Hey VRayers,
I wrote a great script the other day and wanted to share it. I hope you love it like I do.
It's called Tweaker. It allows you to tweak almost any property on an object, an object's material, an object's modifiers, any map, and renderer settings and it will render out a sequence of images for the settings you choose.
For instance, I have a 3d ZBrush head that I'm finishing up and I just can't nail down the glossiness value for good looking skin. Load up tweaker, select "Pick Object" and select the head. Under the "Material Properties" select the VRaySSS2 material's "specular_glossiness". Set the spinner "From" to maybe like .3, and "To" to .9 and by ".05" and hit render, select the directory to save the images to and check them out when they're done!
Ok, ok, now let's say I have a VRayHDRI map that's lighting my scene and I want to find the best horizontal rotation for a shot. Easy. Run Tweaker, click "Pick Map" and select the HDRI that is lighting your scene. Double click on "Horizontal_Rotation" (or whatever it's called) and set from to 0, and to to 360, and by 25. And you'll get renders every 25 degress of the HDRI.
Ever wonder exactly what the difference was between a noise threshold set to 0.01 and 0.005 and everything in between? No problem.
The script is located on my site under the top heading "Scripts", I would post it here, but it'll be too hard to maintain the most current version on multiple sites.
Use it and enjoy it, let me know your experiences with it.
Features:
- All frames are frame stamped with the corresponding changing value and the current value of it
- All filenames are saved with the corresponding changing value and the value it is set to in the render
- Allows you to edit almost any property and displays the result (modifiers, materials, render settings, etc)
Known Problem:
- Renders come out too dark if using VRay Frame Buffer and some mix of LWF. To fix just disable VRay Frame Buffer.

-Colin
I wrote a great script the other day and wanted to share it. I hope you love it like I do.
It's called Tweaker. It allows you to tweak almost any property on an object, an object's material, an object's modifiers, any map, and renderer settings and it will render out a sequence of images for the settings you choose.
For instance, I have a 3d ZBrush head that I'm finishing up and I just can't nail down the glossiness value for good looking skin. Load up tweaker, select "Pick Object" and select the head. Under the "Material Properties" select the VRaySSS2 material's "specular_glossiness". Set the spinner "From" to maybe like .3, and "To" to .9 and by ".05" and hit render, select the directory to save the images to and check them out when they're done!
Ok, ok, now let's say I have a VRayHDRI map that's lighting my scene and I want to find the best horizontal rotation for a shot. Easy. Run Tweaker, click "Pick Map" and select the HDRI that is lighting your scene. Double click on "Horizontal_Rotation" (or whatever it's called) and set from to 0, and to to 360, and by 25. And you'll get renders every 25 degress of the HDRI.
Ever wonder exactly what the difference was between a noise threshold set to 0.01 and 0.005 and everything in between? No problem.
The script is located on my site under the top heading "Scripts", I would post it here, but it'll be too hard to maintain the most current version on multiple sites.
Use it and enjoy it, let me know your experiences with it.
Features:
- All frames are frame stamped with the corresponding changing value and the current value of it
- All filenames are saved with the corresponding changing value and the value it is set to in the render
- Allows you to edit almost any property and displays the result (modifiers, materials, render settings, etc)
Known Problem:
- Renders come out too dark if using VRay Frame Buffer and some mix of LWF. To fix just disable VRay Frame Buffer.
-Colin
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