Materials with OpenGL and Oculus Rift SDK with F.Buffers .

Have you checked the GL error state? It's possible the new material code is causing an error that doesn't break anything but the Rift distortion code. I would recommend running your app with gDEBugger or apitrace and telling them to break/report on any error. You can also call glGetError() after each GL call.

One thing that jumps out is the internal format of your texture. Should glTexImage2D(..) be referencing iInternalFormat instead of GL_RGB in the following code?

"ckoeber" wrote:
      glGenTextures(1, &TextureObject_ID);   // section being edited by CKoeber to pull in material files
      glBindTexture(GL_TEXTURE_2D, TextureObject_ID);
      setFiltering(TEXTURE_FILTER_MAG_BILINEAR, TEXTURE_FILTER_MIN_BILINEAR_MIPMAP);
      GLsizei iFormat = BytesPerPixel == 24 ? GL_BGR : BytesPerPixel == 8 ? GL_LUMINANCE : 0;
      GLsizei iInternalFormat = BytesPerPixel == 24 ? GL_RGB : GL_DEPTH_COMPONENT;
      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB,
                   WidthOfTexture, HeightOfTexture, 0, iFormat,
                   GL_UNSIGNED_BYTE, bytesDataPointer);
      glGenerateMipmap(GL_TEXTURE_2D);
      FreeImage_Unload(loadedImage);
      glGenSamplers(1, &TextureSamplerObject_ID);