From 14da9cce8d665d2872b76909e8abc001a9921297 Mon Sep 17 00:00:00 2001
From: Tim Redfern <tim@getdrop.com>
Date: Thu, 31 Aug 2017 23:16:52 +0100
Subject: additive no good

---
 gui/src/chainImage.cpp | 38 ++++++++++++++++++++++++++++++++------
 1 file changed, 32 insertions(+), 6 deletions(-)

(limited to 'gui/src/chainImage.cpp')

diff --git a/gui/src/chainImage.cpp b/gui/src/chainImage.cpp
index e2ee598..275b107 100644
--- a/gui/src/chainImage.cpp
+++ b/gui/src/chainImage.cpp
@@ -113,7 +113,7 @@ void chainImage::makeThumbnail(){
 	thumbnail.setAnchorPoint(thumbnail.getWidth()/2,thumbnail.getHeight()/2);
 }
 
-void chainImage::drawChain(float fadeIn){	
+void chainImage::drawChain(float fadeIn,bool additive, float intensity){	
 
 	//printf("Drawing chain transition: %f\n",transition);
 	//we are correctly geting to 1
@@ -121,9 +121,20 @@ void chainImage::drawChain(float fadeIn){
 
 	glPushMatrix();
 
-	ofDisableAlphaBlending(); 
+	if (additive){
+		glEnable(GL_BLEND);
+		glBlendFunc(GL_SRC_ALPHA, GL_ONE);
+		ofSetColor(255,255,255,255*(1.0f-min(1.0,transition/fadeIn))*intensity);
+	}
+	else {
+		glEnable(GL_BLEND);
+		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+		ofSetColor(255,255,255,255*intensity);
+	}
 
-	ofSetColor(255,255,255,255);
+	//ofDisableAlphaBlending(); 
+
+	
 
 	setAnchorPoint(getWidth()/2,getHeight()/2);
 
@@ -135,14 +146,18 @@ void chainImage::drawChain(float fadeIn){
 
 	glScalef(linkScale,linkScale,linkScale);
 
-	ofEnableAlphaBlending(); 
+	//ofEnableAlphaBlending();
+	glEnable(GL_BLEND);
 	 
-	ofSetColor(255,255,255,255*min(1.0,transition/fadeIn));
+	ofSetColor(255,255,255,255*min(1.0,transition/fadeIn)*intensity);
 
 	link->setAnchorPoint(link->getWidth()/2,link->getHeight()/2);
 
 	link->draw(0,0,link->getWidth(),link->getHeight());
 
+	glDisable(GL_BLEND);
+	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+
 	glPopMatrix();
 }
 
@@ -173,8 +188,15 @@ void chainImageSet::drawOutput(){
 
 	float camera_throw= (float)outputSize.y/(float)outputSize.x; //the ratio of z distance to x width
 
+	camera_throw*=0.9; //fudge factor to allow tweening
+
 	if (images.size()){
 
+/*
+		glMatrixMode(GL_PROJECTION);
+		glLoadIdentity();
+		glOrtho(-ofGetWidth()/2, ofGetWidth()/2, ofGetHeight()/2, -ofGetHeight()/2, 0.0f, 5000.0f);
+*/
 		glMatrixMode ( GL_MODELVIEW );
 		glLoadIdentity ( );
 		gluLookAt( currentImage->getTransform().x,
@@ -188,7 +210,7 @@ void chainImageSet::drawOutput(){
 					0);	
 
 		
-		currentImage->drawChain();
+		currentImage->drawChain(DEFAULT_FADEIN,additive,intensity);
 
 	}
 
@@ -391,6 +413,7 @@ void chainImageSet::keyPressed(ofKeyEventArgs &keyargs){
 			break;
 		case OF_KEY_BACKSPACE:{
 			images.clear();
+			filename.clear();
 			/*
 			auto previous=selected;
 			previous--;
@@ -463,6 +486,9 @@ void chainImageSet::mouseDragged(int x, int y, int button){
 		case OF_MOUSE_BUTTON_3:
 			//control-click
 			dragScale=(y-clickPoint.y)/(selected->thumbnail.getHeight());
+			//if (dragScale*selected->linkScale<0.15){
+			//	dragScale=0.15/selected->linkScale;
+			//}
 			break;
 	}
 	}
-- 
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