Disable frustum culling in 3D perspective mode (only cull in 2D ortho)

Author: milanofthe

web/src/lib/render/canvas3d.ts

@@ -1030,8 +1030,8 @@ export function render3D(
 		}
 	}
 
-	// Compute 2D view bounds for frustum culling
-	const viewBounds = getViewBounds2D(vp);
+	// Compute 2D view bounds for frustum culling (only reliable in ortho/near-ortho mode)
+	const viewBounds = orthoBlend > 0.3 ? getViewBounds2D(vp) : null;
 
 	// Draw geometry
 	{