Thread: In GIMP, how can I modify the noise I used to make my world texture to be ice and sno

Hi Tony, unfortunatly I don't know GIMP, but I can tell you what I just did in photoshop
Made a copy of the top island in its own layer
selected the island on the base layer
lightened the colors to a white - and lost most definition in doing so
Changed the top layer to "luminosity" - thus affecting the layer below only with its grayscale information

hope it helps

Actually I was playing with what I could in Gimp with what you said and I couldn't quite figure out how to change the luminosity to get the texture to show through. What I ended up doing and I think it worked out alright is I made another layer, used the render/cloud/plasma tool and filled the whole layer. I played with the threshold and then the Hue/Saturation to get a nice bluey white gray texture. Layer masked everything but the northern continent and then with various brushes and opacities brushed a little more mask around the coast of the continent. And a little less mask around the the north coast of the main land mass. I am going to play a little more with it but I think this will work well because I can then "brush in" more snow in other spots in the map. I will post another pic shortly to show how it going.

I'd also suggest getting the felImage noise plugin that gives more options for noise...

# Can generate tileable textures
# Can generate textures for use in spherical mapping
# Can use foreground/background colors, gradients, independent R/G/B/A or warp an image
# Implements several noise functions
# The way the colors are mapped can be tuned (gradient rotated, reversed, repeated, etc..)
# Fractal Brownian Motion (fBm) or Multifractal textures can be generated
# A phase can be specified, which results in the gradual change of the noise (useful to generate animation frames)
# Can save and load presets

-Rob A>