another play with nodes today. I was looking at images of the Darvaza Gas Crater, near Turkmenistan (I was looking for info on a film called Doorway to Hell and that came up) Been trying to create a lava like shader (not the easiest, for the way I wanted to look) I made a crater shader then masked the area with a simple shape shader into a surface shader. for the swirl pattern I used the cloud fractal as a mask. to increase the illumination (it just wasn't working for me I added a spot light into the crater)
This is my first pass, had to do a bit in photoshop to emphasise the glow
