From b5655efe0ed6708913e13f57700ebe885e609b7f Mon Sep 17 00:00:00 2001
From: Joshua Goins <josh@redstrate.com>
Date: Mon, 4 Apr 2022 11:06:39 -0400
Subject: [PATCH] Fix more stuff in SMAA pass

Now it's no longer flipped for some reason, gamma correction soon to follow
---
 engine/renderer/src/smaapass.cpp | 3 +--
 engine/shaders/blend.vert.glsl   | 3 ++-
 engine/shaders/edge.vert.glsl    | 3 ++-
 engine/shaders/smaa_common.glsl  | 2 +-
 4 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/engine/renderer/src/smaapass.cpp b/engine/renderer/src/smaapass.cpp
index 50eba2d..8ddf9c7 100755
--- a/engine/renderer/src/smaapass.cpp
+++ b/engine/renderer/src/smaapass.cpp
@@ -50,7 +50,6 @@ void SMAAPass::render(GFXCommandBuffer* command_buffer, RenderTarget& target) {
     
     struct PushConstant {
         prism::float4 viewport;
-        Matrix4x4 correction_matrix;
     } pc;
     
     pc.viewport = prism::float4(1.0f / static_cast<float>(target.extent.width), 1.0f / static_cast<float>(target.extent.height), target.extent.width, target.extent.height);
@@ -149,7 +148,7 @@ void SMAAPass::create_pipelines() {
     createInfo.render_pass = render_pass;
     
     createInfo.shader_input.push_constants = {
-        {sizeof(prism::float4) + sizeof(Matrix4x4), 0}
+        {sizeof(prism::float4), 0}
     };
     
     createInfo.shader_input.bindings = {
diff --git a/engine/shaders/blend.vert.glsl b/engine/shaders/blend.vert.glsl
index 076c6b6..8560afa 100644
--- a/engine/shaders/blend.vert.glsl
+++ b/engine/shaders/blend.vert.glsl
@@ -8,7 +8,8 @@ layout(location = 5) out vec2 outPixUV;
 
 void main() {
     outUV = vec2((gl_VertexIndex << 1) & 2, gl_VertexIndex & 2);
-    gl_Position = correctionMatrix * vec4(outUV * 2.0 + -1.0, 0.0, 1.0);
+    gl_Position = vec4(outUV * 2.0 + -1.0, 0.0, 1.0);
+    outUV.y = 1.0 - outUV.y;
 
     SMAABlendingWeightCalculationVS(outUV, outPixUV, outOffset);
 }
diff --git a/engine/shaders/edge.vert.glsl b/engine/shaders/edge.vert.glsl
index 57b3973..2348178 100644
--- a/engine/shaders/edge.vert.glsl
+++ b/engine/shaders/edge.vert.glsl
@@ -7,7 +7,8 @@ layout(location = 1) out vec4 outOffset[3];
 
 void main() {
     outUV = vec2((gl_VertexIndex << 1) & 2, gl_VertexIndex & 2);
-    gl_Position = correctionMatrix * vec4(outUV * 2.0 + -1.0, 0.0, 1.0);
+    gl_Position = vec4(outUV * 2.0 + -1.0, 0.0, 1.0);
+    outUV.y = 1.0 - outUV.y;
 
     SMAAEdgeDetectionVS(outUV, outOffset);
 }
diff --git a/engine/shaders/smaa_common.glsl b/engine/shaders/smaa_common.glsl
index 632c047..d6724b0 100644
--- a/engine/shaders/smaa_common.glsl
+++ b/engine/shaders/smaa_common.glsl
@@ -3,10 +3,10 @@
 #define SMAA_PRESET_ULTRA 1
 #define SMAA_GLSL_4 1
 #define SMAA_PREDICATION 1
+#define SMAA_FLIP_Y 0
 
 layout(push_constant) uniform PushConstant {
     vec4 viewport;
-    mat4 correctionMatrix;
 };
 
 #include "smaa.glsl"