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Improve particles

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This commit is contained in:
Timo Kösters 2021-01-08 23:09:47 +01:00 committed by jshipsey
parent 952a77f94d
commit a4513fe09d
4 changed files with 112 additions and 38 deletions
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4
assets/common/abilities/staff/flamethrower.ron
View File

@ -1,12 +1,12 @@
BasicBeam(
buildup_duration: 0.25,
recover_duration: 0.25,
beam_duration: 0.5,
beam_duration: 1.5,
base_hps: 0,
base_dps: 150,
tick_rate: 3.0,
range: 15.0,
max_angle: 22.5,
max_angle: 10.0,
lifesteal_eff: 0.0,
energy_regen: 0,
energy_cost: 1,

41
assets/voxygen/shaders/particle-vert.glsl
View File

@ -86,6 +86,18 @@ float linear_scale(float factor) {
return lifetime * factor;
}
float percent() {
return lifetime / inst_lifespan;
}
float slow_end(float factor) {
return (1 + factor) * percent() / (percent() + factor);
}
float slow_start(float factor) {
return 1-(1 + factor) * (1-percent()) / ((1-percent()) + factor);
}
float start_end(float from, float to) {
return mix(from, to, lifetime / inst_lifespan);
}
@ -124,10 +136,10 @@ vec3 spiral_motion(vec3 line, float radius, float time_function) {
vec3 axis2 = perp_axis1(line);
vec3 axis3 = perp_axis2(line, axis2);
return line * time_function + vec3(
radius * cos(10 * time_function - inst_time) * axis2.x + radius * sin(10 * time_function - inst_time) * axis3.x,
radius * cos(10 * time_function - inst_time) * axis2.y + radius * sin(10 * time_function - inst_time) * axis3.y,
radius * cos(10 * time_function - inst_time) * axis2.z + radius * sin(10 * time_function - inst_time) * axis3.z);
return vec3(
radius * cos(time_function) * axis2.x + radius * sin(time_function) * axis3.x,
radius * cos(time_function) * axis2.y + radius * sin(time_function) * axis3.y,
radius * cos(time_function) * axis2.z + radius * sin(time_function) * axis3.z);
}
void main() {
@ -161,7 +173,7 @@ void main() {
f_reflect = 0.0; // Fire doesn't reflect light, it emits it
attr = Attr(
linear_motion(
vec3(normalize(vec2(rand0, rand1)) * 0.25, 0.3),
vec3(0.0),
vec3(rand2 * 0.1, rand3 * 0.1, 2.0 + rand4 * 1.0)
),
vec3(1.0),
@ -317,26 +329,25 @@ void main() {
} else if (inst_mode == ENERGY_NATURE) {
f_reflect = 0.0;
attr = Attr(
linear_motion(
vec3(rand0 * 1, rand1 * 1, rand2 * 1),
vec3(rand3 * 2, rand4 * 2, rand5 * 2)
),
vec3(0.8),
inst_dir * slow_end(0.03) + spiral_motion(vec3(rand1, rand2, rand3),
0.2 * (rand4 + 1.3) * slow_end(0.02), percent() * 3 * (rand4 + 4.0) + rand0),
vec3(1.0),
vec4(vec3(0, 2.5, 1.5 + rand7 * 0.7), start_end(1.0, 0.0)),
spin_in_axis(vec3(rand6, rand7, rand8), rand9 * 3)
);
} else if (inst_mode == FLAMETHROWER) {
f_reflect = 0.0; // Fire doesn't reflect light, it emits it
attr = Attr(
(inst_dir * lifetime / inst_lifespan) + vec3(rand0, rand1, rand2) * (lifetime * 5 + 0.25),
vec3(0.6 + rand3 * 0.5 + lifetime / inst_lifespan * 5),
vec4(3, 1.6 + rand5 * 0.3 - 0.4 * lifetime / inst_lifespan, 0.2, start_end(1.0, 0.0) /*0.8 - 0.6 * lifetime / inst_lifespan*/),
spin_in_axis(vec3(rand6, rand7, rand8), lifetime / inst_lifespan * 10 + 3 * rand9)
inst_dir * ((rand0+1.0)/2 + 0.5) * slow_end(0.2) + /*0.4 * vec3(rand0,
rand1, rand2) * slow_end(0.1)*/ + 0.1 * grav_vel(earth_gravity),
vec3((3 * (1 - slow_start(0.1)))),
vec4(3, 1.6 + rand5 * 0.3 - 0.4 * percent(), 0.2, start_end(1.0, 0.0)),
spin_in_axis(vec3(rand6, rand7, rand8), percent() * 10 + 3 * rand9)
);
} else if (inst_mode == FIRE_SHOCKWAVE) {
f_reflect = 0.0; // Fire doesn't reflect light, it emits it
attr = Attr(
vec3(rand0, rand1, lifetime * 10 + rand2),
vec3(rand0, rand1, lifetime * 1 + rand2),
vec3(1.6 + rand3 * 1.5 + 10 * (lifetime + inst_lifespan)),
vec4(3, 1.6 + rand7 * 0.3 - 5 * inst_lifespan + 2 * lifetime, 0.2, start_end(1.0, 0.0) /*0.8 - 3.5 * inst_lifespan*/),
spin_in_axis(vec3(rand3, rand4, rand5), rand6)

2
voxygen/src/render/pipelines/particle.rs
View File

@ -139,7 +139,7 @@ impl Instance {
}
}
pub fn new_beam(
pub fn new_directed(
inst_time: f64,
lifespan: f32,
inst_mode: ParticleMode,

101
voxygen/src/scene/particle.rs
View File

@ -66,14 +66,15 @@ impl ParticleMgr {
self.particles.resize_with(
self.particles.len() + (200.0 * power.abs()) as usize,
|| {
Particle::new(
Duration::from_secs(1),
Particle::new_directed(
Duration::from_secs_f32(rng.gen_range(1.0, 8.0)),
time,
ParticleMode::EnergyNature,
*pos,
*pos + Vec3::<f32>::zero()
.map(|_| rng.gen_range(-1.0..1.0))
.normalized()
* *radius,
* rng.gen_range(1.0, radius)
)
},
);
@ -81,10 +82,11 @@ impl ParticleMgr {
self.particles.resize_with(
self.particles.len() + (200.0 * power.abs()) as usize,
|| {
Particle::new(
Duration::from_secs(1),
Particle::new_directed(
Duration::from_secs(2),
time,
ParticleMode::CampfireFire,
ParticleMode::FlameThrower,
*pos,
*pos + Vec3::<f32>::zero()
.map(|_| rng.gen_range(-1.0..1.0))
.normalized()
@ -295,7 +297,7 @@ impl ParticleMgr {
Particle::new(
Duration::from_millis(250),
time,
ParticleMode::EnergyNature,
ParticleMode::CampfireSmoke,
pos.0,
)
},
@ -376,6 +378,7 @@ impl ParticleMgr {
.join()
.filter(|(_, _, b)| b.creation.map_or(true, |c| (c + dt as f64) >= time))
{
//
let range = beam.properties.speed * beam.properties.duration.as_secs_f32();
if beam
.properties
@ -393,6 +396,58 @@ impl ParticleMgr {
pos.0,
pos.0 + *ori.look_dir() * range,
));
//
if let CharacterState::BasicBeam(b) = character_state {
let particle_ori = b.particle_ori.unwrap_or_else(|| ori.look_vec());
if b.stage_section == StageSection::Cast {
if b.static_data.base_hps > 0.0 {
// Emit a light when using healing
lights.push(Light::new(pos.0 + b.offset, Rgb::new(0.1, 1.0, 0.15), 1.0));
for i in 0..self.scheduler.heartbeats(Duration::from_millis(1)) {
self.particles.push(Particle::new_directed(
b.static_data.beam_duration,
time + i as f64 / 1000.0,
ParticleMode::HealingBeam,
pos.0 + particle_ori * 0.5 + b.offset,
pos.0 + particle_ori * b.static_data.range + b.offset,
));
}
} else {
let mut rng = thread_rng();
let (from, to) = (Vec3::<f32>::unit_z(), particle_ori);
let m = Mat3::<f32>::rotation_from_to_3d(from, to);
// Emit a light when using flames
lights.push(Light::new(
pos.0 + b.offset,
Rgb::new(1.0, 0.25, 0.05).map(|e| e * rng.gen_range(0.8..1.2)),
2.0,
));
self.particles.resize_with(
self.particles.len()
+ 2 * usize::from(
self.scheduler.heartbeats(Duration::from_millis(1)),
),
|| {
let phi: f32 =
rng.gen_range(0.0..b.static_data.max_angle.to_radians());
let theta: f32 = rng.gen_range(0.0..2.0 * PI);
let offset_z = Vec3::new(
phi.sin() * theta.cos(),
phi.sin() * theta.sin(),
phi.cos(),
);
let random_ori = offset_z * m * Vec3::new(-1.0, -1.0, 1.0);
Particle::new_directed(
b.static_data.beam_duration,
time,
ParticleMode::FlameThrower,
pos.0 + random_ori * 0.5 + b.offset,
pos.0 + random_ori * b.static_data.range + b.offset,
)
},
);
}
//
}
} else {
let mut rng = thread_rng();
@ -612,25 +667,27 @@ impl ParticleMgr {
let position_snapped = ((position / scale).floor() + 0.5) * scale;
self.particles.push(Particle::new(
Duration::from_millis(250),
self.particles.push(Particle::new_directed(
Duration::from_secs(2),
time,
ParticleMode::GroundShockwave,
ParticleMode::FlameThrower,
position_snapped,
Vec3::new(0.0, 0.0, 10.0) + position_snapped,
));
}
} else {
for d in 0..3 * distance as i32 {
for d in 0..8 * distance as i32 {
let arc_position = theta - radians / 2.0 + dtheta * d as f32 / 3.0;
let position = pos.0
+ distance * Vec3::new(arc_position.cos(), arc_position.sin(), 0.0);
let diff = distance * Vec3::new(arc_position.cos(), arc_position.sin(), 0.0);
let position = pos.0 + diff;
self.particles.push(Particle::new(
Duration::from_secs_f32(distance / 50.0),
self.particles.push(Particle::new_directed(
Duration::from_millis(500),
time,
ParticleMode::FireShockwave,
position,
ParticleMode::FlameThrower,
pos.0 + diff * 0.9,
Vec3::new(0.0, 0.0, 2.0) + position,
));
}
}
@ -805,7 +862,7 @@ impl Particle {
}
}
fn new_beam(
fn new_directed(
lifespan: Duration,
time: f64,
mode: ParticleMode,
@ -814,7 +871,13 @@ impl Particle {
) -> Self {
Particle {
alive_until: time + lifespan.as_secs_f64(),
instance: ParticleInstance::new_beam(time, lifespan.as_secs_f32(), mode, pos1, pos2),
instance: ParticleInstance::new_directed(
time,
lifespan.as_secs_f32(),
mode,
pos1,
pos2,
),
}
}
}