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++ // Copyright (C) 2026 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ // Blend mode override in SubRenderPass with OriginalMaterial.
++ // A semi-transparent red sphere (opacity 0.5) is rendered on a blue background.
++ // Phase 1 (useStandardBlend=true): SrcAlpha/OneMinusSrcAlpha -> red+blue mix -> purplish center.
++ // Phase 2 (useStandardBlend=false): One/Zero override -> only red sphere, no background -> red center.
++
++ import QtQuick
++ import QtQuick3D
++ import QtQuick3D.Helpers
++
++ Item {
++ id: root
++ width: 400
++ height: 400
++
++ // Toggle from C++ test: true = SrcAlpha/OneMinusSrcAlpha, false = One/Zero
++ property bool useStandardBlend: true
++
++ View3D {
++ anchors.fill: parent
++ renderOverrides: View3D.DisableInternalPasses
++
++ environment: SceneEnvironment {
++ backgroundMode: SceneEnvironment.Color
++ clearColor: "black"
++ }
++
++ PerspectiveCamera {
++ z: 300
++ }
++
++ RenderPassTexture {
++ id: colorTex
++ format: RenderPassTexture.RGBA8
++ }
++
++ RenderPass {
++ id: mainPass
++ clearColor: "blue"
++ commands: [
++ ColorAttachment { target: colorTex },
++ DepthStencilAttachment {},
++ RenderablesFilter { renderableTypes: RenderablesFilter.None },
++ SubRenderPass {
++ renderPass: RenderPass {
++ materialMode: RenderPass.OriginalMaterial
++ commands: [
++ RenderablesFilter {
++ renderableTypes: RenderablesFilter.Transparent
++ },
++ PipelineStateOverride {
++ objectName: "pso"
++ blendEnabled: true
++ targetBlend0.enable: true
++ targetBlend0.srcColor: root.useStandardBlend
++ ? RenderTargetBlend.SrcAlpha : RenderTargetBlend.One
++ targetBlend0.dstColor: root.useStandardBlend
++ ? RenderTargetBlend.OneMinusSrcAlpha : RenderTargetBlend.Zero
++ targetBlend0.srcAlpha: RenderTargetBlend.One
++ targetBlend0.dstAlpha: root.useStandardBlend
++ ? RenderTargetBlend.OneMinusSrcAlpha : RenderTargetBlend.Zero
++ }
++ ]
++ }
++ }
++ ]
++ }
++
++ SimpleQuadRenderer {
++ texture: Texture {
++ textureProvider: RenderOutputProvider {
++ textureSource: RenderOutputProvider.UserPassTexture
++ renderPass: mainPass
++ attachmentSelector: RenderOutputProvider.Attachment0
++ }
++ }
++ }
++
++ Model {
++ source: "#Sphere"
++ materials: PrincipledMaterial {
++ baseColor: "red"
++ opacity: 0.5
++ lighting: PrincipledMaterial.NoLighting
++ alphaMode: PrincipledMaterial.Blend
++ }
++ }
++ }
++ }