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This commit is contained in:
Isaac
2023-12-19 20:12:18 +04:00
parent 29728db54a
commit 64ca79a475
5 changed files with 62 additions and 90 deletions
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15
submodules/TelegramUI/Components/DustEffect/Sources/DustEffectLayer.swift
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@@ -162,7 +162,6 @@ public final class DustEffectLayer: MetalEngineSubjectLayer, MetalEngineSubject
}
self.lastTimeStep = deltaTimeValue
//print("updateItems: \(deltaTime), localDeltaTime: \(localDeltaTime)")
var didRemoveItems = false
for i in (0 ..< self.items.count).reversed() {
@@ -224,19 +223,6 @@ public final class DustEffectLayer: MetalEngineSubjectLayer, MetalEngineSubject
if item.particleBuffer == nil {
if let particleBuffer = MetalEngine.shared.sharedBuffer(spec: BufferSpec(length: particleCount * 4 * (4 + 1))) {
item.particleBuffer = particleBuffer
/*let particles = particleBuffer.buffer.contents().assumingMemoryBound(to: Float.self)
for i in 0 ..< particleCount {
particles[i * 5 + 0] = 0.0;
particles[i * 5 + 1] = 0.0;
let direction = Float.random(in: 0.0 ..< Float.pi * 2.0)
let velocity = Float.random(in: 0.1 ... 0.2) * 420.0
particles[i * 5 + 2] = cos(direction) * velocity
particles[i * 5 + 3] = sin(direction) * velocity
particles[i * 5 + 4] = Float.random(in: 0.7 ... 1.5)
}*/
}
}
}
@@ -279,6 +265,7 @@ public final class DustEffectLayer: MetalEngineSubjectLayer, MetalEngineSubject
var phase = item.phase
computeEncoder.setBytes(&phase, length: 4, index: 2)
var timeStep: Float = Float(lastTimeStep) / Float(UIView.animationDurationFactor())
timeStep *= 2.0
computeEncoder.setBytes(&timeStep, length: 4, index: 3)
computeEncoder.dispatchThreadgroups(threadgroupCount, threadsPerThreadgroup: threadgroupSize)
}