illuminate environment (like overwriteMaterial)

Maxon Cinema 4D (Export script developed by abstrax, Integrated Plugin developed by aoktar)

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Benberg
Licensed Customer
Posts: 5
Joined: Thu Nov 02, 2017 2:22 pm

Hi there,

I have an emission-scene with a TV-texture.
The TV-texture should stay as it is (from the brightness on the Screen) but i want to raise the illumination of the environment from that texture.
In Vray there is a way with overwriteMaterial. There you could increase the reflection, illumination, etc.
Is there a way in Octane how you can achieve that way?
Thanks for your help.

[attachment=0]LED_Illumination.zip[/attachment]
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bepeg4d
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Hi Benberg,
first of all, always use any kind of bitmap inside an ImageTexture node in c4doctane:
3222F62F-A7B4-4550-80C0-06D8990F34B9.jpeg
CFF0A201-68FD-48C0-B0EA-DC9A72F74CF2.jpeg
Probably I have not correctly understood your need, but it is not possible for you to animate the power of the Environment Texture node?
40F71EFC-9003-4B89-BECB-4197B778DCA3.jpeg
75E7D499-B9DE-4AE4-A647-09EA4FB0F477.jpeg
ciao beppe
Benberg
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Posts: 5
Joined: Thu Nov 02, 2017 2:22 pm

Hi Beppe,
thanks for your reply.
You are right withe the image-texture, i forgot - thanks.

Hopefully with my new attachement you better understand my questions.

An example: I do have an automobile-press-conference-scene with the latest car in the focus. Behind the car there is a big LED-Wall. The scene is completly black except of a few spots and the illuminated LED-Wall.
The content of the LED-Wall (still or sequence) can be changed and the environment (car, floor, sphere) adapts on my content. So far so good.
My aim is to control the illumination of my environment (make it f.e. stronger) but the content of the LED-Wall should stay as it is (brightness).
Of course I can turn on the power of the emission but then the content is too overbrighten.

I hope now its better to understand.
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02.jpg
niestudio
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Joined: Fri Aug 21, 2015 10:03 pm

I think he is asking that the TV visually stays the same (power 3), but the rest of the scene looks as if it's at power 10.
Might not be the most elegant, but could put another plane right in front of the tv with a new texture (using the same image). Set it's power up to 10 (or wherever you need it), but disable the camera visibility in the octane tag?
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LED_Illumination_c4d___-_Basis.jpg
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bepeg4d
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Ok, now I have understand, yes correct, one invisible emitter for lighting, and another one visible for the rendered light is always the best solution.
ciao beppe
Benberg
Licensed Customer
Posts: 5
Joined: Thu Nov 02, 2017 2:22 pm

Hi beppe and niestudio,
thats the way I was looking for - thank you.
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