassDB::bind_method(D_METHOD("get_turbulence_noise_scale"), &ParticlesMaterial::get_turbulence_noise_scale);
ClassDB::bind_method(D_METHOD("set_turbulence_noise_scale", "turbulence_noise_scale"), &ParticlesMaterial::set_turbulence_noise_scale);
ClassDB::bind_method(D_METHOD("get_turbulence_noise_speed_random"), &ParticlesMaterial::get_turbulence_noise_speed_random);
ClassDB::bind_method(D_METHOD("set_turbulence_noise_speed_random", "turbulence_noise_speed_random"), &ParticlesMaterial::set_turbulence_noise_speed_random);
ClassDB::bind_method(D_METHOD("get_turbulence_noise_speed"), &ParticlesMaterial::get_turbulence_noise_speed);
ClassDB::bind_method(D_METHOD("set_turbulence_noise_speed", "turbulence_noise_speed"), &ParticlesMaterial::set_turbulence_noise_speed);
ClassDB::bind_method(D_METHOD("get_gravity"), &ParticlesMaterial::get_gravity);
ClassDB::bind_method(D_METHOD("set_gravity", "accel_vec"), &ParticlesMaterial::set_gravity);
@ -1467,6 +1704,19 @@ void ParticlesMaterial::_bind_methods() {
ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "hue_variation_min", PROPERTY_HINT_RANGE, "-1,1,0.01"), "set_param_min", "get_param_min", PARAM_HUE_VARIATION);
ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "hue_variation_max", PROPERTY_HINT_RANGE, "-1,1,0.01"), "set_param_max", "get_param_max", PARAM_HUE_VARIATION);
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "hue_variation_curve", PROPERTY_HINT_RESOURCE_TYPE, "CurveTexture"), "set_param_texture", "get_param_texture", PARAM_HUE_VARIATION);
ADD_GROUP("Turbulence", "turbulence_");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "turbulence_active"), "set_turbulence_active", "get_turbulence_active");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "turbulence_noise_strength", PROPERTY_HINT_RANGE, "0,20,0.01"), "set_turbulence_noise_strength", "get_turbulence_noise_strength");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "turbulence_noise_scale", PROPERTY_HINT_RANGE, "0,10,0.01"), "set_turbulence_noise_scale", "get_turbulence_noise_scale");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR3, "turbulence_noise_speed"), "set_turbulence_noise_speed", "get_turbulence_noise_speed");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "turbulence_noise_speed_random", PROPERTY_HINT_RANGE, "0,10,0.01"), "set_turbulence_noise_speed_random", "get_turbulence_noise_speed_random");
ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "turbulence_influence_min", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_min", "get_param_min", PARAM_TURB_VEL_INFLUENCE);
ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "turbulence_influence_max", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_max", "get_param_max", PARAM_TURB_VEL_INFLUENCE);
ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "turbulence_initial_displacement_min", PROPERTY_HINT_RANGE, "-100,100,0.1"), "set_param_min", "get_param_min", PARAM_TURB_INIT_DISPLACEMENT);
ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "turbulence_initial_displacement_max", PROPERTY_HINT_RANGE, "-100,100,0.1"), "set_param_max", "get_param_max", PARAM_TURB_INIT_DISPLACEMENT);
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "turbulence_influence_over_life", PROPERTY_HINT_RESOURCE_TYPE, "CurveTexture"), "set_param_texture", "get_param_texture", PARAM_TURB_INFLUENCE_OVER_LIFE);
ADD_GROUP("Animation", "anim_");
ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "anim_speed_min", PROPERTY_HINT_RANGE, "0,16,0.01,or_lesser,or_greater"), "set_param_min", "get_param_min", PARAM_ANIM_SPEED);
ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "anim_speed_max", PROPERTY_HINT_RANGE, "0,16,0.01,or_lesser,or_greater"), "set_param_max", "get_param_max", PARAM_ANIM_SPEED);
@ -1517,6 +1767,10 @@ void ParticlesMaterial::_bind_methods() {
BIND_ENUM_CONSTANT(EMISSION_SHAPE_RING);
BIND_ENUM_CONSTANT(EMISSION_SHAPE_MAX);
BIND_ENUM_CONSTANT(PARAM_TURB_VEL_INFLUENCE);
BIND_ENUM_CONSTANT(PARAM_TURB_INIT_DISPLACEMENT);
BIND_ENUM_CONSTANT(PARAM_TURB_INFLUENCE_OVER_LIFE);
BIND_ENUM_CONSTANT(SUB_EMITTER_DISABLED);
BIND_ENUM_CONSTANT(SUB_EMITTER_CONSTANT);
BIND_ENUM_CONSTANT(SUB_EMITTER_AT_END);
@ -1560,6 +1814,17 @@ ParticlesMaterial::ParticlesMaterial() :
set_emission_ring_height(1);
set_emission_ring_radius(1);
set_emission_ring_inner_radius(0);
set_turbulence_active(false);
set_turbulence_noise_speed(Vector3(0.5, 0.5, 0.5));
set_turbulence_noise_strength(1);
set_turbulence_noise_scale(9);
set_turbulence_noise_speed_random(0);
set_param_min(PARAM_TURB_VEL_INFLUENCE, 0.1);
set_param_max(PARAM_TURB_VEL_INFLUENCE, 0.1);
set_param_min(PARAM_TURB_INIT_DISPLACEMENT, 0.0);
set_param_max(PARAM_TURB_INIT_DISPLACEMENT, 0.0);
set_gravity(Vector3(0, -9.8, 0));
set_lifetime_randomness(0);

38
scene/resources/particles_material.h
View file

@ -58,6 +58,9 @@ public:
PARAM_HUE_VARIATION,
PARAM_ANIM_SPEED,
PARAM_ANIM_OFFSET,
PARAM_TURB_INFLUENCE_OVER_LIFE,
PARAM_TURB_VEL_INFLUENCE,
PARAM_TURB_INIT_DISPLACEMENT,
PARAM_MAX
};
@ -105,9 +108,10 @@ private:
uint32_t attractor_enabled : 1;
uint32_t collision_enabled : 1;
uint32_t collision_scale : 1;
uint32_t turbulence_active : 1;
};
uint32_t key = 0;
uint64_t key = 0;
static uint32_t hash(const MaterialKey &p_key) {
return hash_murmur3_one_32(p_key.key);
@ -152,6 +156,7 @@ private:
mk.collision_enabled = collision_enabled;
mk.attractor_enabled = attractor_interaction_enabled;
mk.collision_scale = collision_scale;
mk.turbulence_active = turbulence_active;
return mk;
}
@ -216,6 +221,17 @@ private:
StringName emission_ring_radius;
StringName emission_ring_inner_radius;
StringName turbulence_active;
StringName turbulence_noise_strength;
StringName turbulence_noise_scale;
StringName turbulence_noise_speed;
StringName turbulence_noise_speed_random;
StringName turbulence_influence_over_life;
StringName turbulence_influence_min;
StringName turbulence_influence_max;
StringName turbulence_initial_displacement_min;
StringName turbulence_initial_displacement_max;
StringName gravity;
StringName lifetime_randomness;
@ -243,6 +259,7 @@ private:
float params_min[PARAM_MAX];
float params_max[PARAM_MAX];
float params[PARAM_MAX];
Ref<Texture2D> tex_parameters[PARAM_MAX];
Color color;
@ -265,6 +282,13 @@ private:
bool anim_loop = false;
bool turbulence_active;
Vector3 turbulence_noise_speed;
Ref<Texture2D> turbulence_color_ramp;
float turbulence_noise_strength = 0.0f;
float turbulence_noise_scale = 0.0f;
float turbulence_noise_speed_random = 0.0f;
Vector3 gravity;
double lifetime_randomness = 0.0;
@ -340,6 +364,18 @@ public:
real_t get_emission_ring_inner_radius() const;
int get_emission_point_count() const;
void set_turbulence_active(bool p_turbulence_active);
void set_turbulence_noise_strength(float p_turbulence_noise_strength);
void set_turbulence_noise_scale(float p_turbulence_noise_scale);
void set_turbulence_noise_speed_random(float p_turbulence_noise_speed_random);
void set_turbulence_noise_speed(const Vector3 &p_turbulence_noise_speed);
bool get_turbulence_active() const;
float get_turbulence_noise_strength() const;
float get_turbulence_noise_scale() const;
float get_turbulence_noise_speed_random() const;
Vector3 get_turbulence_noise_speed() const;
void set_gravity(const Vector3 &p_gravity);
Vector3 get_gravity() const;