Script request: change light intensity through a script

[Rikk The Gaijin]

Hi, I would like to being able to change the intensity of my HDR texture through a script, for example:
frame 1245 --> intensity 1.00
frame 1259 --> intensity 0.30

Is it possible?

Thank you

[Rikk The Gaijin]

Anyone?

[grimm]

Yes, I think it could be done. It would probably be best to modify Roeland's animation render script and add this functionality to it.

Jason

[grimm]

Hey Rikk,

Try this out and see if it works for you. You need to have a texture environment node connect to the render target and have the target selected for it to work. Let me know if you have any problems.

Jason

Animation_with_hdri_intensity.lua

(19.86 KiB) Downloaded 292 times

[Tugpsx]

Thanks, this should come in handy. Maybe you could add an option to add the texture Environment if a node does not exist and connect it to the render target.

Code: Select all

local settings =
{
["renderTargets"]   = octane.project.getSceneGraph():findNodes(octane.NT_RENDERTARGET),
}
-- no render targets available -> error out
if #settings.renderTargets == 0 then
    error("no render targets to render in project:", projectPath)
else

-- create a texture environment node
texNode = octane.node.create{ type=octane.NT_ENV_TEXTURE, name="HDRI intensity" }

-- evaluate the texture node
texNode:evaluate()

[Rikk The Gaijin]

Hey grimm, this looks sweet! But I would like to see the result before start rendering, the script Roeland made changed the scene so I could see the result by just moving the marker on the animation bar, can you do that?

[grimm]

Thanks Tugpsx,

That would be a good addition.

Rikk,

Ah, I see, so you need the script to modify the animation and then get out of the way? I will look into it.

Jason

[Rikk The Gaijin]

Thanks Tugpsx,

That would be a good addition.

Rikk,

Ah, I see, so you need the script to modify the animation and then get out of the way? I will look into it.

Jason

Thank you, I really appreciate it.

[grimm]

Hi Rikk,

Ok, here is a really rough script that should work. As always let me know if you have any problems with it. You need to have a texture environment node with a float value node connected to the power input pin. The script needs a lot of work still to make it easier to use and more reliable. Right now the start and end time is in frame numbers. When you set the start and end values for the power, every frame before the start will have the same power as the start value, and every frame after the end will equal the end value. The values between the start and end will be smoothly interpolated. Hopefully that isn't too confusing, it's easy to see when you run the script and look at the results. Once you pick the settings you want and select the "build animator" button, close the script and you should be able to scrub the animation and see the effect.

Jason

animator_builder.zip

(5.19 KiB) Downloaded 271 times

[Rikk The Gaijin]

Thanks a lot grimm, you rock!