Emitting from texture

[jmo3000]

Again in PhoenixFD for Maya (2.2/2014). I thought emitting from the white areas of a texture was as simple as mapping the texture to the discharge map slot (dischargeMult)... but it doesnt appear to be working for me.

[Ivaylo Katev]

it should be really as simple as you supposed. no effect at all or not the desired one? can you post some images?

[jmo3000]

The source geometry continued to emit from the entire surface - same as before the texture was mapped. i initially tried an animated ramp and then switched to a checker to test... I think both are supported by Vray? I can send an example on Monday if that isnt enough information. thx!

[ivaylo.ivanov]

You can send a scene to the phoenix mail of course. In Maya you should watch for the "Alpha is Luminance" option.

[jmo3000]

I built a simple scene with a cube as the source and simply mapped a checker texture to the discharge map. I get the same result after mapping the texture as before, which is an evenly distributed emission. Are there any other steps besides mapping the texture? I think this has worked for me in the past.

thanks,
-j

[ivaylo.ivanov]

Here is an example with checker. Note that the black should be real black in order to have zero emission.

phx_discharge.zip

[jmo3000]

I dont appear to have permission to access the file...

"jmo3000, you do not have permission to access this page. This could be due to one of several reasons:
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I will try to upload a file in a bit

[jmo3000]

I also dont have permissions to attach files. Is this something I can fix?

[ivaylo.ivanov]

Write to the support at chaosgroup.com to give you access

[jmo3000]

you guys make this too difficult. And 1 response per day? takes too long to resolve any issues.

[Svetlin.Nikolov]

Hello! Our apologies, but if you have an urgent issue, the correct way of fast communication with the developers and proper file exchange is by contacting support@chaosgroup.com.