fix double-registered embedded texture :(

ensure emissive maps are loaded as sRGB; display sRGB state

add option to load/save mesh configs

alleviate some of the alpha problems by discarding pixels with zero-i…

…sh alpha

try and get the highest refresh rates

add option to toggle fullscreen/windowed during runtime

add more transparency handling by rendering backfaces first and front…

…faces next

change transparency to be normal blend; consider diffuse alpha for tr…

…ansparency decision

add support for embedded textures served as pixels

add support for embedded textures