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Mantra not rendering fire

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SideUser
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Hi, I simulated an explosion from fireball preset with disabled smoke to render just fire but mantra keeps rendering black frames.I tried to setup everything like it is in smoleless flame but no success.I think I forgot to do something because fire look different in viewport while simulating smokeless flame.Please help.Thanks.
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HenrikGieselmann
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Hey,
just to make sure:
Did you turn of smke emitting during simulation, because that wont work…

If you did simulate with smoke on:
Which Shader are you using?
On the Pyro2 there is a match Viewport Button in on of the later tabs.

Otherwise, please add a file.
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Quasari
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Tried both but it will render only with smoke.Also how can I check which shader Im using?Where exactly can I find the button you are talking about?
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HenrikGieselmann
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You can find the Shader in the SHOP Net.
If it is the Pyro Shader, which it should be default, it may be called “fireball”

In the Utils Tab There you can apply transfers from Visualization to Pyro.
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Quasari
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Yes there is a shader called fireball.Here is the file.Just turn off smoke so I can render fire alone and tell me what you did.I didnt even started learning houdini shader network so I dont know what to do.Thanks.

Attachments:
explo.hip (896.2 KB)

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HenrikGieselmann
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Took a look.

So yeah, something is off with your fireball shader.
Just create a new one and add it to the explosion. This will render fine
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sidenimjay
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I am able to render the fire only in your scene, if I set the Smoke Field/Final Scale to 0

using H15.0.313

Attachments:
explo_152_fire_only.hip (875.7 KB)

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Quasari
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Ok I just selected the smokeless flame preset in the fireball shader and its working now.Thank you all for replies.
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Quasari
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I have another little problem.When I edit smoke or fire shader, render it and open in photoshop it looks different.I want it to look exactly as in Render View.Do I need to change something in houdini settings?I dont want to edit in photoshop.

Image here: http://i.imgur.com/AVj0KlU.png [i.imgur.com]
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sidenimjay
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most likely it is due to the colorspace

when you look at it in mplay, a gamma of 2.2 is being applied.

this is not baked into the render, unless you set

Images/Output/Gamma to 2.2

on the rop

it may look overbright if you open it in mplay as it would likely put the gamma on as well..so you would set the mplay gamma to 1 when viewing the resulting render
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