Added default texture automatic generation

example/src/ofApp.cpp

@@ -6,7 +6,7 @@ void ofApp::setup()
     image.loadImage("TestPatternInvert.jpg");
     
     // Create a triangle surface
-    triangleSurface.setup( ofVec2f(30,40), ofVec2f(500,500), ofVec2f(0,600), ofVec2f(0,0), ofVec2f(1,1), ofVec2f(0,1), &image.getTextureReference() );
+    //triangleSurface.setup( ofVec2f(30,40), ofVec2f(500,500), ofVec2f(0,600), ofVec2f(0,0), ofVec2f(1,1), ofVec2f(0,1), &image.getTextureReference() );
 }
 
 void ofApp::update()

src/ofxBaseSurface.cpp

@@ -3,4 +3,37 @@
 ofxBaseSurface::ofxBaseSurface()
 {
     ofEnableNormalizedTexCoords();
+    createDefaultTexture();
+}
+
+void ofxBaseSurface::createDefaultTexture()
+{
+    ofPixels pixels;
+    pixels.allocate(500, 500, 1);
+    for ( int i=0; i<pixels.size(); i++ ) {
+        pixels[i] = 255;
+    }
+    int squareSize = 10; // size of each test pattern square
+    bool sy = false;
+    for ( int y=0; y<pixels.getWidth(); y+=squareSize ) {
+        bool sx = false;
+        for ( int x=0; x<pixels.getHeight(); x+=squareSize ) {
+            for ( int yi=0; yi<squareSize; yi++ ) {
+                for ( int xi=0; xi<squareSize; xi++ ){
+                    if ( sx && sy ) pixels[(y+yi)*pixels.getWidth()+x+xi] = 255;
+                    else if ( sx && !sy ) pixels[(y+yi)*pixels.getWidth()+x+xi] = 0;
+                    else if ( !sx && sy ) pixels[(y+yi)*pixels.getWidth()+x+xi] = 0;
+                    else pixels[(y+yi)*pixels.getWidth()+x+xi] = 255;
+                }
+            }
+            sx = !sx;
+        }
+        sy = !sy;
+    }
+    
+    // load pixels into texture
+    defaultTexture.loadData(pixels);
+    
+    // Assign default texture to texture pointer
+    texture = &defaultTexture;
 }

src/ofxBaseSurface.h

@@ -13,6 +13,9 @@ public:
 protected:
     ofMesh mesh;
     ofTexture* texture;
+    ofTexture defaultTexture;
+    
+    void createDefaultTexture();
 };
 
 #endif