I have tried to understand Blenders color ramp, but I just don’t get it, even after looking at the wiki. All I want is a simple gradient from (Black > Red> Yellow > White) but whatever i try it always just selects the color in the middle of the ramp. What am I missing?
show nodes set up wil be easier to understand
but color ramp dont’ really do gradients more like color bands
did you specify generated for mapping
default mapping is for UV !
happy cycles
Add (for example) a Texture->Gradient Texture node. Connect its Fac output to the Fac input of the Color Ramp node. You’ll also want to plug some texture coordinate into the Vector input of the texture, usually UV.
With your existing setup, you’re just telling every pixel “use the color ramp value at the 50% position along my ramp” (Fac = 0.50). The texture input says “go pixel by pixel and select the appropriate color ramp position (Fac) based on the brightness value (position) in the texture”. It’s a little hard to get your mind around at first. Play with the various types of Texture nodes and you’ll get the hang of it.
Thanks Ricky, yes I did use “Generated” for the mapping.
Thanks, I will try that.
Not at all. Thanks for the image. I don’t think I would have understood without it.