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シャドウ uniform バッファを毎フレーム更新して影ズレを修正#82
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HOST_VISIBLE バッファの内容を毎フレーム更新できるようにする。 VulkanBuffer では vkMapMemory/NativeMemory.Copy/vkUnmapMemory で実装。 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
ShadowData (lightSpaceVP + inverseVP) が初期化時に一度だけ書き込まれ 毎フレーム更新されていなかったため、カメラや物体が動くと ライティングシェーダのワールド座標復元がずれて影が元の位置に残っていた。 DeferredRenderSystem: 現在のカメラ VP の逆行列でバッファを更新 StereoDeferredRenderSystem: 左右の目ごとに inverseVP を更新 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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概要
ShadowData uniform バッファ (
lightSpaceVP+inverseVP) が初期化時に一度だけ書き込まれ、以降更新されていなかったため、カメラや物体が動くとライティングシェーダのワールド座標復元がずれて影が元の位置に残るバグを修正。変更内容
IBufferにUpdate(ReadOnlySpan<byte>)メソッドを追加VulkanBufferでvkMapMemory/NativeMemory.Copy/vkUnmapMemoryによる実装DeferredRenderSystem: 毎フレーム現在のカメラ VP の逆行列で shadow バッファを更新StereoDeferredRenderSystem: 左右の目ごとにinverseVPを更新Program.cs:DeferredRenderSystemにshadowBufferを渡すよう修正Updateメソッドを追加動作確認
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