I cant figure out how to shade objects
Can anyone help?
Shading
Moderators: MtnViewJohn, chris, mtnviewmark
shading
Not sure what you mean. I am guessing you mean to get something other than black. The trick is that the default for each shape is black, which is hue=0 (if any colour, it will be red), saturation=0 (OK, forget about the colour), brightness = 0 (OK forget about even making it grey.)
So if you increase the brightness by putting the attribute "b 0.5" somewhere it will lift the brightness from 0 to 0.5. This is grey. If you want this to be coloured, you can combine the brightness with some saturation: "b 0.5 sat 0.5" which is redder or "b 0.5 sat 1" which is totally red (no grey), but still darkish so "b 1 sat 1" makes it fire-engine red.
Then you can play with the hue. Have a look at the manual for more information.
So if you increase the brightness by putting the attribute "b 0.5" somewhere it will lift the brightness from 0 to 0.5. This is grey. If you want this to be coloured, you can combine the brightness with some saturation: "b 0.5 sat 0.5" which is redder or "b 0.5 sat 1" which is totally red (no grey), but still darkish so "b 1 sat 1" makes it fire-engine red.
Then you can play with the hue. Have a look at the manual for more information.
CF has no instruction to shade objects or shapes. You can do it anyway by different custom methods, depending of what you really want (also a simulation of shading can be found accidently). The best is to look on the code of a design that match what you mean (choose one with few code ;^)i was wondering if you could tell me how to shade certain parts of an image?
itd be great if you could help me out.
thanks a bunch,
karcher
It's maybe away from the point, but as an answer, I take it like a small exercise:
You can watch and manipulate this in CF:
Code: Select all
startshape K
// Make a column of 12 elements …
rule K {12*{y 1.5}AR{}}
// … separated in two parts, one on the right and one on the left.
rule AR {CH{x -.75}ER{x .75}}
// The one on the right is a row of non shaded shapes going on the right.
rule CH 3{NONSHADED{}CH{x -1.5}} //(continue the row)
rule CH {} //(stop it)
// The one on the left is a row of shaded shapes going on the left.
rule ER 3{SHADED{}ER{x 1.5}} //(continue the row)
rule ER {} //(stop it)
// Here is the non shaded shape, satureted with color.
rule NONSHADED {SHAPE {b 1 sat 1}}
// Here is the shaded shape, wich is NONSHADED+ SHADOW.
rule SHADED {NONSHADED {} SHADOW{s .9 x .3 y -.3 z -1}}
// And here is the shadow.
rule SHADOW {30*{s .99}SHAPE { alpha -.99}}
// The shape used for all.
rule SHAPE {SQUARE{}}
8^)