8:30 – 5:30 FP

• Getting DrawableObject and subclasses to work
• No, working on formatting my resume for Jesse. This literally took 3 1/2 hours. I guess I’ll start after lunch
• More reasons not to use Flash any more.
• Stacking matrices are working just fine 🙂
• 

8:30 – 5:00 FP

• Working on how to chain matrices.
• Old-school:

• glRotatef(eyeOrient[0], 1, 0, 0);
  glRotatef(eyeOrient[2], 0, 1, 0);
  glTranslatef(eyePos[0], eyePos[1], eyePos[2]);
  
  // global world transformations
  glTranslatef(worldPos[0], worldPos[1], worldPos[2]);
  
  glRotatef(worldOrient[0], 1, 0, 0);
  glRotatef(worldOrient[1], 0, 1, 0);

• And How it’s done now:

• m3dLoadIdentity44(workingMatrix);
  m3dLoadIdentity44(worldMat);
  m3dLoadIdentity44(eyeMat);
  m3dLoadIdentity44(tmat);
  m3dLoadIdentity44(rmat1);
  m3dLoadIdentity44(rmat2);
  
  // handle eyepoint transformations
  m3dRotationMatrix44(rmat1, eyeOrient[0], 1, 0, 0);
  m3dRotationMatrix44(rmat2, eyeOrient[2], 0, 1, 0);
  m3dTranslationMatrix44(tmat, eyePos[0], eyePos[1], eyePos[2]);
  
  m3dMatrixMultiply44(eyeMat, rmat2, eyeMat);
  m3dMatrixMultiply44(eyeMat, rmat1, eyeMat);
  m3dMatrixMultiply44(eyeMat, tmat, eyeMat);
  
  // handle global world transformations
  m3dTranslationMatrix44(tmat, worldPos[0], worldPos[1], worldPos[2]);
  m3dRotationMatrix44(rmat1, worldOrient[0], 1, 0, 0);
  m3dRotationMatrix44(rmat2, worldOrient[1], 0, 1, 0);
  m3dMatrixMultiply44(worldMat, rmat1, rmat2);
  m3dMatrixMultiply44(worldMat, tmat, worldMat);
  
  // combine the eye and eorld xforms
  m3dMatrixMultiply44(workingMatrix, eyeMat, worldMat);

• Isn’t that better?
• Ok, cleaned things up a bit, and now I’ve got something I can live with:

• // global eye transformations
  modelViewMatrix.Rotate(eyeOrient[0], 1, 0, 0);
  modelViewMatrix.Rotate(eyeOrient[2], 0, 1, 0);
  modelViewMatrix.Translate(eyePos[0], eyePos[1], eyePos[2]);
  
  // global world transformations
  modelViewMatrix.Translate(worldPos[0], worldPos[1], worldPos[2]);
  
  modelViewMatrix.Rotate(worldOrient[0], 1, 0, 0);
  modelViewMatrix.Rotate(worldOrient[1], 0, 1, 0);

• Putting the stage and other bits in

8:30 – 5:30 FP

• Hey, it’s my 2 month anniversary of my broken leg. On the whole, progress has been pretty good.
• Working out how to put all the matrix pieces of a shader system together.
• After flailing for pretty much most of the day, I discovered that I had set up the view frustum incorrectly, due to a typo. Most things work, but the viewframe isn’t reset ti identity each time through. I need to revisit how to set that up.
• This was the hint that clued me in, BTW. Yuck.
• 

8:00 – FP

• Built openGl frame for shader code in Fluid and got it compiling and running.
• Dprint currently works. I wonder if this will kill it…
• Got the whole thing working in FLTK. Behold, the Red Triangle of Progress!
• 

8:30 – 4:30 FP

• Starting the OpenGl SuperBible 5th Edition, which covers OpenGl 3.0+
• Hmm. Can’t check out code from svn http://oglsuperbible5.googlecode.com/svn/trunk/
• Here’s the useful SVN fix of the week: “SVN uses a few HTTP commands that not every web proxy and/or firewall understands, which can lead to errors. There is one thing that might fix this for you, and that is to use HTTPS instead of HTTP, because then the 
  connection is encrypted and any proxy/firewall in between can’t mess with the content. I checked, and the server provides HTTPS access, although that is not necessarily always the case. “
• Ok, after some heroic struggling with getting libraries to behave and dealing with static declarations, I can now draw a simple triangle. I’m going to try to do the same in FLTK now, since I’d like to get away from static libraries…
• Got a basic Shader Window framework compiled. Will test tomorrow.