From 3f122e57f118db1229a4bad2c54be624f2f8f19c Mon Sep 17 00:00:00 2001
From: LaG1924 <lag1924@gmail.com>
Date: Sun, 5 Dec 2021 00:51:39 +0500
Subject: Added SSAO

---
 cwd/assets/altcraft/shaders/frag/entity.fs |  8 +++-
 cwd/assets/altcraft/shaders/frag/face.fs   |  7 +++-
 cwd/assets/altcraft/shaders/frag/light.fs  | 24 ++++++++++--
 cwd/assets/altcraft/shaders/frag/sky.fs    |  9 ++++-
 cwd/assets/altcraft/shaders/frag/ssao.fs   | 55 ++++++++++++++++++++++++++
 cwd/assets/altcraft/shaders/vert/entity.vs |  6 +++
 cwd/assets/altcraft/shaders/vert/face.vs   |  6 +++
 cwd/assets/altcraft/shaders/vert/fbo.vs    |  3 ++
 cwd/assets/altcraft/shaders/vert/light.vs  |  3 ++
 cwd/assets/altcraft/shaders/vert/pp.vs     |  3 ++
 cwd/assets/altcraft/shaders/vert/rml.vs    |  3 ++
 cwd/assets/altcraft/shaders/vert/sky.vs    |  3 ++
 src/Gal.hpp                                |  1 +
 src/GalOgl.cpp                             | 14 ++++++-
 src/Render.cpp                             | 18 +++++++++
 src/RenderConfigs.cpp                      | 62 +++++++++++++++++++++++++-----
 src/RenderConfigs.hpp                      | 14 ++++++-
 src/RendererSectionData.cpp                |  2 +-
 src/RendererWorld.cpp                      | 15 +++++---
 19 files changed, 227 insertions(+), 29 deletions(-)
 create mode 100644 cwd/assets/altcraft/shaders/frag/ssao.fs

diff --git a/cwd/assets/altcraft/shaders/frag/entity.fs b/cwd/assets/altcraft/shaders/frag/entity.fs
index be4da09..6e77a29 100644
--- a/cwd/assets/altcraft/shaders/frag/entity.fs
+++ b/cwd/assets/altcraft/shaders/frag/entity.fs
@@ -1,15 +1,19 @@
 #version 330 core
 
+in vec4 entityWorldPos;
+
 layout (location = 0) out vec4 color;
 layout (location = 1) out vec4 normal;
-layout (location = 2) out vec4 addColor;
-layout (location = 3) out vec4 light;
+layout (location = 2) out vec4 worldPos;
+layout (location = 3) out vec4 addColor;
+layout (location = 4) out vec4 light;
 
 uniform vec3 entityColor;
 
 void main() {
     color = vec4(entityColor, 1.0f);
     normal = vec4(0.0f, 0.0f, 0.0f, 1.0f);
+    worldPos = entityWorldPos;
     addColor = vec4(0.0f, 0.0f, 0.0f, 1.0f);
     light = vec4(1.0f, 1.0f, 0.0f, 1.0f);
 }
diff --git a/cwd/assets/altcraft/shaders/frag/face.fs b/cwd/assets/altcraft/shaders/frag/face.fs
index ebda304..65b7d15 100644
--- a/cwd/assets/altcraft/shaders/frag/face.fs
+++ b/cwd/assets/altcraft/shaders/frag/face.fs
@@ -1,5 +1,6 @@
 #version 330 core
 
+in vec4 faceWorldPos;
 in vec3 faceTextureUv;
 in vec3 faceAddColor;
 in vec3 faceNormal;
@@ -7,8 +8,9 @@ in vec2 faceLight;
 
 layout (location = 0) out vec4 color;
 layout (location = 1) out vec4 normal;
-layout (location = 2) out vec4 addColor;
-layout (location = 3) out vec4 light;
+layout (location = 2) out vec4 worldPos;
+layout (location = 3) out vec4 addColor;
+layout (location = 4) out vec4 light;
 
 uniform sampler2DArray textureAtlas;
 
@@ -19,6 +21,7 @@ void main() {
 
     color = vec4(col.rgb, 1.0f);
     normal = vec4(faceNormal, 1.0f);
+    worldPos = faceWorldPos;
     addColor = vec4(faceAddColor, 1.0f);
     light = vec4(faceLight / 15.0f, 0.0f, 1.0f);
 }
diff --git a/cwd/assets/altcraft/shaders/frag/light.fs b/cwd/assets/altcraft/shaders/frag/light.fs
index 117e0ef..fd7aa4e 100644
--- a/cwd/assets/altcraft/shaders/frag/light.fs
+++ b/cwd/assets/altcraft/shaders/frag/light.fs
@@ -4,17 +4,22 @@ out vec4 fragColor;
 
 in vec2 uv;
 
+uniform sampler2D depthStencil;
 uniform sampler2D color;
 uniform sampler2D normal;
+uniform sampler2D worldPos;
 uniform sampler2D addColor;
 uniform sampler2D light;
-uniform sampler2D depthStencil;
+uniform sampler2D ssao;
 
 uniform int renderBuff;
 
 layout (std140) uniform Globals {
     mat4 projView;
+    mat4 proj;
+    mat4 view;
     uvec2 viewportSize;
+    vec4 ssaoKernels[64];
     float globalTime;
     float dayTime;
     float gamma;
@@ -23,9 +28,14 @@ layout (std140) uniform Globals {
 void main() {
     vec4 c = texture(color, uv);
     vec4 n = texture(normal, uv);
+    n += 1.0f;
+    n /= 2.0f;
+
+    vec4 wp = texture(worldPos, uv);
     vec4 ac = texture(addColor, uv);
     vec4 l = texture(light, uv);
     float d = (1.0f - texture(depthStencil, uv).r) * 16.0f;
+    vec4 s = texture(ssao, uv);
 
     float faceLight = l.r;
     float skyLight = l.g;
@@ -34,7 +44,7 @@ void main() {
     lightLevel = clamp(lightLevel, 0.005f, 1.0f);
     vec3 faceColor = mix(ac.rgb * lightLevel, vec3(1,1,1) * lightLevel, float(ac.rgb == vec3(0,0,0)));
 
-    vec4 finalColor = vec4(c.rgb * faceColor, 1.0f);
+    vec4 finalColor = vec4(c.rgb * faceColor * (1.0f - s.r), 1.0f);
 
     finalColor.rgb = pow(finalColor.rgb, vec3(1.0f / gamma));
 
@@ -49,13 +59,19 @@ void main() {
             fragColor = n;
             break;
         case 3:
-            fragColor = ac;
+            fragColor = wp;
             break;
         case 4:
-            fragColor = l;
+            fragColor = ac;
             break;
         case 5:
+            fragColor = l;
+            break;
+        case 6:
             fragColor = vec4(vec3(d), 1.0f);
             break;
+        case 7:
+            fragColor = s;
+            break;
     }
 }
diff --git a/cwd/assets/altcraft/shaders/frag/sky.fs b/cwd/assets/altcraft/shaders/frag/sky.fs
index 1e36dd3..65a56ad 100644
--- a/cwd/assets/altcraft/shaders/frag/sky.fs
+++ b/cwd/assets/altcraft/shaders/frag/sky.fs
@@ -4,12 +4,16 @@ in vec3 facePos;
 
 layout (location = 0) out vec4 color;
 layout (location = 1) out vec4 normal;
-layout (location = 2) out vec4 addColor;
-layout (location = 3) out vec4 light;
+layout (location = 2) out vec4 worldPos;
+layout (location = 3) out vec4 addColor;
+layout (location = 4) out vec4 light;
 
 layout (std140) uniform Globals {
     mat4 projView;
+    mat4 proj;
+    mat4 view;
     uvec2 viewportSize;
+    vec4 ssaoKernels[64];
     float globalTime;
     float dayTime;
     float gamma;
@@ -61,6 +65,7 @@ void main() {
     color += vec4(Sun().rgb, 1.0f);
     color += vec4(Moon().rgb, 1.0f);
     normal = vec4(0.0f, 0.0f, 0.0f, 1.0f);
+    worldPos = vec4(0.0f, 0.0f, 0.0f, 1.0f);
     addColor = vec4(0.0f, 0.0f, 0.0f, 1.0f);
     light = vec4(1.0f, 1.0f, 0.0f, 1.0f);
 }
diff --git a/cwd/assets/altcraft/shaders/frag/ssao.fs b/cwd/assets/altcraft/shaders/frag/ssao.fs
new file mode 100644
index 0000000..f4fea34
--- /dev/null
+++ b/cwd/assets/altcraft/shaders/frag/ssao.fs
@@ -0,0 +1,55 @@
+#version 330 core
+
+out vec4 fragColor;
+
+in vec2 uv;
+
+uniform sampler2D normal;
+uniform sampler2D worldPos;
+uniform sampler2D ssaoNoise;
+
+layout (std140) uniform Globals {
+    mat4 projView;
+    mat4 proj;
+    mat4 view;
+    uvec2 viewportSize;
+    vec4 ssaoKernels[64];
+    float globalTime;
+    float dayTime;
+    float gamma;
+};
+
+const vec2 noiseScale = vec2(4.0f, 4.0f);
+const int kernelSize = 64;
+const float radius = 0.5f;
+const float bias = 0.025f;
+
+void main() {
+    vec3 normal = texture(normal, uv).xyz;
+    vec3 fragPos = texture(worldPos, uv).xyz;
+    vec2 noiseUv = uv * viewportSize / noiseScale;
+
+    vec3 randomVec = texture(ssaoNoise, noiseUv).xyz;
+
+    vec3 tangent = normalize(randomVec - normal * dot(randomVec, normal));
+    vec3 bitangent = cross(normal, tangent);
+    mat3 TBN = mat3(tangent, bitangent, normal);  
+
+    float occlusion = 0.0;
+    for(int i = 0; i < kernelSize; i++)
+    {
+        vec3 samplePos = TBN * ssaoKernels[i].xyz;
+        samplePos = fragPos + samplePos * radius; 
+
+        vec4 offset = vec4(samplePos, 1.0);
+        offset = proj * offset;
+        offset.xyz /= offset.w;
+        offset.xyz  = offset.xyz * 0.5 + 0.5;
+
+        float sampleDepth = texture(worldPos, offset.xy).z;
+        float rangeCheck = smoothstep(0.0, 1.0, radius / abs(fragPos.z - sampleDepth));
+        occlusion += (sampleDepth >= samplePos.z + bias ? 1.0 : 0.0) * rangeCheck;
+    }
+
+    fragColor = vec4(vec3(occlusion / kernelSize), 1.0f);
+}
diff --git a/cwd/assets/altcraft/shaders/vert/entity.vs b/cwd/assets/altcraft/shaders/vert/entity.vs
index 4acaa93..f90fbc1 100644
--- a/cwd/assets/altcraft/shaders/vert/entity.vs
+++ b/cwd/assets/altcraft/shaders/vert/entity.vs
@@ -2,11 +2,16 @@
 
 in vec3 pos;
 
+out vec4 entityWorldPos;
+
 uniform mat4 model;
 
 layout (std140) uniform Globals {
     mat4 projView;
+    mat4 proj;
+    mat4 view;
     uvec2 viewportSize;
+    vec4 ssaoKernels[64];
     float globalTime;
     float dayTime;
     float gamma;
@@ -14,4 +19,5 @@ layout (std140) uniform Globals {
 
 void main() {
     gl_Position = projView * model * vec4(pos, 1);
+    entityWorldPos = view * model * vec4(pos, 1.0f);
 }
diff --git a/cwd/assets/altcraft/shaders/vert/face.vs b/cwd/assets/altcraft/shaders/vert/face.vs
index 70c24c8..e50e503 100644
--- a/cwd/assets/altcraft/shaders/vert/face.vs
+++ b/cwd/assets/altcraft/shaders/vert/face.vs
@@ -8,6 +8,7 @@ in float animation;
 in vec3 color;
 in vec2 light;
 
+out vec4 faceWorldPos;
 out vec3 faceTextureUv;
 out vec3 faceNormal;
 out vec3 faceAddColor;
@@ -15,7 +16,10 @@ out vec2 faceLight;
 
 layout (std140) uniform Globals {
     mat4 projView;
+    mat4 proj;
+    mat4 view;
     uvec2 viewportSize;
+    vec4 ssaoKernels[64];
     float globalTime;
     float dayTime;
     float gamma;
@@ -24,6 +28,8 @@ layout (std140) uniform Globals {
 void main() {
     gl_Position = projView * vec4(pos[gl_VertexID], 1.0f);
 
+    faceWorldPos = view * vec4(pos[gl_VertexID], 1.0f);
+
     faceTextureUv = vec3(uv[gl_VertexID], uvLayer);
     faceTextureUv.y -= (uv[2].y - uv[0].y) * trunc(mod(globalTime * 4.0f, animation));
 
diff --git a/cwd/assets/altcraft/shaders/vert/fbo.vs b/cwd/assets/altcraft/shaders/vert/fbo.vs
index cfde14e..0e05eaf 100644
--- a/cwd/assets/altcraft/shaders/vert/fbo.vs
+++ b/cwd/assets/altcraft/shaders/vert/fbo.vs
@@ -7,7 +7,10 @@ out vec2 uv;
 
 layout (std140) uniform Globals {
     mat4 projView;
+    mat4 proj;
+    mat4 view;
     uvec2 viewportSize;
+    vec4 ssaoKernels[64];
     float globalTime;
     float dayTime;
     float gamma;
diff --git a/cwd/assets/altcraft/shaders/vert/light.vs b/cwd/assets/altcraft/shaders/vert/light.vs
index 4e551f8..118ea5b 100644
--- a/cwd/assets/altcraft/shaders/vert/light.vs
+++ b/cwd/assets/altcraft/shaders/vert/light.vs
@@ -7,7 +7,10 @@ out vec2 uv;
 
 layout (std140) uniform Globals {
     mat4 projView;
+    mat4 proj;
+    mat4 view;
     uvec2 viewportSize;
+    vec4 ssaoKernels[64];
     float globalTime;
     float dayTime;
     float gamma;
diff --git a/cwd/assets/altcraft/shaders/vert/pp.vs b/cwd/assets/altcraft/shaders/vert/pp.vs
index 4e551f8..118ea5b 100644
--- a/cwd/assets/altcraft/shaders/vert/pp.vs
+++ b/cwd/assets/altcraft/shaders/vert/pp.vs
@@ -7,7 +7,10 @@ out vec2 uv;
 
 layout (std140) uniform Globals {
     mat4 projView;
+    mat4 proj;
+    mat4 view;
     uvec2 viewportSize;
+    vec4 ssaoKernels[64];
     float globalTime;
     float dayTime;
     float gamma;
diff --git a/cwd/assets/altcraft/shaders/vert/rml.vs b/cwd/assets/altcraft/shaders/vert/rml.vs
index ea78825..c61a4a0 100644
--- a/cwd/assets/altcraft/shaders/vert/rml.vs
+++ b/cwd/assets/altcraft/shaders/vert/rml.vs
@@ -11,7 +11,10 @@ uniform vec2 translation;
 
 layout (std140) uniform Globals {
     mat4 projView;
+    mat4 proj;
+    mat4 view;
     uvec2 viewportSize;
+    vec4 ssaoKernels[64];
     float globalTime;
     float dayTime;
     float gamma;
diff --git a/cwd/assets/altcraft/shaders/vert/sky.vs b/cwd/assets/altcraft/shaders/vert/sky.vs
index 617caed..7043584 100644
--- a/cwd/assets/altcraft/shaders/vert/sky.vs
+++ b/cwd/assets/altcraft/shaders/vert/sky.vs
@@ -8,7 +8,10 @@ uniform mat4 model;
 
 layout (std140) uniform Globals {
     mat4 projView;
+    mat4 proj;
+    mat4 view;
     uvec2 viewportSize;
+    vec4 ssaoKernels[64];
     float globalTime;
     float dayTime;
     float gamma;
diff --git a/src/Gal.hpp b/src/Gal.hpp
index 8d7394a..76db560 100644
--- a/src/Gal.hpp
+++ b/src/Gal.hpp
@@ -63,6 +63,7 @@ namespace Gal {
         D24S8,
         R8G8B8,
         R8G8B8A8,
+        R32G32B32A32F,
     };
 
     enum class Filtering {
diff --git a/src/GalOgl.cpp b/src/GalOgl.cpp
index ff43ed8..c7344fe 100644
--- a/src/GalOgl.cpp
+++ b/src/GalOgl.cpp
@@ -311,10 +311,14 @@ GLenum GalTypeGetComponentGlType(Gal::Type type) {
 
 size_t GalFormatGetSize(Format format) {
     switch (format) {
+    case Format::D24S8:
+        return 4;
     case Format::R8G8B8:
         return 3;
     case Format::R8G8B8A8:
         return 4;
+    case Format::R32G32B32A32F:
+        return 16;
     default:
         return 0;
     }
@@ -329,6 +333,8 @@ GLenum GalFormatGetGlLinearInternalFormat(Format format) {
         return GL_RGB8;
     case Format::R8G8B8A8:
         return GL_RGBA8;
+    case Format::R32G32B32A32F:
+        return GL_RGBA32F;
     default:
         return 0;
     }
@@ -338,11 +344,13 @@ GLenum GalFormatGetGlLinearInternalFormat(Format format) {
 GLenum GalFormatGetGlInternalFormat(Format format) {
     switch (format) {
     case Format::D24S8:
-        return GL_DEPTH24_STENCIL8;
+        return 0;
     case Format::R8G8B8:
         return GL_SRGB;
     case Format::R8G8B8A8:
         return GL_SRGB_ALPHA;
+    case Format::R32G32B32A32F:
+        return 0;
     default:
         return 0;
     }
@@ -357,6 +365,8 @@ GLenum GalFormatGetGlFormat(Format format) {
         return GL_RGB;
     case Format::R8G8B8A8:
         return GL_RGBA;
+    case Format::R32G32B32A32F:
+        return GL_RGBA;
     default:
         return 0;
     }
@@ -371,6 +381,8 @@ GLenum GalFormatGetGlType(Format format) {
         return GL_UNSIGNED_BYTE;
     case Format::R8G8B8A8:
         return GL_UNSIGNED_BYTE;
+    case Format::R32G32B32A32F:
+        return GL_FLOAT;
     default:
         return 0;
     }
diff --git a/src/Render.cpp b/src/Render.cpp
index 4fc0616..1095148 100644
--- a/src/Render.cpp
+++ b/src/Render.cpp
@@ -1,5 +1,7 @@
 #include "Render.hpp"
 
+#include <random>
+
 #include <easylogging++.h>
 #include <optick.h>
 #include <RmlUi/Core.h>
@@ -146,6 +148,22 @@ void Render::PrepareToRendering() {
 
     gal->GetGlobalShaderParameters()->Get<GlobalShaderParameters>()->gamma = Settings::ReadDouble("gamma", 2.2);
 
+    std::mt19937 rng(std::chrono::steady_clock::now().time_since_epoch().count());
+    std::uniform_real_distribution<float> dis(-1.0f, 1.0f);
+    auto& ssaoKernels = gal->GetGlobalShaderParameters()->Get<GlobalShaderParameters>()->ssaoKernels;
+    for (auto& vec : ssaoKernels) {
+        vec.x = dis(rng);
+        vec.y = dis(rng);
+        vec.z = (dis(rng) + 1.0f) / 2.0f;
+        vec.w = 0.0f;
+        vec = glm::normalize(vec);
+    }
+    for (size_t i = 0; i < sizeof(ssaoKernels) / sizeof(*ssaoKernels); i++) {
+        float scale = i / 64.0f;
+        scale = glm::mix(0.1f, 1.0f, scale * scale);
+        ssaoKernels[i] *= scale;
+    }
+
     std::string vertexSource, pixelSource;
     {
         auto vertAsset = AssetManager::GetAssetByAssetName("/altcraft/shaders/vert/fbo");
diff --git a/src/RenderConfigs.cpp b/src/RenderConfigs.cpp
index aad2c59..d185c79 100644
--- a/src/RenderConfigs.cpp
+++ b/src/RenderConfigs.cpp
@@ -1,5 +1,8 @@
 #include "RenderConfigs.hpp"
 
+#include <chrono>
+#include <random>
+
 #include "AssetManager.hpp"
 
 std::string LoadShaderCode(std::string_view assetPath) {
@@ -85,7 +88,7 @@ Gbuffer::Gbuffer(size_t geomW, size_t geomH, size_t lightW, size_t lightH) {
     colorConf->SetMaxFilter(Gal::Filtering::Bilinear);
     color = gal->BuildTexture(colorConf);
 
-    auto normalConf = gal->CreateTexture2DConfig(geomW, geomH, Gal::Format::R8G8B8);
+    auto normalConf = gal->CreateTexture2DConfig(geomW, geomH, Gal::Format::R32G32B32A32F);
     normalConf->SetMinFilter(Gal::Filtering::Bilinear);
     normalConf->SetMaxFilter(Gal::Filtering::Bilinear);
     normal = gal->BuildTexture(normalConf);
@@ -105,30 +108,69 @@ Gbuffer::Gbuffer(size_t geomW, size_t geomH, size_t lightW, size_t lightH) {
     dsConf->SetMaxFilter(Gal::Filtering::Bilinear);
     depthStencil = gal->BuildTexture(dsConf);
 
+    auto worldPosConf = gal->CreateTexture2DConfig(geomW, geomH, Gal::Format::R32G32B32A32F);
+    worldPosConf->SetMinFilter(Gal::Filtering::Bilinear);
+    worldPosConf->SetMaxFilter(Gal::Filtering::Bilinear);
+    worldPos = gal->BuildTexture(worldPosConf);
+
     auto geomFbConf = gal->CreateFramebufferConfig();
+    geomFbConf->SetDepthStencil(depthStencil);
     geomFbConf->SetTexture(0, color);
     geomFbConf->SetTexture(1, normal);
-    geomFbConf->SetTexture(2, addColor);
-    geomFbConf->SetTexture(3, light);
-    geomFbConf->SetDepthStencil(depthStencil);
+    geomFbConf->SetTexture(2, worldPos);
+    geomFbConf->SetTexture(3, addColor);
+    geomFbConf->SetTexture(4, light);
 
     geomFramebuffer = gal->BuildFramebuffer(geomFbConf);
     geomFramebuffer->SetViewport(0, 0, geomW, geomH);
 
-    std::vector<std::pair<std::string_view, std::shared_ptr<Gal::Texture>>> lightingTexture = {
-        {"color", color},
-        {"addColor", addColor},
+    auto noiseConf = gal->CreateTexture2DConfig(4, 4, Gal::Format::R32G32B32A32F);
+    noiseConf->SetWrapping(Gal::Wrapping::Repeat);
+    noiseConf->SetMinFilter(Gal::Filtering::Bilinear);
+    noiseConf->SetMaxFilter(Gal::Filtering::Bilinear);
+    ssaoNoise = gal->BuildTexture(noiseConf);
+
+    std::mt19937 rng(std::chrono::steady_clock::now().time_since_epoch().count());
+    std::uniform_real_distribution<> dis(-1.0f, 1.0f);
+    std::vector<glm::vec4> noiseTexData(16);
+    for (auto& vec : noiseTexData) {
+        vec.x = dis(rng);
+        vec.y = dis(rng);
+        vec.z = 0.0f;
+        vec.w = 0.0f;
+    }
+    ssaoNoise->SetData({ reinterpret_cast<std::byte*>(noiseTexData.data()), reinterpret_cast<std::byte*>(noiseTexData.data() + noiseTexData.size()) });
+
+    std::vector<std::pair<std::string_view, std::shared_ptr<Gal::Texture>>> ssaoTextures = {
         {"normal", normal},
-        {"light", light},
-        {"depthStencil", depthStencil},
+        {"worldPos", worldPos},
+        {"ssaoNoise", ssaoNoise},
     };
 
+    ssaoPass = std::make_unique<PostProcess>(LoadPixelShader("/altcraft/shaders/frag/ssao"),
+        ssaoTextures,
+        std::vector<std::pair<std::string_view, Gal::Type>>{},
+        lightW,
+        lightH,
+        Gal::Format::R8G8B8A8,
+        Gal::Filtering::Bilinear);
+
     std::vector<std::pair<std::string_view, Gal::Type>> lightingParameters = {
         {"renderBuff", Gal::Type::Int32},
     };
 
+    std::vector<std::pair<std::string_view, std::shared_ptr<Gal::Texture>>> lightingTextures = {
+        {"depthStencil", depthStencil},
+        {"color", color},
+        {"normal", normal},
+        {"worldPos", worldPos},
+        {"addColor", addColor},
+        {"light", light},
+        {"ssao", ssaoPass->GetResultTexture()},
+    };
+
     lightingPass = std::make_unique<PostProcess>(LoadPixelShader("/altcraft/shaders/frag/light"),
-        lightingTexture, 
+        lightingTextures,
         lightingParameters,
         lightW,
         lightH,
diff --git a/src/RenderConfigs.hpp b/src/RenderConfigs.hpp
index 1e6a978..ef4c97d 100644
--- a/src/RenderConfigs.hpp
+++ b/src/RenderConfigs.hpp
@@ -4,7 +4,12 @@
 
 struct GlobalShaderParameters {
     glm::mat4 projView;
+    glm::mat4 proj;
+    glm::mat4 view;
     glm::uvec2 viewportSize;
+    glm::uint32 paddingFA = 0xFAAFFAFA;
+    glm::uint32 paddingFB = 0xFBFBFBFB;
+    glm::vec4 ssaoKernels[64];
     glm::float32 globalTime;
     glm::float32 dayTime;
     glm::float32 gamma;
@@ -55,12 +60,15 @@ public:
 };
 
 class Gbuffer {
+    std::shared_ptr<Gal::Texture> ssaoNoise;
+    std::unique_ptr<PostProcess> ssaoPass;
     std::unique_ptr<PostProcess> lightingPass;
+    std::shared_ptr<Gal::Texture> depthStencil;
     std::shared_ptr<Gal::Texture> color; //RGB - color
     std::shared_ptr<Gal::Texture> normal; //RGB - normal
+    std::shared_ptr<Gal::Texture> worldPos; //RGB - viewSpaceWorldPos
     std::shared_ptr<Gal::Texture> addColor; //RGB - addColor
     std::shared_ptr<Gal::Texture> light; //R - faceLight, G - skyLight, B - unused
-    std::shared_ptr<Gal::Texture> depthStencil;
     std::shared_ptr<Gal::Framebuffer> geomFramebuffer;
 
 public:
@@ -75,16 +83,18 @@ public:
     }
 
     void Render() {
+        ssaoPass->Render();
         lightingPass->Render();
     }
 
     void Clear() {
         geomFramebuffer->Clear();
+        ssaoPass->Clear();
         lightingPass->Clear();
     }
 
     int GetMaxRenderBuffers() {
-        return 5;
+        return 7;
     }
 
     void SetRenderBuff(int renderBuff) {
diff --git a/src/RendererSectionData.cpp b/src/RendererSectionData.cpp
index 0ac901e..45d242c 100644
--- a/src/RendererSectionData.cpp
+++ b/src/RendererSectionData.cpp
@@ -58,7 +58,7 @@ void AddFacesByBlockModel(RendererSectionData &data, const BlockFaces &model, co
 		vertexData.positions[2] = transformed * glm::vec4(1, 0, 1, 1);
 		vertexData.positions[3] = transformed * glm::vec4(1, 0, 0, 1);
 
-        vertexData.normal = normal;
+        vertexData.normal = model.transform * face.transform * glm::vec4(normal, 1.0f);
 
 		vertexData.uvs[0] = TransformTextureCoord(face.texture, glm::vec2(0, 0), face.frames);
 		vertexData.uvs[1] = TransformTextureCoord(face.texture, glm::vec2(1, 0), face.frames);
diff --git a/src/RendererWorld.cpp b/src/RendererWorld.cpp
index 846788b..2108ba6 100644
--- a/src/RendererWorld.cpp
+++ b/src/RendererWorld.cpp
@@ -278,15 +278,20 @@ RendererWorld::~RendererWorld() {
 void RendererWorld::Render(float screenRatio) {
 	OPTICK_EVENT();
     //Common
-    glm::mat4 projection = glm::perspective(
+
+    auto globalSpb = Gal::GetImplementation()->GetGlobalShaderParameters();
+
+    auto& projection = globalSpb->Get<GlobalShaderParameters>()->proj;
+    projection = glm::perspective(
         glm::radians(70.0f), screenRatio,
         0.1f, 10000000.0f
     );
-    glm::mat4 view = GetGameState()->GetViewMatrix();
-    glm::mat4 projView = projection * view;
 
-    auto globalSpb = Gal::GetImplementation()->GetGlobalShaderParameters();
-    globalSpb->Get<GlobalShaderParameters>()->projView = projView;
+    auto& view = globalSpb->Get<GlobalShaderParameters>()->view;
+    view = GetGameState()->GetViewMatrix();
+
+    auto& projView = globalSpb->Get<GlobalShaderParameters>()->projView;
+    projView = projection * view;
 
     //Render Entities
     constexpr size_t entitiesVerticesCount = 240;
-- 
cgit v1.2.3