From 93a5385cb03482d09108edef1433a9f470bf1e4a Mon Sep 17 00:00:00 2001
From: LaG1924 <lag1924@gmail.com>
Date: Sun, 5 Dec 2021 04:26:50 +0500
Subject: Added SSAO blur

---
 src/RenderConfigs.cpp | 20 +++++++++++++++++++-
 src/RenderConfigs.hpp |  3 +++
 2 files changed, 22 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/RenderConfigs.cpp b/src/RenderConfigs.cpp
index d185c79..88166a5 100644
--- a/src/RenderConfigs.cpp
+++ b/src/RenderConfigs.cpp
@@ -155,6 +155,24 @@ Gbuffer::Gbuffer(size_t geomW, size_t geomH, size_t lightW, size_t lightH) {
         Gal::Format::R8G8B8A8,
         Gal::Filtering::Bilinear);
 
+    std::vector<std::pair<std::string_view, std::shared_ptr<Gal::Texture>>> ssaoBlurTextures = {
+        {"blurInput", ssaoPass->GetResultTexture()},
+    };
+
+    std::vector<std::pair<std::string_view, Gal::Type>> ssaoBlurParameters = {
+        {"blurScale", Gal::Type::Int32},
+    };
+
+    ssaoBlurPass = std::make_unique<PostProcess>(LoadPixelShader("/altcraft/shaders/frag/blur"),
+        ssaoBlurTextures,
+        ssaoBlurParameters,
+        lightW,
+        lightH,
+        Gal::Format::R8G8B8A8,
+        Gal::Filtering::Bilinear);
+
+    ssaoBlurPass->SetShaderParameter("blurScale", 2);
+
     std::vector<std::pair<std::string_view, Gal::Type>> lightingParameters = {
         {"renderBuff", Gal::Type::Int32},
     };
@@ -166,7 +184,7 @@ Gbuffer::Gbuffer(size_t geomW, size_t geomH, size_t lightW, size_t lightH) {
         {"worldPos", worldPos},
         {"addColor", addColor},
         {"light", light},
-        {"ssao", ssaoPass->GetResultTexture()},
+        {"ssao", ssaoBlurPass->GetResultTexture()},
     };
 
     lightingPass = std::make_unique<PostProcess>(LoadPixelShader("/altcraft/shaders/frag/light"),
diff --git a/src/RenderConfigs.hpp b/src/RenderConfigs.hpp
index ef4c97d..0667bbe 100644
--- a/src/RenderConfigs.hpp
+++ b/src/RenderConfigs.hpp
@@ -62,6 +62,7 @@ public:
 class Gbuffer {
     std::shared_ptr<Gal::Texture> ssaoNoise;
     std::unique_ptr<PostProcess> ssaoPass;
+    std::unique_ptr<PostProcess> ssaoBlurPass;
     std::unique_ptr<PostProcess> lightingPass;
     std::shared_ptr<Gal::Texture> depthStencil;
     std::shared_ptr<Gal::Texture> color; //RGB - color
@@ -84,12 +85,14 @@ public:
 
     void Render() {
         ssaoPass->Render();
+        ssaoBlurPass->Render();
         lightingPass->Render();
     }
 
     void Clear() {
         geomFramebuffer->Clear();
         ssaoPass->Clear();
+        ssaoBlurPass->Clear();
         lightingPass->Clear();
     }
 
-- 
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