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| Release 4.0 | ||
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Predefined Functions - blend
| Function name: | blend - Interpolate colors |
| Synopsis: | blend(col2,col2,pos) |
| Input data type | Output data type |
|---|---|
| color, color, real | color |
Description:
This function interpolates the two colors in the RGBA colorspace using linear interpolation and returns the interpolated color at the given position. The third parameter specifies the position:
- 0 means, the position is at the first color, i.e. the first color is returned.
- 1 means, the position is at the second color, i.e. the second color is returned.
- 0.5 means, the position is in the middle of the two colors, thus the interpolated color in the middle of the two colors will be returned.
blend( rgba(0.0, 1.0, 1.0, 1.0) ,
rgba(1.0, 0.5, 0.0, 0.5) , 1 )will return the second color, i.e.rgba(1.0, 0.5, 0.0, 0.5)blend( rgba(0.0, 1.0, 1.0, 1.0) ,
rgba(1.0, 0.5, 0.0, 0.5) , 0.5 )will return the color, i.e.rgba(0.5, 0.75, 0.5, 0.75)blend( rgba(0.0, 1.0, 1.0, 1.0) ,
rgba(1.0, 0.5, 0.0, 0.5) , 2 )will return the extrapolated colorrgba(2.0, 0.0, -1.0, 0.0)