update scene

LittleTheFu · LittleTheFu · commit f0d6aeb3ee9d · 2025-07-11T16:52:13.000+08:00
diff --git a/bxdf/lambertianBxdf.cpp b/bxdf/lambertianBxdf.cpp
@@ -29,10 +29,9 @@ Color LambertianBxdf::sample_f(const Vector3 &wo, Vector3 &wi, float &pdf, const
 
     pdf = wi.z * MathConstant::INV_PI; // cos(theta) / PI
 
-    // 避免 pdf 出现问题
     if (pdf < MathConstant::FLOAT_SMALL_NUMBER)
     {
-        pdf = 0.0f; // 或返回 Color::COLOR_BLACK
+        pdf = 0.0f;
         return Color::COLOR_BLACK;
     }
 
diff --git a/scene_builder/cubeSceneBuilder.cpp b/scene_builder/cubeSceneBuilder.cpp
@@ -25,7 +25,7 @@ void CubeSceneBuilder::build()
                true);
 
     buildModel(Vector3(0, 0, 150),
-               28,
+               25,
                ResourceDef::SLAB,
                MATERIAL_TYPE::M_MICRO_FACET_TRANSMISSION,
                false,

Original file line number	Diff line number	Diff line change
`@@ -29,10 +29,9 @@ Color LambertianBxdf::sample_f(const Vector3 &wo, Vector3 &wi, float &pdf, const`
`29`	`29`
`30`	`30`	`pdf = wi.z * MathConstant::INV_PI; // cos(theta) / PI`
`31`	`31`
`32`		`- // 避免 pdf 出现问题`
`33`	`32`	`if (pdf < MathConstant::FLOAT_SMALL_NUMBER)`
`34`	`33`	`{`
`35`		`- pdf = 0.0f; // 或返回 Color::COLOR_BLACK`
	`34`	`+ pdf = 0.0f;`
`36`	`35`	`return Color::COLOR_BLACK;`
`37`	`36`	`}`
`38`	`37`