From daa598954ffa879747471662be9afab543e4bdce Mon Sep 17 00:00:00 2001
From: youle31 <you.le@live.fr>
Date: Thu, 27 Jul 2023 21:14:47 +0200
Subject: [PATCH] UPBGE: Change previous commmit to fix
 https://github.com/UPBGE/upbge/issues/1827

because i was not comfortable with what i did previously
---
 source/gameengine/Ketsji/KX_Scene.cpp           |  7 ++++---
 .../gameengine/Rasterizer/RAS_FrameBuffer.cpp   | 17 +++++++++++++++++
 source/gameengine/Rasterizer/RAS_FrameBuffer.h  |  2 ++
 3 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/source/gameengine/Ketsji/KX_Scene.cpp b/source/gameengine/Ketsji/KX_Scene.cpp
index 11719551ee43..19274015b442 100644
--- a/source/gameengine/Ketsji/KX_Scene.cpp
+++ b/source/gameengine/Ketsji/KX_Scene.cpp
@@ -886,15 +886,16 @@ void KX_Scene::RenderAfterCameraSetup(KX_Camera *cam,
   RAS_FrameBuffer *input = rasty->GetFrameBuffer(rasty->NextFilterFrameBuffer(r));
   RAS_FrameBuffer *output = rasty->GetFrameBuffer(rasty->NextRenderFrameBuffer(s));
 
+  GPUTexture *color = GPU_viewport_color_texture(m_currentGPUViewport, 0);
+
   GPUAttachment config[] = {
       GPU_ATTACHMENT_TEXTURE(GPU_viewport_depth_texture(m_currentGPUViewport)),
-      GPU_ATTACHMENT_TEXTURE(GPU_viewport_color_texture(m_currentGPUViewport, 0))};
+      GPU_ATTACHMENT_TEXTURE(color)};
 
   GPU_framebuffer_config_array(
       input->GetFrameBuffer(), config, sizeof(config) / sizeof(GPUAttachment));
 
-  GPU_framebuffer_config_array(
-      output->GetFrameBuffer(), config, sizeof(config) / sizeof(GPUAttachment));
+  output->UpdateSize(GPU_texture_width(color), GPU_texture_height(color));
 
   RAS_FrameBuffer *f = is_overlay_pass ? input : Render2DFilters(rasty, canvas, input, output);
 
diff --git a/source/gameengine/Rasterizer/RAS_FrameBuffer.cpp b/source/gameengine/Rasterizer/RAS_FrameBuffer.cpp
index c6dc7d679a7f..6c9519c64eb1 100644
--- a/source/gameengine/Rasterizer/RAS_FrameBuffer.cpp
+++ b/source/gameengine/Rasterizer/RAS_FrameBuffer.cpp
@@ -78,6 +78,23 @@ GPUTexture *RAS_FrameBuffer::GetDepthAttachment()
   return m_depthAttachment;
 }
 
+void RAS_FrameBuffer::UpdateSize(int width, int height)
+{
+  if (GPU_texture_width(m_colorAttachment) != width ||
+      GPU_texture_height(m_colorAttachment) != height) {
+    GPU_texture_free(m_colorAttachment);
+    GPU_texture_free(m_depthAttachment);
+    m_colorAttachment = GPU_texture_create_2d(
+        "color_tex", width, height, 1, GPU_RGBA16F, GPU_TEXTURE_USAGE_GENERAL, nullptr);
+    m_depthAttachment = GPU_texture_create_2d(
+        "depth_tex", width, height, 1, GPU_DEPTH24_STENCIL8, GPU_TEXTURE_USAGE_GENERAL, nullptr);
+    GPUAttachment config[] = {GPU_ATTACHMENT_TEXTURE(m_depthAttachment),
+                              GPU_ATTACHMENT_TEXTURE(m_colorAttachment)};
+
+    GPU_framebuffer_config_array(m_frameBuffer, config, sizeof(config) / sizeof(GPUAttachment));
+  }
+}
+
 RAS_Rasterizer::FrameBufferType RAS_FrameBuffer::GetType() const
 {
   return m_frameBufferType;
diff --git a/source/gameengine/Rasterizer/RAS_FrameBuffer.h b/source/gameengine/Rasterizer/RAS_FrameBuffer.h
index 05570a74cb5d..0f5f7c1a1898 100644
--- a/source/gameengine/Rasterizer/RAS_FrameBuffer.h
+++ b/source/gameengine/Rasterizer/RAS_FrameBuffer.h
@@ -57,5 +57,7 @@ class RAS_FrameBuffer {
   GPUTexture *GetColorAttachment();
   GPUTexture *GetDepthAttachment();
 
+  void UpdateSize(int width, int height);
+
   RAS_Rasterizer::FrameBufferType GetType() const;
 };