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Rgbscale
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[edit] Definition
INT rgbscale ( <INT fileID> , <INT fraphID> , <FLOAT r> , <FLOAT g> , <FLOAT b> )
This will convert the specified graphic by using the specified color as a reference. The converted graphic will have only the specified color and lighter/darker colors; see notes for the details.
[edit] Parameters
INT fileID | - The fileID of the file that holds the graphics. |
INT graphID | - The graphID of the graphic to convert. |
FLOAT r | - The red component of the color to be used for reference. |
FLOAT g | - The green component of the color to be used for reference. |
FLOAT b | - The blue component of the color to be used for reference. |
[edit] Returns
INT
-1 | - Invalid graphic. |
1 | - Success. |
[edit] Errors
Unsupported color depth | - The graphic's color depth is not 16bit. |
[edit] Notes
The exact formula is:
for every pixel: c = 0.3 * oldpixel_r + 0.59 * oldpixel_g + 0.11 * oldpixel_b newpixel_r = r * c; newpixel_g = g * c; newpixel_b = b * c;
where r,g,b are the specified r,g,b.
Note that rgbscale(0,map,1,1,1) = grayscale(0,map,0)
, for a valid graphic (0,map).
Graphical effects Functions | |
• Blur() • Grayscale() • Rgbscale() • |