From 92c07409ae8789bed31c09b145bf8a84bed8312e Mon Sep 17 00:00:00 2001
From: ManDude <7569514+ManDude@users.noreply.github.com>
Date: Fri, 25 Jul 2025 16:07:50 +0100
Subject: [PATCH] fix letterboxing

---
 game/graphics/opengl_renderer/OpenGLRenderer.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/game/graphics/opengl_renderer/OpenGLRenderer.cpp b/game/graphics/opengl_renderer/OpenGLRenderer.cpp
index ae85a4994c..e58e943566 100644
--- a/game/graphics/opengl_renderer/OpenGLRenderer.cpp
+++ b/game/graphics/opengl_renderer/OpenGLRenderer.cpp
@@ -1629,7 +1629,8 @@ void OpenGLRenderer::do_pcrtc_effects(float alp,
 
   glDisable(GL_DEPTH_TEST);
   glDisable(GL_BLEND);
-  glViewport(0, 0, m_fbo_state.resources.window.width, m_fbo_state.resources.window.height);
+  glViewport(render_state->draw_offset_x, render_state->draw_offset_y, render_state->draw_region_w,
+             render_state->draw_region_h);
   glBindTexture(GL_TEXTURE_2D, *window_blit_src->tex_id);
   glBindFramebuffer(GL_FRAMEBUFFER, 0);