|
Given the geometric
primitive below (best viewed with monowidth font):
+ (x0,y0,z0)
|\
|
\
| \
(x3,y3,z1)+ +
(x1,y1,z1)
| /
|
/
|/
+
(x2,y2,z2)
Let z0 > z1 > z2.
With Gouraud shading, what is the color at point (x3,y3,z1), as a
function of the colors at (x0,y0,z0) and (x2,y2,z2)?
Is the calculation specific to
color representation (e.g., RGB or HSV)?
Why I'm
asking:
I'm
developing a surface graph that displays a value as both height and a color,
both using a linear mapping. The color mapping linearly maps to some subset of
HSVA. (A maximum of 179 degrees of hue are used.) For example, the value might be mapped to both
height and hue. But the color at (x3,y3,z1) is usually lighter than that at
(x1,y1,z1).
================================================================================ Andrew R. Thomas-Cramer Home: [EMAIL PROTECTED] http://www.execpc.com/~artc/ Work: [EMAIL PROTECTED] 608.287.1043 "Pa-pa" -- Zachary Thomas-Cramer, age 11-1/2
months.
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