From 412334cf74d54946f5f2385793d2178bc3092fdd Mon Sep 17 00:00:00 2001
From: ssdfasd <2156608475@qq.com>
Date: Wed, 11 Mar 2026 22:17:49 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E4=BD=93=E7=A7=AF=E4=BA=91?=
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问题：之前的 intersectBox 限制了射线采样范围，
导致靠近相机的一侧云被切掉

修复：移除边界框检测，直接使用相机裁剪平面 [0.1, 1000]
让 HDDA 树遍历器自己处理空区域

效果：体积云渲染完整，不再有切割感
---
 Res/Shader/volume.hlsl | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/Res/Shader/volume.hlsl b/Res/Shader/volume.hlsl
index 82b618a2..30ef62ea 100644
--- a/Res/Shader/volume.hlsl
+++ b/Res/Shader/volume.hlsl
@@ -112,12 +112,8 @@ float4 MainPS(PSInput input) : SV_TARGET
 {
     float3 rayDir = normalize(input.worldPos - _CameraPos);
     
-    float tmin, tmax;
-    if (!intersectBox(_CameraPos, rayDir, _BBoxMin, _BBoxMax, tmin, tmax)) {
-        return float4(0, 0, 0, 0);
-    }
-    
-    tmin = max(0, tmin);
+    float tmin = 0.1;
+    float tmax = 1000.0;
     
     NanoVolume volume;
     initVolume(volume);