Add Image Iterate: nested multi-prompt still families.

Iterate runs a series of prompts as generate (no still), edit (still A), or compose (A+B), saves each output under one library collection like video extensions, and defaults to iterating from the original still.

pages/index.vue

@@ -24,6 +24,12 @@
           <p class="text-sm text-zinc-400">{{ studioMode === 'editv2'
             ? (v2Mode === 'generate'
               ? 'Generate: no reference image. Prompt only.'
+              : v2Mode === 'iterate'
+              ? (file
+                ? (editRefFile
+                  ? 'Iterate: each prompt runs as Compose from stills A and B (or chain from the last output). All results nest in one library collection.'
+                  : 'Iterate: each prompt runs from still A (batch) or from the last output (chain). All results nest in one library collection.')
+                : 'Iterate: each prompt is a separate generate. All results nest in one library collection like video extensions.')
               : v2Mode === 'refine'
               ? 'Refine: paint a mask on Still A. Prompt only what should change in the painted area. Strength is denoise in that region.'
               : v2Mode === 'compose'
@@ -35,7 +41,7 @@
         </div>
 
         <div
-          v-if="!(studioMode === 'editv2' && v2Mode === 'generate')"
+          v-if="!(studioMode === 'editv2' && (v2Mode === 'generate' || (v2Mode === 'iterate' && !file && !inputStillId)))"
           class="relative cursor-pointer rounded-2xl border border-dashed border-white/15 bg-zinc-950/50 p-4 transition hover:border-amber-300/50"
           :class="{ 'border-amber-300/70 bg-amber-400/5': dragging }"
           @dragover.prevent="dragging = true"
@@ -71,7 +77,14 @@
           v-else-if="studioMode === 'editv2' && v2Mode === 'generate' && (file || inputStillId)"
           class="rounded-2xl border border-white/10 bg-zinc-950/40 px-4 py-3 text-sm text-zinc-400"
         >
-          Still A is loaded for Edit / Compose / Refine. Generate ignores it and uses the prompt only.
+          Still A is loaded for Edit / Compose / Refine / Iterate. Generate ignores it and uses the prompt only.
+        </div>
+        <div
+          v-else-if="studioMode === 'editv2' && v2Mode === 'iterate'"
+          class="rounded-2xl border border-dashed border-white/15 bg-zinc-950/40 px-4 py-3 text-sm text-zinc-400"
+        >
+          <button type="button" class="font-medium text-amber-100 hover:underline" @click="openPicker('main')">Optional · add still A</button>
+          <span class="mt-1 block text-zinc-500">No still = text generate iterations. With a still = edit (or compose if you add still B).</span>
         </div>
 
         <div v-if="file || inputStillId" class="mt-2 flex min-w-0 items-center gap-2">
@@ -144,7 +157,17 @@
           >
             Generate
           </button>
-          <label v-if="v2Mode === 'compose'" class="ml-auto text-xs">
+          <button
+            type="button"
+            class="rounded-full border px-3 py-1 text-xs font-medium disabled:cursor-not-allowed disabled:opacity-40"
+            :class="v2Mode === 'iterate' ? 'border-amber-300/70 bg-amber-400/10 text-amber-100' : 'border-white/10 text-zinc-400 hover:text-white'"
+            :disabled="v2ModeLocked && v2Mode !== 'iterate'"
+            :title="v2ModeLocked && v2Mode !== 'iterate' ? 'Remove extra passes to change graphs' : ''"
+            @click="setV2Mode('iterate')"
+          >
+            Iterate
+          </button>
+          <label v-if="v2Mode === 'compose' || (v2Mode === 'iterate' && editRefFile)" class="ml-auto text-xs">
             <span class="mr-2 text-zinc-500">Task</span>
             <select
               v-model="v2Task"
@@ -158,9 +181,9 @@
           </label>
         </div>
 
-        <div v-if="studioMode === 'edit' || (studioMode === 'editv2' && v2Mode === 'compose')" class="rounded-2xl border border-dashed border-white/15 bg-zinc-950/50 p-4">
+        <div v-if="studioMode === 'edit' || (studioMode === 'editv2' && (v2Mode === 'compose' || (v2Mode === 'iterate' && file)))" class="rounded-2xl border border-dashed border-white/15 bg-zinc-950/50 p-4">
           <div class="mb-2 flex items-center justify-between gap-2">
-            <p class="text-sm font-medium text-zinc-300">{{ studioMode === 'editv2' ? 'Still B · required' : 'Image 2 · optional' }}</p>
+            <p class="text-sm font-medium text-zinc-300">{{ studioMode === 'editv2' && v2Mode === 'compose' ? 'Still B · required' : studioMode === 'editv2' ? 'Still B · optional' : 'Image 2 · optional' }}</p>
             <button
               v-if="editRefFile"
               type="button"
@@ -203,7 +226,7 @@
 
         <div>
           <div class="mb-2 flex flex-wrap items-center justify-between gap-2">
-            <label class="text-sm font-medium text-zinc-300">{{ studioMode === 'editv2' && v2Mode === 'generate' ? 'Generate prompt' : studioMode === 'editv2' && v2Mode === 'refine' ? 'Refine prompt' : studioMode === 'edit' || studioMode === 'editv2' ? 'Edit prompt' : 'Motion & scene prompt' }}</label>
+            <label class="text-sm font-medium text-zinc-300">{{ studioMode === 'editv2' && v2Mode === 'generate' ? 'Generate prompt' : studioMode === 'editv2' && v2Mode === 'iterate' ? 'Iteration 1' : studioMode === 'editv2' && v2Mode === 'refine' ? 'Refine prompt' : studioMode === 'edit' || studioMode === 'editv2' ? 'Edit prompt' : 'Motion & scene prompt' }}</label>
             <div class="flex flex-wrap items-center gap-3">
               <button
                 v-if="identityPrompting"
@@ -292,6 +315,7 @@
             </label>
           </div>
           <p v-if="studioMode === 'editv2' && v2Mode === 'generate'" class="mt-3 text-xs text-zinc-500">No reference image. Prompt only.</p>
+          <p v-else-if="studioMode === 'editv2' && v2Mode === 'iterate'" class="mt-3 text-xs text-zinc-500">Add more iterations below. Everything saves as one nested library collection.</p>
           <div v-if="studioMode === 'editv2' && v2Mode === 'refine'" class="mt-3 space-y-2">
             <p class="text-xs text-zinc-500">Prompt only what should change in the painted area.</p>
             <div class="flex flex-wrap gap-2">
@@ -345,14 +369,14 @@
             </div>
           </div>
           <div v-if="studioMode === 'edit' || v2PassChaining" class="mt-3 space-y-3">
-            <div class="grid grid-cols-2 gap-2">
+            <div v-if="!(v2Mode === 'iterate' && !file)" class="grid grid-cols-2 gap-2">
               <button
                 type="button"
                 class="rounded-xl border px-3 py-2 text-left text-sm transition"
                 :class="imagePassMode === 'batch' ? 'border-amber-300 bg-amber-400/10 text-amber-100' : 'border-white/10 hover:border-white/20'"
                 @click="imagePassMode = 'batch'"
               >
-                <span class="block font-semibold">Batch</span>
+                <span class="block font-semibold">{{ v2Mode === 'iterate' ? 'From original' : 'Batch' }}</span>
                 <span class="text-[11px] leading-snug text-zinc-400">Each prompt from the start still</span>
               </button>
               <button
@@ -361,7 +385,7 @@
                 :class="imagePassMode === 'chain' ? 'border-amber-300 bg-amber-400/10 text-amber-100' : 'border-white/10 hover:border-white/20'"
                 @click="imagePassMode = 'chain'"
               >
-                <span class="block font-semibold">Chain</span>
+                <span class="block font-semibold">{{ v2Mode === 'iterate' ? 'From last' : 'Chain' }}</span>
                 <span class="text-[11px] leading-snug text-zinc-400">Each pass from the last output</span>
               </button>
             </div>
@@ -383,7 +407,7 @@
               class="rounded-2xl border border-white/10 bg-zinc-950/50 p-4"
             >
               <div class="mb-3 flex items-center justify-between gap-2">
-                <p class="text-sm font-medium text-zinc-200">{{ imagePassMode === 'batch' ? 'Prompt' : 'Pass' }} {{ index + 2 }}</p>
+                <p class="text-sm font-medium text-zinc-200">{{ v2Mode === 'iterate' ? 'Iteration' : imagePassMode === 'batch' ? 'Prompt' : 'Pass' }} {{ index + 2 }}</p>
                 <button
                   type="button"
                   class="text-xs text-red-300 hover:text-red-200"
@@ -844,7 +868,7 @@
               compact
               :disabled="v2Turbo"
             />
-            <template v-if="v2Mode !== 'generate'">
+            <template v-if="v2Mode !== 'generate' && !(v2Mode === 'iterate' && !file)">
               <LampToggle :model-value="v2ScaleOn" label="Scale to MP" @update:model-value="setV2ScaleOn" />
               <Thumbwheel
                 v-model="v2Megapixels"
@@ -1982,7 +2006,7 @@
                     <p class="truncate text-xs text-zinc-500">{{ stillMetaLine(entry.stillGroup.head) }}</p>
                     <div class="mt-2 flex flex-wrap items-center gap-3">
                       <button v-if="entry.stillGroup.parts.length > 1" type="button" class="text-xs text-amber-200" @click="toggleFamily(entry.stillGroup.key)">
-                        {{ expandedFamilies[entry.stillGroup.key] ? 'Collapse' : `Expand ${entry.stillGroup.parts.length} passes` }}
+                        {{ expandedFamilies[entry.stillGroup.key] ? 'Collapse' : `Expand ${entry.stillGroup.parts.length} ${entry.stillGroup.head.settings?.mode === 'iterate' ? 'iterations' : 'passes'}` }}
                       </button>
                       <button type="button" class="text-xs text-amber-300" @click="openStill(entry.stillGroup.head)">Open</button>
                       <button type="button" class="text-xs text-amber-300" @click="useStillAsInput(entry.stillGroup.head)">Use as input</button>
@@ -3198,38 +3222,52 @@ const stillBHint = computed(() => {
 const editV2Blocked = computed(() => {
   if (!folderId.value) return true
   if (!prompt.value.trim() && !imageFillWithoutPrompt.value) return true
-  if (v2Mode.value !== 'generate' && !file.value) return true
+  if (v2Mode.value !== 'generate' && v2Mode.value !== 'iterate' && !file.value) return true
   if (v2Mode.value === 'compose' && !editRefFile.value) return true
   if (v2Mode.value === 'refine' && !refineMaskDirty.value) return true
   if (v2PassChaining.value && editPassQueue.value.some(item => !item.prompt.trim())) return true
+  if (v2Mode.value === 'iterate' && !editPassQueue.value.length) return true
   return false
 })
 const editV2BlockReason = computed(() => {
-  if (v2Mode.value !== 'generate' && !file.value) return 'Load still A first.'
+  if (v2Mode.value !== 'generate' && v2Mode.value !== 'iterate' && !file.value) return 'Load still A first.'
   if (v2Mode.value === 'compose' && !editRefFile.value) return 'Compose requires still B. This will not fall back to one-image generation.'
   if (v2Mode.value === 'refine' && !refineMaskDirty.value) return 'Paint a mask on Still A first. Refine will not fall back to Edit.'
   if (!prompt.value.trim() && !imageFillWithoutPrompt.value) {
-    return v2Mode.value === 'generate'
+    return v2Mode.value === 'generate' || (v2Mode.value === 'iterate' && !file.value)
       ? 'Write a prompt first.'
       : 'Write a prompt, or pick Landscape / Portrait / Square to fill the frame.'
   }
+  if (v2Mode.value === 'iterate' && !editPassQueue.value.length) return 'Add at least one more iteration prompt.'
   if (v2PassChaining.value && editPassQueue.value.some(item => !item.prompt.trim())) return 'Each extra pass needs a prompt.'
   if (!folderId.value) return 'Choose a library folder before generating.'
   if (!imageComfyConfigured.value && !comfyOk.value) return 'Image v2 is not configured. Set COMFY_HOST.'
   return ''
 })
-const v2PassChaining = computed(() => studioMode.value === 'editv2' && (v2Mode.value === 'edit' || v2Mode.value === 'compose'))
+const v2PassChaining = computed(() => studioMode.value === 'editv2' && (v2Mode.value === 'edit' || v2Mode.value === 'compose' || v2Mode.value === 'iterate'))
 const v2ModeLocked = computed(() => v2PassChaining.value && editPassQueue.value.length > 0)
 const extraPassButtonLabel = computed(() => {
+  if (v2Mode.value === 'iterate') return '+ Iteration'
   if (imagePassMode.value === 'batch') return '+ Prompt'
   return studioMode.value === 'editv2' && v2Mode.value === 'compose' ? '+ Compose pass' : '+ Edit pass'
 })
 const imageBatchButtonHint = computed(() => {
   const n = 1 + editPassQueue.value.length
-  if (imageBatchScript.value.trim() && n > 1) return `${n} prompts on the start still. Same format as a video shot list.`
-  return 'Paste shot 1, shot 2, shot 3. Each image is a new prompt on the original still.'
+  if (imageBatchScript.value.trim() && n > 1) {
+    return v2Mode.value === 'iterate'
+      ? `${n} iterations. Same format as a video shot list.`
+      : `${n} prompts on the start still. Same format as a video shot list.`
+  }
+  return v2Mode.value === 'iterate'
+    ? 'Paste shot 1, shot 2, shot 3. Each line becomes one nested still.'
+    : 'Paste shot 1, shot 2, shot 3. Each image is a new prompt on the original still.'
 })
 const extraPassHint = computed(() => {
+  if (v2Mode.value === 'iterate') {
+    if (!file.value) return 'Each prompt is a separate generate. Outputs nest under one library collection.'
+    if (imagePassMode.value === 'batch') return 'Every prompt runs from the start still. Outputs nest under one library collection.'
+    return 'Each prompt runs from the last output. Outputs nest under one library collection.'
+  }
   if (imagePassMode.value === 'batch') {
     return 'Every prompt runs from the start still. Paste a shot list, or add prompts one at a time. Outputs do not feed the next prompt.'
   }
@@ -3239,6 +3277,7 @@ const extraPassHint = computed(() => {
   return 'Each extra pass is another Edit on the last output. You cannot switch graphs between passes.'
 })
 const extraPassPlaceholder = computed(() => {
+  if (v2Mode.value === 'iterate') return 'Next iteration prompt…'
   if (imagePassMode.value === 'batch') return 'Another prompt for the same start still…'
   return studioMode.value === 'editv2' && v2Mode.value === 'compose'
     ? 'Next compose prompt, applied to the previous pass output…'
@@ -3247,14 +3286,25 @@ const extraPassPlaceholder = computed(() => {
 const editV2SubmitLabel = computed(() => {
   const occupied = videoBusy.value || editBusy.value || studioJobs.value.some(job => job.status === 'running')
   const n = v2PassChaining.value ? editPassQueue.value.length : 0
-  const label = v2Mode.value === 'generate' ? 'Generate image' : v2Mode.value === 'refine' ? 'Refine image' : v2Mode.value === 'compose' ? 'Compose image' : 'Edit image'
+  const label = v2Mode.value === 'generate'
+    ? 'Generate image'
+    : v2Mode.value === 'iterate'
+      ? 'Iterate'
+      : v2Mode.value === 'refine'
+        ? 'Refine image'
+        : v2Mode.value === 'compose'
+          ? 'Compose image'
+          : 'Edit image'
   if (!occupied) {
+    if (v2Mode.value === 'iterate') return n ? `Iterate × ${n + 1}` : 'Iterate'
     if (!n) return label
     if (imagePassMode.value === 'batch') return n === 1 ? `${label} × 2` : `${label} × ${n + 1}`
     return n === 1 ? `${label} + 1 pass` : `${label} + ${n} passes`
   }
   if (n) {
-    return imagePassMode.value === 'batch' ? `Queue ${n + 1} from start still` : `Queue ${n + 1} passes`
+    return v2Mode.value === 'iterate'
+      ? `Queue ${n + 1} iterations`
+      : imagePassMode.value === 'batch' ? `Queue ${n + 1} from start still` : `Queue ${n + 1} passes`
   }
   return `Queue ${label.toLowerCase()}`
 })
@@ -3646,7 +3696,8 @@ function stillFamilyScript(parts: LibraryStill[]) {
 function stillMetaLine(still: LibraryStill) {
   const res = still.width && still.height ? `${still.width}×${still.height}` : 'image'
   const mode = stillModeLabel(still)
-  const pass = typeof still.chainIndex === 'number' ? `pass ${still.chainIndex + 1}` : ''
+  const unit = still.settings?.mode === 'iterate' ? 'iteration' : 'pass'
+  const pass = typeof still.chainIndex === 'number' ? `${unit} ${still.chainIndex + 1}` : ''
   return [res, mode, pass].filter(Boolean).join(' · ')
 }
 
@@ -4618,7 +4669,15 @@ function applyGenerationPreset(preset: GenerationPreset) {
   if (preset.kind === 'imagev2') {
     const settings = preset.settings as ImageV2PresetSettings
     persistImageV2LoraStack(imageV2LoraStack.value, v2Engine.value)
-    v2Mode.value = settings.mode === 'compose' ? 'compose' : settings.mode === 'refine' ? 'refine' : settings.mode === 'generate' ? 'generate' : 'edit'
+    v2Mode.value = settings.mode === 'compose'
+      ? 'compose'
+      : settings.mode === 'refine'
+        ? 'refine'
+        : settings.mode === 'generate'
+          ? 'generate'
+          : settings.mode === 'iterate'
+            ? 'iterate'
+            : 'edit'
     if (v2Mode.value !== 'edit' && v2Mode.value !== 'compose') clearEditPasses()
     v2Engine.value = parseImageV2Engine(settings.engine, 'flux')
     v2Task.value = v2Mode.value === 'compose' ? (settings.task || 'scene') : v2Mode.value === 'refine' ? 'refine' : v2Mode.value === 'generate' ? 't2i' : 'scene'
@@ -5419,7 +5478,7 @@ async function restoreStudioEditJob(payload: {
   loraStack?: LoraStackItem[]
   negative?: string
   imagePipeline?: 'v1' | 'v2'
-  v2Mode?: 'edit' | 'compose' | 'refine' | 'generate'
+  v2Mode?: 'edit' | 'compose' | 'refine' | 'generate' | 'iterate'
   v2Task?: 'scene' | 'identity' | 'outfit' | 'face_lock' | 'refine' | 't2i'
   engine?: 'flux' | 'krea'
   snofsModel?: number
@@ -5445,7 +5504,7 @@ async function restoreStudioEditJob(payload: {
   if (v2) {
     studioMode.value = 'editv2'
     outputFocus.value = 'edit'
-    const mode = payload.v2Mode === 'compose' || payload.v2Mode === 'refine' || payload.v2Mode === 'generate'
+    const mode = payload.v2Mode === 'compose' || payload.v2Mode === 'refine' || payload.v2Mode === 'generate' || payload.v2Mode === 'iterate'
       ? payload.v2Mode
       : 'edit'
     setV2Mode(mode)
@@ -5552,7 +5611,7 @@ async function restoreStudioPayload(kind: string, payload: {
       shotLoraStacks?: LoraStackItem[][]
       negative?: string
       imagePipeline?: 'v1' | 'v2'
-      v2Mode?: 'edit' | 'compose' | 'refine' | 'generate'
+      v2Mode?: 'edit' | 'compose' | 'refine' | 'generate' | 'iterate'
       v2Task?: 'scene' | 'identity' | 'outfit' | 'face_lock' | 'refine' | 't2i'
       engine?: 'flux' | 'krea'
       snofsModel?: number
@@ -6332,7 +6391,7 @@ function applyStillSettings(still: LibraryStill) {
   if (dest === 'imagev2') {
     studioMode.value = 'editv2'
     outputFocus.value = 'edit'
-    const mode = settings?.mode === 'compose' || settings?.mode === 'refine' || settings?.mode === 'generate'
+    const mode = settings?.mode === 'compose' || settings?.mode === 'refine' || settings?.mode === 'generate' || settings?.mode === 'iterate'
       ? settings.mode
       : 'edit'
     setV2Mode(mode)
@@ -6392,6 +6451,7 @@ function stillUseAsInputMessage(still: LibraryStill) {
   const dest = inferStillPipeline(still)
   const mode = still.settings?.mode
   if (dest === 'imagev2' && mode === 'generate') return 'Generate settings and still loaded. Switch to Edit anytime — the image is already in Still A.'
+  if (dest === 'imagev2' && mode === 'iterate') return 'Iterate settings and still loaded.'
   if (dest === 'imagev2' && mode === 'compose') {
     return still.settings?.referenceStillId
       ? 'Compose settings loaded with stills A and B.'
@@ -6976,6 +7036,7 @@ function absorbPastedImageBatch() {
 }
 
 function imagePassUnit() {
+  if (v2Mode.value === 'iterate') return 'Iteration'
   return imagePassMode.value === 'batch' ? 'Batch' : 'Pass'
 }
 
@@ -7102,8 +7163,12 @@ function setV2Mode(mode: ImageV2Mode) {
   if (mode === 'generate') {
     v2Task.value = 't2i'
   }
+  if (mode === 'iterate') {
+    v2Task.value = 'scene'
+    imagePassMode.value = 'batch'
+  }
   if (v2Engine.value === 'krea' && mode === 'edit') v2Denoise.value = IMAGE_V2_KREA_EDIT_DENOISE
-  if (v2Engine.value === 'krea' && mode === 'compose') v2Denoise.value = IMAGE_V2_KREA_COMPOSE_DENOISE
+  if (v2Engine.value === 'krea' && (mode === 'compose' || mode === 'iterate')) v2Denoise.value = IMAGE_V2_KREA_COMPOSE_DENOISE
 }
 
 function setV2Engine(engine: ImageV2Engine) {
@@ -7228,10 +7293,17 @@ async function editImageV2() {
     await ensureGenerationNotifyPermission()
     const body = new FormData()
     body.append('mode', v2Mode.value)
-    body.append('task', v2Mode.value === 'generate' ? 't2i' : v2Mode.value === 'refine' ? 'refine' : v2Mode.value === 'compose' ? v2Task.value : 'scene')
+    const iterateGenerate = v2Mode.value === 'iterate' && !file.value
+    body.append('task', v2Mode.value === 'generate' || iterateGenerate
+      ? 't2i'
+      : v2Mode.value === 'refine'
+        ? 'refine'
+        : (v2Mode.value === 'compose' || (v2Mode.value === 'iterate' && editRefFile.value))
+          ? v2Task.value
+          : 'scene')
     if (v2Mode.value !== 'generate' && file.value) body.append('image_a', file.value)
-    if (v2Mode.value === 'compose' && editRefFile.value) body.append('image_b', editRefFile.value)
-    if (v2Mode.value === 'refine' || (v2Engine.value === 'krea' && v2Mode.value !== 'generate')) {
+    if ((v2Mode.value === 'compose' || v2Mode.value === 'iterate') && editRefFile.value) body.append('image_b', editRefFile.value)
+    if (v2Mode.value === 'refine' || (v2Engine.value === 'krea' && v2Mode.value !== 'generate' && !iterateGenerate)) {
       if (v2Mode.value === 'refine') {
         const maskBlob = await refinePainter.value?.exportPng()
         if (!maskBlob) {
@@ -7242,7 +7314,7 @@ async function editImageV2() {
       }
       body.append('strength', String(clampImageV2Denoise(v2Denoise.value)))
     }
-    if (v2Mode.value === 'generate') {
+    if (v2Mode.value === 'generate' || iterateGenerate) {
       const size = generateSizeForAspect(aspect.value)
       body.append('width', String(size.width))
       body.append('height', String(size.height))
@@ -7260,7 +7332,7 @@ async function editImageV2() {
     body.append('consistency_clip', String(imageV2EngineLoras().find(item => isImageV2ConsistencyLora(item.name))?.strengthClip ?? 0))
     body.append('steps', String(clampImageSteps(v2Steps.value, v2Engine.value === 'krea' ? IMAGE_V2_KREA_STEPS : IMAGE_V2_STEPS_DEFAULT)))
     body.append('cfg', String(clampImageCfg(v2Cfg.value, v2Engine.value === 'krea' ? IMAGE_V2_KREA_CFG : IMAGE_V2_CFG_DEFAULT)))
-    if (v2Mode.value !== 'generate') {
+    if (v2Mode.value !== 'generate' && !iterateGenerate) {
       body.append('scaleToTotalPixels', String(v2ScaleOn.value))
       if (v2ScaleOn.value) body.append('megapixels', String(clampImageScaleMegapixels(v2Megapixels.value, 1)))
     }
@@ -7270,9 +7342,9 @@ async function editImageV2() {
     body.append('hideInput', String(showPrivacyToggles.value && hideInputPreview.value))
     body.append('hideThumbnail', String(showPrivacyToggles.value && hideThumbnail.value))
     body.append('name', clipName.value.trim())
-    if (inputStillId.value) body.append('stillId', inputStillId.value)
+    if (inputStillId.value && file.value) body.append('stillId', inputStillId.value)
     if (extraPasses.length) body.append('passes', JSON.stringify(extraPasses))
-    body.append('passMode', imagePassMode.value)
+    body.append('passMode', iterateGenerate ? 'batch' : imagePassMode.value)
     const v2Stack = filterLoraStackForImageEngine(
       filterLoraStackForStudio(imageV2LoraStack.value, ltxEnabled.value),
       v2Engine.value
@@ -7301,7 +7373,9 @@ async function editImageV2() {
     if (started.queued) {
       const n = 1 + extraPasses.length
       toast(n > 1
-        ? (imagePassMode.value === 'batch'
+        ? (v2Mode.value === 'iterate'
+          ? `Queued ${n} iterations behind the current job.`
+          : imagePassMode.value === 'batch'
             ? `Queued ${n} Image v2 stills from the start image behind the current job.`
             : `Queued ${n} Image v2 passes behind the current job.`)
         : (v2Engine.value === 'krea' ? 'Queued Krea generate behind the current job.' : 'Queued Image v2 behind the current job.'))
@@ -7324,7 +7398,15 @@ async function editImageV2() {
     editChainLabel.value = extraPasses.length ? `${imagePassUnit()} 1` : ''
     editOverallProgress.value = 0
     editCompletedChainStep.value = 0
-    const passNoun = v2Mode.value === 'compose' ? 'Compose' : v2Mode.value === 'refine' ? 'Refine' : v2Mode.value === 'generate' ? 'Generate' : 'Edit'
+    const passNoun = v2Mode.value === 'iterate'
+      ? 'Iteration'
+      : v2Mode.value === 'compose'
+        ? 'Compose'
+        : v2Mode.value === 'refine'
+          ? 'Refine'
+          : v2Mode.value === 'generate'
+            ? 'Generate'
+            : 'Edit'
     editActiveChainPlan.value = imagePassPlan(prompt.value.trim(), extraPasses, passNoun)
     startTimer('edit')
     editDownloadName.value = downloadName

server/api/v2/generate.post.ts

@@ -131,7 +131,7 @@ export default defineEventHandler(async (event) => {
 
   const mode = parseImageV2Mode(fields.mode)
   if (!mode) {
-    throw createError({ statusCode: 400, statusMessage: 'mode must be edit, compose, refine, or generate' })
+    throw createError({ statusCode: 400, statusMessage: 'mode must be edit, compose, refine, generate, or iterate' })
   }
   const task = parseImageV2Task(
     fields.task,
@@ -145,13 +145,19 @@ export default defineEventHandler(async (event) => {
   const extraPasses = parsePasses(fields.passes)
   const passMode = parseImagePassMode(fields.passMode)
   const aspect = parseImageAspect(fields.aspect)
-  if (!promptMid && (mode === 'generate' || aspect === 'auto')) {
+  if (!promptMid && (mode === 'generate' || mode === 'iterate' || aspect === 'auto')) {
     throw createError({ statusCode: 400, statusMessage: 'A prompt is required' })
   }
   if (extraPasses.length && (mode === 'refine' || mode === 'generate')) {
     throw createError({
       statusCode: 400,
-      statusMessage: 'Extra passes are only for Edit and Compose. Refine and Generate stay a single run.'
+      statusMessage: 'Extra passes are only for Edit, Compose, and Iterate. Refine and Generate stay a single run.'
+    })
+  }
+  if (mode === 'iterate' && !extraPasses.length) {
+    throw createError({
+      statusCode: 400,
+      statusMessage: 'Iterate needs at least two prompts. Add more iterations, or use Generate / Edit for a single run.'
     })
   }
   if (extraPasses.some(item => !item.prompt)) {
@@ -172,13 +178,24 @@ export default defineEventHandler(async (event) => {
   }
 
   const ownerKey = libraryOwnerKey(event)
-  const imageA = mode === 'generate' ? null : await resolveImageRef(ownerKey, fields.image_a, uploadedA)
-  const imageB = mode === 'refine' || mode === 'generate' ? null : await resolveImageRef(ownerKey, fields.image_b, uploadedB)
-  const mask = mode === 'refine' ? await resolveImageRef(ownerKey, fields.mask, uploadedMask) : null
-
-  if (mode !== 'generate' && !imageA) {
+  const imageA = mode === 'generate'
+    ? null
+    : await resolveImageRef(ownerKey, fields.image_a || fields.stillId, uploadedA).catch(() => null)
+  // Iterate with no still A is text-only generate iterations.
+  if (mode !== 'generate' && mode !== 'iterate' && !imageA) {
     throw createError({ statusCode: 400, statusMessage: 'image_a is required' })
   }
+  if (mode === 'iterate' && !imageA && (uploadedA || String(fields.image_a || fields.stillId || '').trim())) {
+    throw createError({ statusCode: 400, statusMessage: 'Could not load still A for iterate' })
+  }
+  const imageB = mode === 'refine' || mode === 'generate' || (mode === 'iterate' && !imageA)
+    ? null
+    : await resolveImageRef(ownerKey, fields.image_b, uploadedB).catch(() => null)
+  const mask = mode === 'refine' ? await resolveImageRef(ownerKey, fields.mask, uploadedMask) : null
+  const graphMode = mode === 'iterate'
+    ? (imageA ? (imageB ? 'compose' as const : 'edit' as const) : 'generate' as const)
+    : mode
+
   if (mode === 'refine' && !mask) {
     throw createError({
       statusCode: 400,
@@ -220,7 +237,7 @@ export default defineEventHandler(async (event) => {
   const cfg = engine === 'krea'
     ? clampImageCfg(fields.cfg, IMAGE_V2_KREA_CFG)
     : turbo ? IMAGE_V2_TURBO_CFG : clampImageCfg(fields.cfg, IMAGE_V2_CFG_DEFAULT)
-  const megapixels = mode === 'generate'
+  const megapixels = graphMode === 'generate'
     ? 0
     : fields.scaleToTotalPixels == null
       ? clampImageScaleMegapixels(fields.megapixels ?? fields.scaleMegapixels, 1)
@@ -230,31 +247,31 @@ export default defineEventHandler(async (event) => {
   const seed = fields.seed && String(fields.seed) !== 'random'
     ? Number(fields.seed)
     : Math.floor(Math.random() * 2_147_483_647)
-  const generateSize = mode === 'generate'
+  const generateSize = graphMode === 'generate'
     ? generateSizeForAspect(aspect)
     : clampImageV2Size(fields.width, fields.height, fields.aspect)
-  const size = mode === 'generate'
+  const size = graphMode === 'generate'
     ? { width: generateSize.width, height: generateSize.height }
     : imageDimensions(imageA!.data)
   const v2Mode = mode as ImageV2Mode
   const v2Task = (
-    mode === 'generate' ? 't2i' : mode === 'refine' ? 'refine' : mode === 'edit' ? 'scene' : task
+    graphMode === 'generate' ? 't2i' : graphMode === 'refine' ? 'refine' : graphMode === 'edit' ? 'scene' : task
   ) as ImageV2Task
-  const refineStrength = mode === 'generate'
+  const refineStrength = graphMode === 'generate'
     ? undefined
-    : engine === 'krea' || mode === 'refine'
+    : engine === 'krea' || graphMode === 'refine'
       ? clampImageV2Denoise(
         fields.strength,
-        mode === 'compose' ? IMAGE_V2_KREA_COMPOSE_DENOISE : mode === 'edit' ? IMAGE_V2_KREA_EDIT_DENOISE : IMAGE_V2_DENOISE_DEFAULT
+        graphMode === 'compose' ? IMAGE_V2_KREA_COMPOSE_DENOISE : graphMode === 'edit' ? IMAGE_V2_KREA_EDIT_DENOISE : IMAGE_V2_DENOISE_DEFAULT
       )
       : undefined
   const generateConsistencyModel = clampImageV2Strength(
     fields.consistency_model,
-    mode === 'generate' || engine === 'krea' ? 0 : IMAGE_V2_CONSISTENCY_MODEL
+    graphMode === 'generate' || engine === 'krea' ? 0 : IMAGE_V2_CONSISTENCY_MODEL
   )
   const generateConsistencyClip = clampImageV2Strength(
     fields.consistency_clip,
-    mode === 'generate' || engine === 'krea' ? 0 : IMAGE_V2_CONSISTENCY_CLIP
+    graphMode === 'generate' || engine === 'krea' ? 0 : IMAGE_V2_CONSISTENCY_CLIP
   )
   const conceptAllowed = isXaigenStudio()
   const generateSnofsFallback = 0
@@ -325,7 +342,7 @@ export default defineEventHandler(async (event) => {
       promptPost: promptPost || undefined,
       name: clipName,
       folderId,
-      aspect: mode === 'generate' ? generateSize.aspect : aspect,
+      aspect: graphMode === 'generate' ? generateSize.aspect : aspect,
       width: size?.width || 0,
       height: size?.height || 0,
       steps,
@@ -349,10 +366,10 @@ export default defineEventHandler(async (event) => {
       queueAutoRun: false,
       negative: String(fields.negative || '').trim(),
       passes: extraPasses,
-      passMode,
+      passMode: mode === 'iterate' && graphMode === 'generate' ? 'batch' : passMode,
       referenceStillId: savedRef?.id,
       referenceStillFilename: savedRef?.filename,
-      scaleToTotalPixels: mode !== 'generate' && megapixels > 0,
+      scaleToTotalPixels: graphMode !== 'generate' && megapixels > 0,
       scaleMegapixels: megapixels,
       imagePipeline: 'v2',
       v2Mode,
@@ -386,7 +403,7 @@ export default defineEventHandler(async (event) => {
     mode: v2Mode,
     task: v2Task,
     engine,
-    workflow: imageV2WorkflowFile(v2Mode, engine),
+    workflow: imageV2WorkflowFile(v2Mode, engine, { hasImage: Boolean(imageA), hasReference: Boolean(imageB) }),
     width: size?.width || 0,
     height: size?.height || 0,
     strength: refineStrength,

server/utils/imageChainV2.ts

@@ -11,6 +11,7 @@ import { comfyJobPrefix } from '~/utils/outputNames'
 import { restorePromptParts, wrappedPromptForComfy } from '~/utils/promptParts'
 import { isXaigenStudio } from '~/utils/videoModels'
 import {
+  imageV2GraphMode,
   imageV2StackSpecials,
   mergeLegacyImageV2Loras,
   parseImageV2Engine,
@@ -52,20 +53,24 @@ export type EditV2RunParams = {
 export async function runEditV2(job: Job, params: EditV2RunParams) {
   const library = job.library
   if (!library) throw new Error('Edit job is missing library metadata')
-  if (params.mode === 'refine' && !params.mask) {
+  const graphMode = imageV2GraphMode(params.mode, {
+    hasImage: Boolean(params.image),
+    hasReference: Boolean(params.reference)
+  })
+  if (graphMode === 'refine' && !params.mask) {
     throw new Error('Refine requires a mask. Refusing to fall back to Edit.')
   }
-  if (params.mode === 'compose' && !params.reference) {
+  if (graphMode === 'compose' && !params.reference) {
     throw new Error('Compose requires image B. Refusing to fall back to one-image generation.')
   }
-  if (params.mode === 'edit' && params.reference) {
+  if (graphMode === 'edit' && params.reference && params.mode !== 'iterate') {
     throw new Error('Edit mode takes one image. Use Compose for two stills.')
   }
-  if (params.mode !== 'generate' && !params.image) {
+  if (graphMode !== 'generate' && !params.image) {
     throw new Error('This v2 mode requires still A.')
   }
 
-  const canChain = params.mode === 'edit' || params.mode === 'compose'
+  const canChain = params.mode === 'iterate' || params.mode === 'edit' || params.mode === 'compose'
   const extraPasses = canChain
     ? (params.passes || []).map(item => ({ prompt: String(item.prompt || '').trim() })).filter(item => item.prompt)
     : []
@@ -78,8 +83,9 @@ export async function runEditV2(job: Job, params: EditV2RunParams) {
     ...extraPasses.map(item => item.prompt)
   ]
   const chainTotal = prompts.length
-  const batch = params.passMode !== 'chain'
-  const unit = batch ? 'Batch' : 'Pass'
+  // Text-only iterate is always independent generations. With a still, honor batch vs chain.
+  const batch = graphMode === 'generate' || params.passMode !== 'chain'
+  const unit = params.mode === 'iterate' ? 'Iteration' : (batch ? 'Batch' : 'Pass')
   library.chainTotal = chainTotal
   library.familyId = chainTotal > 1 ? (library.familyId || crypto.randomUUID()) : library.familyId
 
@@ -96,7 +102,7 @@ export async function runEditV2(job: Job, params: EditV2RunParams) {
     job.imageComfyHost = getComfyHost()
 
     await withImageComfyHost(job.imageComfyHost, async () => {
-      const generate = params.mode === 'generate'
+      const generate = graphMode === 'generate'
       const engine = parseImageV2Engine(params.engine, 'flux')
       const engineLabel = engine === 'krea' ? 'Krea' : 'Flux'
       const { applyImageFill } = await import('~/server/utils/imagePad')
@@ -113,7 +119,7 @@ export async function runEditV2(job: Job, params: EditV2RunParams) {
       const krea = engine === 'krea' ? await resolveKreaGenerateAssets() : null
       const appliedStack = mergeLegacyImageV2Loras(params.loraStack?.length ? params.loraStack : library.loraStack, {
         engine,
-        mode: params.mode,
+        mode: graphMode,
         xaigen: isXaigenStudio(),
         snofsModel: params.snofsModel,
         snofsClip: params.snofsClip,
@@ -127,7 +133,7 @@ export async function runEditV2(job: Job, params: EditV2RunParams) {
       const consistencyModel = appliedSpecials.consistency?.strengthModel ?? params.consistencyModel
       const consistencyClip = appliedSpecials.consistency?.strengthClip ?? params.consistencyClip
 
-      if (!generate && params.mode === 'compose' && params.reference) {
+      if (!generate && graphMode === 'compose' && params.reference) {
         uploadedRef = await uploadImage({
           ...params.reference,
           filename: `ref_${params.reference.filename || 'image_b.png'}`
@@ -163,17 +169,17 @@ export async function runEditV2(job: Job, params: EditV2RunParams) {
         emitChainJob(job, {
           type: 'status',
           message: generate
-            ? `Queueing ${engineLabel} generate on Beast...`
-            : params.mode === 'refine'
+            ? `Queueing ${engineLabel} iterate generate on Beast...`
+            : graphMode === 'refine'
               ? 'Uploading canvas and mask to Beast...'
-              : params.mode === 'compose' ? 'Uploading stills A and B to Beast...' : 'Uploading still A to Beast...',
+              : graphMode === 'compose' ? 'Uploading stills A and B to Beast...' : 'Uploading still A to Beast...',
           progress: generate ? 12 : 8
         })
 
         if (index === 0 && !generate && image) {
           const filled = await applyImageFill({
             image,
-            mask: params.mode === 'refine' ? mask : null,
+            mask: graphMode === 'refine' ? mask : null,
             aspect: params.aspect || 'auto'
           })
           image = filled.image
@@ -199,7 +205,7 @@ export async function runEditV2(job: Job, params: EditV2RunParams) {
           prompt = composeFillPrompt(prompt, true)
         }
 
-        if (index === 0 && params.mode === 'refine' && mask && !uploadedMask) {
+        if (index === 0 && graphMode === 'refine' && mask && !uploadedMask) {
           uploadedMask = await uploadImage({
             ...mask,
             filename: `mask_${mask.filename || 'refine-mask.png'}`
@@ -212,9 +218,11 @@ export async function runEditV2(job: Job, params: EditV2RunParams) {
         if (!generate) {
           emitChainJob(job, {
             type: 'status',
-            message: params.mode === 'refine'
+            message: params.mode === 'iterate'
+              ? `Queueing ${engineLabel} iterate (${graphMode}) on Beast...`
+              : graphMode === 'refine'
                 ? `Queueing ${engineLabel} v2 refine on Beast...`
-              : params.mode === 'compose'
+                : graphMode === 'compose'
                   ? `Queueing ${engineLabel} v2 compose (${params.task}) on Beast...`
                   : `Queueing ${engineLabel} v2 edit on Beast...`,
             progress: 12
@@ -222,9 +230,9 @@ export async function runEditV2(job: Job, params: EditV2RunParams) {
         }
 
         const built = buildImageV2Workflow({
-          mode: params.mode,
+          mode: graphMode,
           engine,
-          task: params.task,
+          task: generate ? 't2i' : params.task,
           prompt: wrappedPromptForComfy(library, prompt, index === 0 ? params.prompt : prompt),
           negative: params.negative,
           imageAName: uploaded?.name,
@@ -305,7 +313,7 @@ export async function runEditV2(job: Job, params: EditV2RunParams) {
             kind: 'imagev2',
             mode: params.mode,
             engine,
-            task: params.task,
+            task: generate ? 't2i' : params.task,
             negative: params.negative,
             snofsModel,
             snofsClip,
@@ -313,12 +321,12 @@ export async function runEditV2(job: Job, params: EditV2RunParams) {
             consistencyClip,
             steps: params.steps,
             cfg: params.cfg,
-            megapixels: params.mode === 'generate' || !(params.megapixels > 0) ? undefined : params.megapixels,
-            scaleToTotalPixels: params.mode === 'generate' ? undefined : params.megapixels > 0,
+            megapixels: generate || !(params.megapixels > 0) ? undefined : params.megapixels,
+            scaleToTotalPixels: generate ? undefined : params.megapixels > 0,
             turbo: params.turbo === true,
-            strength: params.mode === 'generate' ? undefined : params.strength,
-            width: params.mode === 'generate' ? params.width : undefined,
-            height: params.mode === 'generate' ? params.height : undefined,
+            strength: generate ? undefined : params.strength,
+            width: generate ? params.width : undefined,
+            height: generate ? params.height : undefined,
             aspect: params.aspect || 'auto',
             seed,
             sourceStillId: params.sourceStillId || library.stillId,
@@ -362,7 +370,7 @@ export async function runEditV2(job: Job, params: EditV2RunParams) {
         emitChainJob(job, {
           type: 'complete',
           message: chainTotal > 1
-            ? `${engineLabel} v2 ${batch ? 'batch' : 'chain'} finished on Beast`
+            ? `${engineLabel} ${params.mode === 'iterate' ? 'iterate' : `v2 ${batch ? 'batch' : 'chain'}`} finished on Beast`
             : `${engineLabel} v2 finished on Beast`,
           progress: 100,
           stillId: still?.id,

server/utils/studioQueue.ts

@@ -58,7 +58,7 @@ export interface StudioJobPayload {
   scaleToTotalPixels?: boolean
   scaleMegapixels?: number
   imagePipeline?: 'v1' | 'v2'
-  v2Mode?: 'edit' | 'compose' | 'refine' | 'generate'
+  v2Mode?: 'edit' | 'compose' | 'refine' | 'generate' | 'iterate'
   v2Task?: 'scene' | 'identity' | 'outfit' | 'face_lock' | 'refine' | 't2i'
   engine?: 'flux' | 'krea'
   snofsModel?: number
@@ -1017,7 +1017,8 @@ async function startStudioEditJob(item: StudioJob) {
     const { runEditV2 } = await import('~/server/utils/imageChainV2')
 
     const payload = item.payload
-    const generate = payload.imagePipeline === 'v2' && payload.v2Mode === 'generate'
+    const iterate = payload.imagePipeline === 'v2' && payload.v2Mode === 'iterate'
+    const generate = payload.imagePipeline === 'v2' && (payload.v2Mode === 'generate' || (iterate && !payload.stillId))
     if (!generate && (!payload.stillId || !existsSync(stillPath(item.ownerKey, payload.stillId)))) {
       throw new Error('The input still is missing from the library')
     }
@@ -1038,30 +1039,36 @@ async function startStudioEditJob(item: StudioJob) {
       : null
 
     if (payload.imagePipeline === 'v2') {
-      const mode = payload.v2Mode === 'compose'
+      const mode = payload.v2Mode === 'iterate'
+        ? 'iterate'
+        : payload.v2Mode === 'compose'
           ? 'compose'
           : payload.v2Mode === 'refine'
             ? 'refine'
             : payload.v2Mode === 'generate'
               ? 'generate'
               : 'edit'
+      const graphMode = mode === 'iterate'
+        ? (image ? (reference ? 'compose' : 'edit') : 'generate')
+        : mode
       const maskId = payload.maskStillId
-      const mask = mode === 'refine' && maskId && existsSync(stillPath(item.ownerKey, maskId))
+      const mask = graphMode === 'refine' && maskId && existsSync(stillPath(item.ownerKey, maskId))
         ? {
           filename: payload.maskStillFilename || 'refine-mask.png',
           data: readFileSync(stillPath(item.ownerKey, maskId)),
           type: 'image/png'
         }
         : null
-      if (mode === 'refine' && !mask) {
+      if (graphMode === 'refine' && !mask) {
         throw new Error('Refine requires a mask. Refusing to fall back to Edit.')
       }
-      if (mode === 'compose' && !reference) {
+      if (graphMode === 'compose' && !reference) {
         throw new Error('Compose requires image B. Refusing to fall back to one-image generation.')
       }
       if (mode === 'edit' && reference) {
         throw new Error('Edit mode takes one image. Use Compose for two stills.')
       }
+      const passCount = (mode === 'edit' || mode === 'compose' || mode === 'iterate') ? (payload.passes?.length || 0) : 0
       live = createEditLiveJob({
         steps: payload.steps,
         hideThumbnail: payload.hideThumbnail,
@@ -1088,9 +1095,9 @@ async function startStudioEditJob(item: StudioJob) {
           familyId: item.familyId,
           chainIndex: 0,
           chainStep: 1,
-          chainTotal: 1 + ((mode === 'edit' || mode === 'compose') ? (payload.passes?.length || 0) : 0),
-          chainLabel: (mode === 'edit' || mode === 'compose') && payload.passes?.length
-            ? (payload.passMode === 'chain' ? 'Pass 1' : 'Batch 1')
+          chainTotal: 1 + passCount,
+          chainLabel: passCount
+            ? (mode === 'iterate' ? 'Iteration 1' : (payload.passMode === 'chain' ? 'Pass 1' : 'Batch 1'))
             : undefined,
           passes: payload.passes,
           ...persistLoraFields(payload.loraStack || payload.loraName)
@@ -1102,30 +1109,30 @@ async function startStudioEditJob(item: StudioJob) {
       void runEditV2(live, {
         mode,
         engine: v2Engine,
-        task: payload.v2Task || 'scene',
-        image: mode === 'generate' ? null : image,
-        reference: mode === 'refine' || mode === 'generate' ? null : reference,
+        task: payload.v2Task || (graphMode === 'generate' ? 't2i' : 'scene'),
+        image: graphMode === 'generate' ? null : image,
+        reference: graphMode === 'compose' ? reference : null,
         mask,
         prompt: payload.prompt,
-        passes: payload.passes || [],
-        passMode: payload.passMode === 'chain' ? 'chain' : 'batch',
         negative: payload.negative || '',
         steps: payload.steps,
-        seed: live.library?.seed || payload.seed,
+        seed: payload.seed || Math.floor(Math.random() * 2_147_483_647),
         cfg: payload.cfg,
         snofsModel: v2Specials.snofs?.strengthModel ?? payload.snofsModel ?? 0,
         snofsClip: v2Specials.snofs?.strengthClip ?? payload.snofsClip ?? 0,
-        consistencyModel: v2Specials.consistency?.strengthModel ?? payload.consistencyModel ?? (mode === 'generate' || payload.engine === 'krea' ? 0 : 0.7),
-        consistencyClip: v2Specials.consistency?.strengthClip ?? payload.consistencyClip ?? (mode === 'generate' || payload.engine === 'krea' ? 0 : 0.7),
-        megapixels: payload.scaleToTotalPixels === false ? 0 : (payload.scaleMegapixels ?? 1),
+        consistencyModel: v2Specials.consistency?.strengthModel ?? payload.consistencyModel ?? 0,
+        consistencyClip: v2Specials.consistency?.strengthClip ?? payload.consistencyClip ?? 0,
+        megapixels: payload.scaleMegapixels || 0,
         strength: payload.refineStrength,
-        aspect: payload.aspect || 'auto',
         width: payload.width,
         height: payload.height,
         turbo: payload.turbo === true,
+        aspect: payload.aspect,
         sourceStillId: payload.stillId,
         referenceStillId: payload.referenceStillId,
-        loraStack: payload.loraStack
+        loraStack: payload.loraStack,
+        passes: payload.passes,
+        passMode: payload.passMode === 'chain' ? 'chain' : 'batch',
       }).catch((error) => {
         const message = error instanceof Error ? error.message : String(error)
         if (live && live.status !== 'error' && live.status !== 'cancelled' && live.status !== 'deferred') {

utils/imageV2.ts

@@ -6,13 +6,26 @@ import {
   type LoraStackItem
 } from '~/utils/loras'
 
-export const IMAGE_V2_MODES = ['edit', 'compose', 'refine', 'generate'] as const
+export const IMAGE_V2_MODES = ['edit', 'compose', 'refine', 'generate', 'iterate'] as const
 export const IMAGE_V2_TASKS = ['scene', 'identity', 'outfit', 'face_lock', 'refine', 't2i'] as const
 export const IMAGE_V2_ENGINES = ['flux', 'krea'] as const
 
 export type ImageV2Mode = (typeof IMAGE_V2_MODES)[number]
 export type ImageV2Task = (typeof IMAGE_V2_TASKS)[number]
 export type ImageV2Engine = (typeof IMAGE_V2_ENGINES)[number]
+export type ImageV2GraphMode = Exclude<ImageV2Mode, 'iterate'>
+
+/** Iterate picks a real graph from the attached stills: none → generate, A → edit, A+B → compose. */
+export function iterateGraphMode(opts: { hasImage?: boolean; hasReference?: boolean }): Exclude<ImageV2GraphMode, 'refine'> {
+  if (!opts.hasImage) return 'generate'
+  if (opts.hasReference) return 'compose'
+  return 'edit'
+}
+
+export function imageV2GraphMode(mode: ImageV2Mode, opts: { hasImage?: boolean; hasReference?: boolean } = {}): ImageV2GraphMode {
+  if (mode === 'iterate') return iterateGraphMode(opts)
+  return mode
+}
 
 export const IMAGE_V2_STEPS_DEFAULT = 24
 export const IMAGE_V2_CFG_DEFAULT = 4
@@ -97,16 +110,17 @@ export function parseImageV2Engine(raw: unknown, fallback: ImageV2Engine = 'flux
   return IMAGE_V2_ENGINES.includes(value as ImageV2Engine) ? value as ImageV2Engine : fallback
 }
 
-export function imageV2WorkflowFile(mode: ImageV2Mode, engine: ImageV2Engine = 'flux') {
+export function imageV2WorkflowFile(mode: ImageV2Mode, engine: ImageV2Engine = 'flux', opts: { hasImage?: boolean; hasReference?: boolean } = {}) {
+  const graph = imageV2GraphMode(mode, opts)
   if (engine === 'krea') {
-    if (mode === 'generate') return 'krea_v2_generate.json'
-    if (mode === 'refine') return 'krea_v2_refine.json'
-    if (mode === 'compose') return 'krea_v2_compose.json'
+    if (graph === 'generate') return 'krea_v2_generate.json'
+    if (graph === 'refine') return 'krea_v2_refine.json'
+    if (graph === 'compose') return 'krea_v2_compose.json'
     return 'krea_v2_edit.json'
   }
-  if (mode === 'generate') return 'klein_v2_generate.json'
-  if (mode === 'refine') return 'klein_v2_refine.json'
-  if (mode === 'compose') return 'klein_v2_compose.json'
+  if (graph === 'generate') return 'klein_v2_generate.json'
+  if (graph === 'refine') return 'klein_v2_refine.json'
+  if (graph === 'compose') return 'klein_v2_compose.json'
   return 'klein_v2_edit.json'
 }
 
@@ -150,9 +164,10 @@ export function clampImageV2Size(width: unknown, height: unknown, aspect?: unkno
   }
 }
 
-export function composeImageV2Prompt(mode: ImageV2Mode, task: ImageV2Task, prompt: string) {
+export function composeImageV2Prompt(mode: ImageV2Mode, task: ImageV2Task, prompt: string, opts: { hasImage?: boolean; hasReference?: boolean } = {}) {
   const body = String(prompt || '').trim()
-  if (mode === 'generate' || mode === 'refine' || mode !== 'compose' || task === 'scene' || task === 't2i') return body
+  const graph = imageV2GraphMode(mode, opts)
+  if (graph === 'generate' || graph === 'refine' || graph !== 'compose' || task === 'scene' || task === 't2i') return body
   const header = IMAGE_V2_ROLE_HEADERS[task as Exclude<ImageV2Task, 'scene' | 'refine' | 't2i'>]
   return header ? `${header}\n\n${body}` : body
 }

utils/libraryGeneration.ts

@@ -92,7 +92,7 @@ function stillDisplayLoraStack(settings: StillGenerationSettings) {
 export function normalizeStillSettings(raw: unknown): StillGenerationSettings | undefined {
   if (!raw || typeof raw !== 'object') return undefined
   const value = raw as Record<string, unknown>
-  const mode = value.mode === 'compose' || value.mode === 'refine' || value.mode === 'generate' || value.mode === 'edit'
+  const mode = value.mode === 'compose' || value.mode === 'refine' || value.mode === 'generate' || value.mode === 'edit' || value.mode === 'iterate'
     ? value.mode
     : undefined
   const engine = value.engine === 'krea' || value.engine === 'flux' ? value.engine : undefined
@@ -155,6 +155,8 @@ export function stillModeLabel(still: { filename?: string; settings?: StillGener
   if (settings?.kind === 'imagev2' || settings?.mode) {
     const mode = settings.mode === 'generate'
       ? 'Generate'
+      : settings.mode === 'iterate'
+        ? 'Iterate'
         : settings.mode === 'compose'
           ? 'Compose'
           : settings.mode === 'refine'