Hi,

I am rendering a pyro sim but when i am rendering to disc only the jpg rendering gives me the same results as my rendering in render view..but i need the alpha channel too -> here are the screenshots -> comparison between png and jpg
looks like rendering without material

PNG stores its output as unpremultiplied Color and Alpha. When loaded back into Houdini, it converts PNGs to the native premultiplied Color/Alpha, unless you specifically turn this off. Because fire is mostly emissive this massively dims the color channels. In the File COP, change the “Premultiply” to “Leave Unpremultiplied” and you'll get the correct result.

Learned something! thank you very much!