增加摄像机

client/core/eval/ProjectEvaluator.cpp

@@ -45,6 +45,28 @@ QPointF sampledOriginForTool(const core::Project::Tool& t,
     return core::sampleLocation(t.locationKeys, localFrame, t.originWorld, core::KeyInterpolation::Linear);
 }
 
+QPointF sampledCenterForCamera(const core::Project::Camera& c,
+                               const core::Project::AnimationClip* clipOrNull,
+                               int localFrame) {
+    if (clipOrNull && clipOrNull->cameraLocationKeys.contains(c.id)) {
+        const auto& keys = clipOrNull->cameraLocationKeys.value(c.id);
+        return core::sampleLocation(keys, localFrame, c.centerWorld, core::KeyInterpolation::Linear);
+    }
+    return core::sampleLocation(c.locationKeys, localFrame, c.centerWorld, core::KeyInterpolation::Linear);
+}
+
+double sampledViewScaleForCamera(const core::Project::Camera& c,
+                                 const core::Project::AnimationClip* clipOrNull,
+                                 int localFrame) {
+    if (clipOrNull && clipOrNull->cameraScaleKeys.contains(c.id)) {
+        const auto& keys = clipOrNull->cameraScaleKeys.value(c.id);
+        if (!keys.isEmpty()) {
+            return core::sampleUserScale(keys, localFrame, c.viewScale, core::KeyInterpolation::Linear);
+        }
+    }
+    return core::sampleUserScale(c.scaleKeys, localFrame, c.viewScale, core::KeyInterpolation::Linear);
+}
+
 QPointF sampledRelativeForTool(const core::Project::Tool& t,
                                const core::Project::AnimationClip* clipOrNull,
                                int localFrame) {
@@ -201,8 +223,10 @@ ResolvedProjectFrame evaluateAtFrame(const core::Project& project, int frame, in
     ResolvedProjectFrame out;
     const auto& ents = project.entities();
     const auto& tools = project.tools();
+    const auto& cams = project.cameras();
     out.entities.reserve(ents.size());
     out.tools.reserve(tools.size());
+    out.cameras.reserve(cams.size());
 
     const StripEvalCtx ctx = resolveStripCtx(project, frame);
     const int localFrame = ctx.localFrame;
@@ -324,6 +348,13 @@ ResolvedProjectFrame evaluateAtFrame(const core::Project& project, int frame, in
         out.tools.push_back(ResolvedTool{t, op});
     }
 
+    for (const auto& c : cams) {
+        core::Project::Camera cam = c;
+        cam.centerWorld = sampledCenterForCamera(c, clip, localFrame);
+        cam.viewScale = sampledViewScaleForCamera(c, clip, localFrame);
+        out.cameras.push_back(ResolvedCamera{std::move(cam)});
+    }
+
     return out;
 }
 

client/core/eval/ProjectEvaluator.h

@@ -19,9 +19,14 @@ struct ResolvedTool {
     double opacity = 1.0;          // 0..1
 };
 
+struct ResolvedCamera {
+    core::Project::Camera camera;  // 拷贝：centerWorld / viewScale 已替换为求值后的值
+};
+
 struct ResolvedProjectFrame {
     QVector<ResolvedEntity> entities;
     QVector<ResolvedTool> tools;
+    QVector<ResolvedCamera> cameras;
 };
 
 /// 逐帧求值：处理父子跟随与工具可见性淡入淡出。