drawing 3 layer additive for I_cried

1 files changed, 17 insertions, 2 deletions

diff --git a/gui/src/chainImage.cpp b/gui/src/chainImage.cpp
index a6cde14..40e483a 100644
--- a/gui/src/chainImage.cpp
+++ b/gui/src/chainImage.cpp
@@ -479,9 +479,15 @@ void chainImage::drawChain(float fadeIn,bool additive,float intensity,float zoom
 		glScalef(getLinkScale(),getLinkScale(),getLinkScale());
 
 		//ofEnableAlphaBlending();
-		glEnable(GL_BLEND);
+		if (additive){
+			glBlendFunc(GL_SRC_ALPHA, GL_ONE);
+			ofSetColor(255,255,255,255);
+		}
+		else {
+			glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+			ofSetColor(255,255,255,255*min(1.0,transition/fadeIn)*intensity);
+		}
 		 
-		ofSetColor(255,255,255,255*min(1.0,transition/fadeIn)*intensity);
 		//setting alpha here doesn't work with shader?
 		//possibly if you could set the alpha when drawing?
 
@@ -497,6 +503,15 @@ void chainImage::drawChain(float fadeIn,bool additive,float intensity,float zoom
 		//link->setAlpha(transition);
 		link->draw(0,0,link->getWidth(),link->getHeight());
 
+		if (additive){
+			ofSetColor(255,255,255,255*min(1.0,transition/fadeIn)*intensity);
+			glTranslatef(link->getLinkPos().x,link->getLinkPos().y,0);
+			glRotatef(link->getLinkRot(),0,0,1);
+			glScalef(link->getLinkScale(),link->getLinkScale(),link->getLinkScale());
+			link->link->setAnchorPoint(link->link->getWidth()/2,link->link->getHeight()/2);
+			link->link->draw(0,0,link->link->getWidth(),link->link->getHeight());
+		}
+
 
 		glDisable(GL_BLEND);
 		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);