Merge pull request #3 from smallfly/feature-programmable_renderer

Support for programmable renderer

.gitignore

@@ -0,0 +1,32 @@
+# don't push project files
+*.cbp
+*.sln
+*.vcx*
+*.workspace*
+config.make
+Makefile
+*.xcodeproj
+*.plist
+*.xcconfig
+*.suo
+
+*.depend
+*.layout
+*.mode*v3
+*.pbxuser
+*.app*
+*.DS_*
+*.xcworkspacedata
+xcuserdata/
+project.xcworkspace
+
+*.opensdf
+*.sdf
+*.suo
+*.ipch
+
+.svn/
+obj/
+bin/
+build/
+!data/

example-with-ofxGui/src/main.cpp

@@ -3,11 +3,10 @@
 
 //========================================================================
 int main( ){
-	ofSetupOpenGL(1024,768,OF_WINDOW);			// <-------- setup the GL context
-
-	// this kicks off the running of my app
-	// can be OF_WINDOW or OF_FULLSCREEN
-	// pass in width and height too:
-	ofRunApp(new ofApp());
-
+    ofGLWindowSettings settings;
+    settings.setGLVersion(3, 2); // Using programmable renderer. Comment out this line to use the 'standard' GL renderer.
+    settings.width = 1024;
+    settings.height = 768;
+    ofCreateWindow(settings);
+    ofRunApp(new ofApp());
 }

example-with-ofxGui/src/ofApp.cpp

@@ -93,14 +93,28 @@ void ofApp::drawDebugMasks() {
 
 //--------------------------------------------------------------
 void ofApp::drawCheckerboard(float x, float y, int width, int height, int size) {
-	int numWidth = width/size;
-	int numHeight = height/size;
-	for(int h=0; h<numHeight; h++) {
-		for(int w=0; w<numWidth; w++) {
-			((h+w)%2 == 0) ? ofSetColor(0, 255) : ofSetColor(255, 255);
-			ofRect(x + w*size, y + h*size, size, size);
-		}
-	}
+    if (!checkerboardTex.isAllocated()) {
+        checkerboardTex.allocate(width, height);
+
+        ofPushStyle();
+        checkerboardTex.begin();
+        ofClear(255, 255, 255, 255);
+        int numWidth = width/size;
+        int numHeight = height/size;
+        for(int h=0; h<numHeight; h++) {
+            for(int w=0; w<numWidth; w++) {
+                if ((h+w)%2 == 0) {
+                    ofSetColor(ofColor::black);
+                    ofDrawRectangle(w*size, h*size, size, size);
+                }
+            }
+        }
+        checkerboardTex.end();
+        ofPopStyle();
+    }
+
+    ofSetColor(255, 255);
+    checkerboardTex.draw(x, y);
 }
 
 //--------------------------------------------------------------

example-with-ofxGui/src/ofApp.h

@@ -32,6 +32,8 @@ class ofApp : public ofBaseApp{
 	ofxChromaKeyShader *chromakey;
 	ofVideoGrabber webcam;
 	int camW, camH;
+
+    ofFbo checkerboardTex;
 
 	ofxPanel chromaGui;
 	bool bShowGui;