Only copy the relevant portion of the screen when copying to backbuffer in Compatibility backend

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/gles3/storage/texture_storage.cpp b/drivers/gles3/storage/texture_storage.cpp
index fcc1dee3e2..3e8ea10ff8 100644
--- a/drivers/gles3/storage/texture_storage.cpp
+++ b/drivers/gles3/storage/texture_storage.cpp
@@ -2599,7 +2599,10 @@ void TextureStorage::render_target_copy_to_back_buffer(RID p_render_target, cons
 	glBindFramebuffer(GL_FRAMEBUFFER, rt->backbuffer_fbo);
 	glActiveTexture(GL_TEXTURE0);
 	glBindTexture(GL_TEXTURE_2D, rt->color);
-	GLES3::CopyEffects::get_singleton()->copy_screen();
+	Rect2 normalized_region = region;
+	normalized_region.position = normalized_region.position / Size2(rt->size);
+	normalized_region.size = normalized_region.size / Size2(rt->size);
+	GLES3::CopyEffects::get_singleton()->copy_to_and_from_rect(normalized_region);
 
 	if (p_gen_mipmaps) {
 		GLES3::CopyEffects::get_singleton()->gaussian_blur(rt->backbuffer, rt->mipmap_count, region, rt->size);