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Fix VAE scale factor for Stable Diffusion XL #79

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Merged
merged 1 commit into from
Aug 8, 2023
+12 −1
Merged

Fix VAE scale factor for Stable Diffusion XL #79

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2 changes: 1 addition & 1 deletion Diffusion.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
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11 changes: 11 additions & 0 deletions Diffusion/Common/Pipeline/Pipeline.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,13 @@ class Pipeline {
let pipeline: StableDiffusionPipelineProtocol
let maxSeed: UInt32

var isXL: Bool {
if #available(macOS 14.0, iOS 17.0, *) {
return (pipeline as? StableDiffusionXLPipeline) != nil
}
return false
}

var progress: StableDiffusionProgress? = nil {
didSet {
progressPublisher.value = progress
Expand Down Expand Up @@ -81,6 +88,10 @@ class Pipeline {
config.disableSafety = disableSafety
config.schedulerType = scheduler.asStableDiffusionScheduler()
config.useDenoisedIntermediates = true
if isXL {
config.encoderScaleFactor = 0.13025
config.decoderScaleFactor = 0.13025
}

// Evenly distribute previews based on inference steps
let previewIndices = previewIndices(stepCount, previewCount)
Expand Down