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Compute light and dark colors to use for a gradient
void PgCalcColorContrast( PgColor_t flat_color,
int contrast,
PgColor_t *light,
PgColor_t *dark );
- flat_color
- The base color towards which the computed colors are
intended to converge. It's the color in the middle of the gradient.
- contrast
- The amount of contrast that you want in the gradient, ranging from 0
(low contrast) through 255 (high contrast).
The contrast is biased towards the light color.
- light
- A pointer to the
PgColor_t
in which to store the
lightest color for the gradient.
- dark
- A pointer to the PgColor_t in which to store the darkest
color for the gradient.
ph
This function computes light and dark colors that can be
used to construct gradients. It's used by Photon to compute
bevel gradients.
Photon
Safety: | |
Interrupt handler |
No |
Signal handler |
No |
Thread |
No |
PgBackgroundShadings(),
PgColor_t
“Gradients”
in the Raw Drawing and Animation chapter of the
Photon Programmer's Guide
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