From 949f707ad9e9c4f27407372ef3a5ad014ea1a443 Mon Sep 17 00:00:00 2001
From: scgm0 <2682963017@qq.com>
Date: Sat, 18 Jan 2025 00:04:17 +0800
Subject: [PATCH] Fix `ViewportTexture::get_size`

---
 scene/main/viewport.cpp | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/scene/main/viewport.cpp b/scene/main/viewport.cpp
index e9dfbd6189c..76b2502bade 100644
--- a/scene/main/viewport.cpp
+++ b/scene/main/viewport.cpp
@@ -126,7 +126,10 @@ int ViewportTexture::get_width() const {
 		_err_print_viewport_not_set();
 		return 0;
 	}
-	return get_size().width;
+	if (vp->is_sub_viewport()) {
+		return vp->size.width;
+	}
+	return vp->size.width * vp->get_stretch_transform().get_scale().width;
 }
 
 int ViewportTexture::get_height() const {
@@ -134,7 +137,10 @@ int ViewportTexture::get_height() const {
 		_err_print_viewport_not_set();
 		return 0;
 	}
-	return get_size().height;
+	if (vp->is_sub_viewport()) {
+		return vp->size.height;
+	}
+	return vp->size.height * vp->get_stretch_transform().get_scale().height;
 }
 
 Size2 ViewportTexture::get_size() const {
@@ -142,8 +148,11 @@ Size2 ViewportTexture::get_size() const {
 		_err_print_viewport_not_set();
 		return Size2();
 	}
-	float scale = MIN(vp->get_screen_transform().get_scale().width, vp->get_screen_transform().get_scale().height);
-	return Size2(vp->size.width * scale, vp->size.height * scale).ceil();
+	if (vp->is_sub_viewport()) {
+		return vp->size;
+	}
+	Size2 scale = vp->get_stretch_transform().get_scale();
+	return Size2(vp->size.width * scale.width, vp->size.height * scale.height).ceil();
 }
 
 RID ViewportTexture::get_rid() const {