How use function ColorLerp

Harton · 05-23-2011 12:38 AM

I would like change object color from colorMin to colorMax and vice versa from colorMax to colorMin. I use function ColorLerp but this function work oddly.
Example:

Code:

// in class declaration

Color color, colorMin, colorMax;

bool up;

// in class function - update()

if(up == true)

{

    color = ColorLerp(color, colorMax, 0.5);

    if(color==colorMax)

        up = false;

}

else

{

    color = ColorLerp(color, colorMin, 0.5);

    if(color==colorMin)

        up = true;

}

object.color = color.asVec4();

What is wrong? Variable 'up' never change...

Driklyn · 05-23-2011 06:05 AM

I would recommend using a timer-based solution:

Code:

Flt colorStep;

Bool update()

{

    colorStep += Time.d() * ((up) ? 1 : -1);

    Clamp(colorStep, 0, 1);

    color = ColorLerp(colorMin, colorMax, colorStep);

    // ...

}

Harton · 05-23-2011 08:51 AM

Thanks!
A small fix and it's working.

How use function ColorLerp
Author	Message