Converting to grayscale

[pciccone]

Hello.

What would be the best way to convert a color texture to grayscale? I don't mean to convert it to a float texture but to a "color" grayscale version? Should I use a Band texture with black and white inputs and drive it via the float version of the texture? Any more straightforward solution?

Thanks in advance.

[jensverwiebe]

I use a mixtexture for such:

Result:

Jens

[pciccone]

Thank you Jens.

[Lord Crc]

I was thinking about adding implicit float -> color conversion, so you could use a float texture for a color field. The original motivation was to make it easier to use the native blender textures. Guess we have another reason now

[pciccone]

That would be great! Thanks.

[jeanphi]

Hi,

Just in case, I really think we should keep the core as simple as possible and handle corner cases outside of it: either in the exporters or at parsing time generating additional stuff on the fly. In the long term it will help a lot performance and maintenance wise.

Jeanphi

[Lord Crc]

I really think we should keep the core as simple as possible and handle corner cases outside of it: either in the exporters or at parsing time generating additional stuff on the fly.

I was thinking about adding some code to ParamSet::GetSWCSpectrumTexture to create a mix or scale texture if it fails to find a color texture but does find a float, or something along those lines.