From 01740f7635b1c3ff0df6433adbc75e8a83a8b6f1 Mon Sep 17 00:00:00 2001
From: themancalledjakob <jakob@jrkb.land>
Date: Sun, 25 Jun 2023 15:34:45 +0200
Subject: [PATCH] fade via uniform

---
 src/MsdfAtlasLayerCombo.cpp | 3 ++-
 src/MsdfAtlasLayerCombo.h   | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/MsdfAtlasLayerCombo.cpp b/src/MsdfAtlasLayerCombo.cpp
index 4c9da49..9be529c 100644
--- a/src/MsdfAtlasLayerCombo.cpp
+++ b/src/MsdfAtlasLayerCombo.cpp
@@ -139,7 +139,7 @@ bool MsdfAtlasLayerCombo::hasChildren(){
 }
 
 // unique
-void MsdfAtlasLayerCombo::draw(){
+void MsdfAtlasLayerCombo::draw(bool fade){
     OFX_PROFILER_FUNCTION()
     int elements = 0;
     for(const auto & layer : layers){
@@ -188,6 +188,7 @@ void MsdfAtlasLayerCombo::draw(){
     //ofPopStyle();
 
     msdfShader->begin();
+    msdfShader->setUniform1f("fade", fade ? 1.0f : 0.0f);
     msdfShader->setUniform2f("unitRange", unitRange);
     msdfShader->setUniform4f("bgColor", bgColor);
     msdfShader->setUniformTexture("msdf", getAtlasImage().getTexture(), 0);
diff --git a/src/MsdfAtlasLayerCombo.h b/src/MsdfAtlasLayerCombo.h
index a25c0c7..288e0dd 100644
--- a/src/MsdfAtlasLayerCombo.h
+++ b/src/MsdfAtlasLayerCombo.h
@@ -21,7 +21,7 @@ class MsdfAtlasLayerCombo : public AtlasLayerCombo {
         const ComboIdentifier & getIdentifier() const override;
         void setVFlip(VFlipState vFlipState) override;
         bool hasChildren() override;
-        void draw();
+        void draw(bool fade = true);
         void exit();
         const ofImage & getAtlasImage();
         string getAtlasImagePath();