Using nuke I comped together the footage with the effect from Houdini.
I used a tracker to remove the jitter from the video. Colour corrected the fire to try and make it look more like it belongs in the scene,
The add mix helps the fire to blend into the scene.
Standard over merge:
Add mix node2
Rendered result:
I’m dissapointed that the rendering of the effect was so poor.
I think that with a better render of the pyro, the shot what look more effective.
I am however happy with the way that fire emits from the actors hands, and thanks to the motion capture, follows his movements well.
A follow on step from here would be to create parts of the scene in Houdini, such as the ground, to allow for reflections. As well as showing specular reflections on the actors.