8 files changed, 365 insertions, 0 deletions
diff --git a/keyshade/Makefile b/keyshade/Makefile
new file mode 100644
index 0000000..177e172
--- /dev/null
+++ b/keyshade/Makefile
@@ -0,0 +1,13 @@
+# Attempt to load a config.make file.
+# If none is found, project defaults in config.project.make will be used.
+ifneq ($(wildcard config.make),)
+	include config.make
+endif
+
+# make sure the the OF_ROOT location is defined
+ifndef OF_ROOT
+	OF_ROOT=$(realpath ../../..)
+endif
+
+# call the project makefile!
+include $(OF_ROOT)/libs/openFrameworksCompiled/project/makefileCommon/compile.project.mk
diff --git a/keyshade/bin/data/shader.frag b/keyshade/bin/data/shader.frag
new file mode 100644
index 0000000..7dbf468
--- /dev/null
+++ b/keyshade/bin/data/shader.frag
@@ -0,0 +1,38 @@
+#version 150
+
+uniform vec4 keyColour;
+uniform float keyMinDist;
+uniform float keyMaxDist;
+
+// these are our textures
+uniform sampler2DRect backgroundTex;
+uniform sampler2DRect foregroundTex;
+
+// this comes from the vertex shader
+in vec2 texCoordVarying;
+
+
+
+// this is the output of the fragment shader
+out vec4 outputColor;
+
+void main()
+{
+	// Get color values from the background and foreground
+	vec4 back = texture(backgroundTex, texCoordVarying);
+	vec4 fore = texture(foregroundTex, texCoordVarying);
+
+    // get alpha from mask
+    float mask = texture(backgroundTex, texCoordVarying).r;
+
+    vec4 delta = back - keyColour;
+  	float distance2 = dot( delta, delta );
+  	float weight = clamp( (distance2 - keyMinDist) / (keyMaxDist - keyMinDist) ,0.0,1.0);
+
+  	//float4 transparent = IN.color;
+  	//transparent.w = 0;
+  	//OUT.color = lerp( transparent, IN.color, weight );
+	
+	//mix colors from background and foreground based on the mask value
+    outputColor = mix(fore , back, weight);
+}
diff --git a/keyshade/bin/data/shader.vert b/keyshade/bin/data/shader.vert
new file mode 100644
index 0000000..0e63995
--- /dev/null
+++ b/keyshade/bin/data/shader.vert
@@ -0,0 +1,16 @@
+#version 150
+
+// these come from the programmable pipeline
+uniform mat4 modelViewProjectionMatrix;
+
+in vec4 position;
+in vec2 texcoord;
+
+// texture coordinates are sent to fragment shader
+out vec2 texCoordVarying;
+
+void main()
+{
+    texCoordVarying = texcoord;
+    gl_Position = modelViewProjectionMatrix * position;
+}
+\ No newline at end of file
diff --git a/keyshade/config.make b/keyshade/config.make
new file mode 100644
index 0000000..469c495
--- /dev/null
+++ b/keyshade/config.make
@@ -0,0 +1,142 @@
+################################################################################
+# CONFIGURE PROJECT MAKEFILE (optional)
+#   This file is where we make project specific configurations.
+################################################################################
+
+################################################################################
+# OF ROOT
+#   The location of your root openFrameworks installation
+#       (default) OF_ROOT = ../../.. 
+################################################################################
+ OF_ROOT = ../../openFrameworks
+
+################################################################################
+# PROJECT ROOT
+#   The location of the project - a starting place for searching for files
+#       (default) PROJECT_ROOT = . (this directory)
+#    
+################################################################################
+# PROJECT_ROOT = .
+
+################################################################################
+# PROJECT SPECIFIC CHECKS
+#   This is a project defined section to create internal makefile flags to 
+#   conditionally enable or disable the addition of various features within 
+#   this makefile.  For instance, if you want to make changes based on whether
+#   GTK is installed, one might test that here and create a variable to check. 
+################################################################################
+# None
+
+################################################################################
+# PROJECT EXTERNAL SOURCE PATHS
+#   These are fully qualified paths that are not within the PROJECT_ROOT folder.
+#   Like source folders in the PROJECT_ROOT, these paths are subject to 
+#   exlclusion via the PROJECT_EXLCUSIONS list.
+#
+#     (default) PROJECT_EXTERNAL_SOURCE_PATHS = (blank) 
+#
+#   Note: Leave a leading space when adding list items with the += operator
+################################################################################
+# PROJECT_EXTERNAL_SOURCE_PATHS = 
+
+################################################################################
+# PROJECT EXCLUSIONS
+#   These makefiles assume that all folders in your current project directory 
+#   and any listed in the PROJECT_EXTERNAL_SOURCH_PATHS are are valid locations
+#   to look for source code. The any folders or files that match any of the 
+#   items in the PROJECT_EXCLUSIONS list below will be ignored.
+#
+#   Each item in the PROJECT_EXCLUSIONS list will be treated as a complete 
+#   string unless teh user adds a wildcard (%) operator to match subdirectories.
+#   GNU make only allows one wildcard for matching.  The second wildcard (%) is
+#   treated literally.
+#
+#      (default) PROJECT_EXCLUSIONS = (blank)
+#
+#		Will automatically exclude the following:
+#
+#			$(PROJECT_ROOT)/bin%
+#			$(PROJECT_ROOT)/obj%
+#			$(PROJECT_ROOT)/%.xcodeproj
+#
+#   Note: Leave a leading space when adding list items with the += operator
+################################################################################
+# PROJECT_EXCLUSIONS =
+
+################################################################################
+# PROJECT LINKER FLAGS
+#	These flags will be sent to the linker when compiling the executable.
+#
+#		(default) PROJECT_LDFLAGS = -Wl,-rpath=./libs
+#
+#   Note: Leave a leading space when adding list items with the += operator
+################################################################################
+
+# Currently, shared libraries that are needed are copied to the 
+# $(PROJECT_ROOT)/bin/libs directory.  The following LDFLAGS tell the linker to
+# add a runtime path to search for those shared libraries, since they aren't 
+# incorporated directly into the final executable application binary.
+# TODO: should this be a default setting?
+# PROJECT_LDFLAGS=-Wl,-rpath=./libs
+
+################################################################################
+# PROJECT DEFINES
+#   Create a space-delimited list of DEFINES. The list will be converted into 
+#   CFLAGS with the "-D" flag later in the makefile.
+#
+#		(default) PROJECT_DEFINES = (blank)
+#
+#   Note: Leave a leading space when adding list items with the += operator
+################################################################################
+# PROJECT_DEFINES = 
+
+################################################################################
+# PROJECT CFLAGS
+#   This is a list of fully qualified CFLAGS required when compiling for this 
+#   project.  These CFLAGS will be used IN ADDITION TO the PLATFORM_CFLAGS 
+#   defined in your platform specific core configuration files. These flags are
+#   presented to the compiler BEFORE the PROJECT_OPTIMIZATION_CFLAGS below. 
+#
+#		(default) PROJECT_CFLAGS = (blank)
+#
+#   Note: Before adding PROJECT_CFLAGS, note that the PLATFORM_CFLAGS defined in 
+#   your platform specific configuration file will be applied by default and 
+#   further flags here may not be needed.
+#
+#   Note: Leave a leading space when adding list items with the += operator
+################################################################################
+# PROJECT_CFLAGS = 
+
+################################################################################
+# PROJECT OPTIMIZATION CFLAGS
+#   These are lists of CFLAGS that are target-specific.  While any flags could 
+#   be conditionally added, they are usually limited to optimization flags. 
+#   These flags are added BEFORE the PROJECT_CFLAGS.
+#
+#   PROJECT_OPTIMIZATION_CFLAGS_RELEASE flags are only applied to RELEASE targets.
+#
+#		(default) PROJECT_OPTIMIZATION_CFLAGS_RELEASE = (blank)
+#
+#   PROJECT_OPTIMIZATION_CFLAGS_DEBUG flags are only applied to DEBUG targets.
+#
+#		(default) PROJECT_OPTIMIZATION_CFLAGS_DEBUG = (blank)
+#
+#   Note: Before adding PROJECT_OPTIMIZATION_CFLAGS, please note that the 
+#   PLATFORM_OPTIMIZATION_CFLAGS defined in your platform specific configuration 
+#   file will be applied by default and further optimization flags here may not 
+#   be needed.
+#
+#   Note: Leave a leading space when adding list items with the += operator
+################################################################################
+# PROJECT_OPTIMIZATION_CFLAGS_RELEASE = 
+# PROJECT_OPTIMIZATION_CFLAGS_DEBUG = 
+
+################################################################################
+# PROJECT COMPILERS
+#   Custom compilers can be set for CC and CXX
+#		(default) PROJECT_CXX = (blank)
+#		(default) PROJECT_CC = (blank)
+#   Note: Leave a leading space when adding list items with the += operator
+################################################################################
+# PROJECT_CXX = 
+# PROJECT_CC = 
diff --git a/keyshade/src/addons.make b/keyshade/src/addons.make
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/keyshade/src/addons.make
diff --git a/keyshade/src/main.cpp b/keyshade/src/main.cpp
new file mode 100644
index 0000000..6136697
--- /dev/null
+++ b/keyshade/src/main.cpp
@@ -0,0 +1,15 @@
+#include "ofMain.h"
+#include "ofApp.h"
+
+//========================================================================
+int main( ){
+	
+	ofGLWindowSettings settings;
+	settings.setGLVersion(3,2);
+	ofCreateWindow(settings);
+	// this kicks off the running of my app
+	// can be OF_WINDOW or OF_FULLSCREEN
+	// pass in width and height too:
+	ofRunApp(new ofApp());
+
+}
diff --git a/keyshade/src/ofApp.cpp b/keyshade/src/ofApp.cpp
new file mode 100644
index 0000000..9adae87
--- /dev/null
+++ b/keyshade/src/ofApp.cpp
@@ -0,0 +1,102 @@
+#include "ofApp.h"
+
+//--------------------------------------------------------------
+void ofApp::setup(){
+	shader.load("shader");
+	backgroundImage.load("../../../gui/bin/data/funfair/IMG_2893.JPG");
+    foregroundImage.load("../../../gui/bin/data/funfair/IMG_2894.JPG");
+    
+    maskFbo.allocate(ofGetWidth(), ofGetHeight());
+
+    // Clear the FBO's
+    // otherwise it will bring some junk with it from the memory
+    maskFbo.begin();
+    ofClear(0,0,0,255);
+    maskFbo.end();
+
+    keyMinDist=0.2f;
+    keyMaxDist=0.3f;
+    keyColour=ofColor(200,40,0);
+}
+
+//--------------------------------------------------------------
+void ofApp::update(){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::draw(){
+
+	ofSetColor(255);
+
+	//better to scale first then mask, or visa versa?
+
+    shader.begin();
+    shader.setUniform4f("keyColour",keyColour);
+    shader.setUniform1f("keyMinDist",keyMinDist);
+    shader.setUniform4f("keyMaxDist",keyMaxDist);
+    shader.setUniformTexture("backgroundTex", backgroundImage.getTexture(), 1 );
+    shader.setUniformTexture("foregroundTex", foregroundImage.getTexture(), 2 );
+
+	backgroundImage.draw(0, 0,ofGetWidth(),ofGetHeight());
+
+	shader.end();
+}
+
+//--------------------------------------------------------------
+void ofApp::keyPressed(int key){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::keyReleased(int key){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::mouseMoved(int x, int y ){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::mouseDragged(int x, int y, int button){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::mousePressed(int x, int y, int button){
+	keyColour = backgroundImage.getColor(
+		x*(backgroundImage.getWidth()/ofGetWidth()),
+		y*(backgroundImage.getHeight()/ofGetHeight())
+		);
+}
+
+//--------------------------------------------------------------
+void ofApp::mouseReleased(int x, int y, int button){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::mouseEntered(int x, int y){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::mouseExited(int x, int y){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::windowResized(int w, int h){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::gotMessage(ofMessage msg){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::dragEvent(ofDragInfo dragInfo){ 
+
+}
diff --git a/keyshade/src/ofApp.h b/keyshade/src/ofApp.h
new file mode 100644
index 0000000..8774291
--- /dev/null
+++ b/keyshade/src/ofApp.h
@@ -0,0 +1,39 @@
+#pragma once
+
+#include "ofMain.h"
+
+/*
+click on the image to choose a colour (maybe draw a line or outline a range of colours?)
+
+*/
+
+class ofApp : public ofBaseApp{
+
+	public:
+		void setup();
+		void update();
+		void draw();
+
+		void keyPressed(int key);
+		void keyReleased(int key);
+		void mouseMoved(int x, int y );
+		void mouseDragged(int x, int y, int button);
+		void mousePressed(int x, int y, int button);
+		void mouseReleased(int x, int y, int button);
+		void mouseEntered(int x, int y);
+		void mouseExited(int x, int y);
+		void windowResized(int w, int h);
+		void dragEvent(ofDragInfo dragInfo);
+		void gotMessage(ofMessage msg);
+		
+		ofShader shader;
+    
+	    ofImage backgroundImage;
+	    ofImage foregroundImage;
+	    
+	    ofFbo maskFbo;
+
+	    ofColor keyColour;
+	    float keyMinDist;
+	    float keyMaxDist;
+};