succesfully combined camera and FBO

2 files changed, 95 insertions, 0 deletions

diff --git a/src/mapUtils.cpp b/src/mapUtils.cpp
new file mode 100644
index 0000000..1023a40
--- /dev/null
+++ b/src/mapUtils.cpp
@@ -0,0 +1,79 @@
+/*
+ * mapUtils.h
+ *
+ *  Created by Tim Redfern on 20/12/2011.
+ *  global utils for projection mapping
+ *
+ */
+#pragma once
+
+#include "ofMain.h"
+
+void bindTexture(ofBaseHasTexture &t) {
+    ofTexture &tex = t.getTextureReference();
+    tex.bind();
+
+    glMatrixMode(GL_TEXTURE);
+    glPushMatrix();
+    glLoadIdentity();
+
+    ofTextureData texData = tex.getTextureData();
+    if(texData.textureTarget == GL_TEXTURE_RECTANGLE_ARB) {
+        glScalef(tex.getWidth(), tex.getHeight(), 1.0f);
+    } else {
+        glScalef(tex.getWidth() / texData.tex_w, tex.getHeight() / texData.tex_h, 1.0f);
+    }
+
+    glMatrixMode(GL_MODELVIEW);
+}
+void unbindTexture(ofBaseHasTexture &t) {
+    t.getTextureReference().unbind();
+
+    glMatrixMode(GL_TEXTURE);
+    glPopMatrix();
+    glMatrixMode(GL_MODELVIEW);
+}
+ofPoint distort(ofPoint pt,float d){
+    //normalised coords -1..1, d
+    float r=pow(pow(pow(pt.x,2.0f)+pow(pt.y,2.0f),0.5f),1.0f+d);
+    float a=atan2f(pt.x,pt.y);
+    return ofPoint(r*sin(a),r*cos(a));
+};
+
+void drawBox(float size) {
+    // this func just draws a perfectly normal box with some texture coordinates
+    glBegin(GL_QUADS);
+        // Front Face
+        glTexCoord2f(0.0f, 0.0f); glVertex3f(-size, -size,  size);	// Bottom Left Of The Texture and Quad
+        glTexCoord2f(1.0f, 0.0f); glVertex3f( size, -size,  size);	// Bottom Right Of The Texture and Quad
+        glTexCoord2f(1.0f, 1.0f); glVertex3f( size,  size,  size);	// Top Right Of The Texture and Quad
+        glTexCoord2f(0.0f, 1.0f); glVertex3f(-size,  size,  size);	// Top Left Of The Texture and Quad
+        // Back Face
+        glTexCoord2f(1.0f, 0.0f); glVertex3f(-size, -size, -size);	// Bottom Right Of The Texture and Quad
+        glTexCoord2f(1.0f, 1.0f); glVertex3f(-size,  size, -size);	// Top Right Of The Texture and Quad
+        glTexCoord2f(0.0f, 1.0f); glVertex3f( size,  size, -size);	// Top Left Of The Texture and Quad
+        glTexCoord2f(0.0f, 0.0f); glVertex3f( size, -size, -size);	// Bottom Left Of The Texture and Quad
+        // Top Face
+        glTexCoord2f(0.0f, 1.0f); glVertex3f(-size,  size, -size);	// Top Left Of The Texture and Quad
+        glTexCoord2f(0.0f, 0.0f); glVertex3f(-size,  size,  size);	// Bottom Left Of The Texture and Quad
+        glTexCoord2f(1.0f, 0.0f); glVertex3f( size,  size,  size);	// Bottom Right Of The Texture and Quad
+        glTexCoord2f(1.0f, 1.0f); glVertex3f( size,  size, -size);	// Top Right Of The Texture and Quad
+        // Bottom Face
+        glTexCoord2f(1.0f, 1.0f); glVertex3f(-size, -size, -size);	// Top Right Of The Texture and Quad
+        glTexCoord2f(0.0f, 1.0f); glVertex3f( size, -size, -size);	// Top Left Of The Texture and Quad
+        glTexCoord2f(0.0f, 0.0f); glVertex3f( size, -size,  size);	// Bottom Left Of The Texture and Quad
+        glTexCoord2f(1.0f, 0.0f); glVertex3f(-size, -size,  size);	// Bottom Right Of The Texture and Quad
+        // Right face
+        glTexCoord2f(1.0f, 0.0f); glVertex3f( size, -size, -size);	// Bottom Right Of The Texture and Quad
+        glTexCoord2f(1.0f, 1.0f); glVertex3f( size,  size, -size);	// Top Right Of The Texture and Quad
+        glTexCoord2f(0.0f, 1.0f); glVertex3f( size,  size,  size);	// Top Left Of The Texture and Quad
+        glTexCoord2f(0.0f, 0.0f); glVertex3f( size, -size,  size);	// Bottom Left Of The Texture and Quad
+        // Left Face
+        glTexCoord2f(0.0f, 0.0f); glVertex3f(-size, -size, -size);	// Bottom Left Of The Texture and Quad
+        glTexCoord2f(1.0f, 0.0f); glVertex3f(-size, -size,  size);	// Bottom Right Of The Texture and Quad
+        glTexCoord2f(1.0f, 1.0f); glVertex3f(-size,  size,  size);	// Top Right Of The Texture and Quad
+        glTexCoord2f(0.0f, 1.0f); glVertex3f(-size,  size, -size);	// Top Left Of The Texture and Quad
+    glEnd();
+}
+
+
diff --git a/src/mapUtils.h b/src/mapUtils.h
new file mode 100644
index 0000000..002f90a
--- /dev/null
+++ b/src/mapUtils.h
@@ -0,0 +1,16 @@
+/*
+ * mapUtils.h
+ *
+ *  Created by Tim Redfern on 20/12/2011.
+ *  global utils for projection mapping
+ *
+ */
+#pragma once
+
+#include "ofMain.h"
+
+void bindTexture(ofBaseHasTexture &t);
+void unbindTexture(ofBaseHasTexture &t);
+ofPoint distort(ofPoint pt,float d);
+void drawBox(float size);
+