From c0fb181c56e87ac2ed597fd7f98ae86d88d20575 Mon Sep 17 00:00:00 2001
From: kanglf20 <kanglf20@mails.tsinghua.edu.cn>
Date: Fri, 3 May 2024 07:46:16 +0800
Subject: [PATCH] Change alias table buffer in PowerLightSampler back to
 separate buffer object

---
 src/lightsamplers/power.cpp | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/src/lightsamplers/power.cpp b/src/lightsamplers/power.cpp
index d9094129..22408898 100644
--- a/src/lightsamplers/power.cpp
+++ b/src/lightsamplers/power.cpp
@@ -27,10 +27,10 @@ class PowerLightSampler final : public LightSampler {
 class PowerLightSamplerInstance final : public LightSampler::Instance {
 
 private:
-    BufferView<AliasEntry> _alias_table_buffer;
-    BufferView<float> _pdf_buffer;
     luisa::shared_ptr<Shader1D<uint>> _clear_light_power;
     luisa::shared_ptr<Shader1D<uint, float>> _compute_light_power;
+    Buffer<AliasEntry> _alias_table_buffer;
+    Buffer<float> _pdf_buffer;
     uint _light_handle_buffer_id{0u};
     uint _tag_lut_buffer_id{0u};
     float _env_prob{0.f};
@@ -45,10 +45,8 @@ class PowerLightSamplerInstance final : public LightSampler::Instance {
             _light_handle_buffer_id = light_handle_buffer_id;
             auto [tag_lut_buffer_view, tag_lut_buffer_id] = pipeline.bindless_arena_buffer<uint>(num_inst);
             _tag_lut_buffer_id = tag_lut_buffer_id;
-            auto [alias_table_buffer_view, alias_table_buffer_id] = pipeline.bindless_arena_buffer<AliasEntry>(num_light_inst);
-            _alias_table_buffer = alias_table_buffer_view;
-            auto [pdf_buffer_view, pdf_buffer_id] = pipeline.bindless_arena_buffer<float>(num_light_inst);
-            _pdf_buffer = pdf_buffer_view;
+            _alias_table_buffer = pipeline.device().create_buffer<AliasEntry>(num_light_inst);
+            _pdf_buffer = pipeline.device().create_buffer<float>(num_light_inst);
             command_buffer << light_handle_buffer_view.copy_from(pipeline.geometry()->light_instances().data()) << commit();
             luisa::vector<uint> tag_lut(num_inst);
             for (auto i = 0u; i < num_light_inst; i++) {