Optional r: number | number[]The value of the red component (0-1). Defaults to 0. If r is an array of length 3 or 4, the array will be used to populate all components.
Optional g: numberThe value of the green component (0-1). Defaults to 0.
Optional b: numberThe value of the blue component (0-1). Defaults to 0.
Optional a: numberThe value of the alpha component (0-1). Defaults to 1.
Private _shaderThe alpha component of the color.
The blue component of the color.
The green component of the color.
The red component of the color.
Static Readonly BLACKA constant color set to black [0, 0, 0, 1].
Static Readonly BLUEA constant color set to blue [0, 0, 1, 1].
Static Readonly CYANA constant color set to cyan [0, 1, 1, 1].
Static Readonly GRAYA constant color set to gray [0.5, 0.5, 0.5, 1].
Static Readonly GREENA constant color set to green [0, 1, 0, 1].
Static Readonly MAGENTAA constant color set to magenta [1, 0, 1, 1].
Static Readonly REDA constant color set to red [1, 0, 0, 1].
Static Readonly WHITEA constant color set to white [1, 1, 1, 1].
Static Readonly YELLOWA constant color set to yellow [1, 1, 0, 1].
用于传入shader的数据
Copies the contents of a source color to a destination color.
Self for chaining.
var src = new pc.Color(1, 0, 0, 1);
var dst = new pc.Color();
dst.copy(src);
console.log("The two colors are " + (dst.equals(src) ? "equal" : "different"));
A color to copy to the specified color.
Reports whether two colors are equal.
True if the colors are equal and false otherwise.
var a = new pc.Color(1, 0, 0, 1);
var b = new pc.Color(1, 1, 0, 1);
console.log("The two colors are " + (a.equals(b) ? "equal" : "different"));
The color to compare to the specified color.
Set the values of the color from a string representation '#11223344' or '#112233'.
Self for chaining.
A string representation in the format '#RRGGBBAA' or '#RRGGBB'. Where RR, GG, BB, AA are red, green, blue and alpha values. This is the same format used in HTML/CSS.
Returns the result of a linear interpolation between two specified colors.
Self for chaining.
var a = new pc.Color(0, 0, 0);
var b = new pc.Color(1, 1, 0.5);
var r = new pc.Color();
r.lerp(a, b, 0); // r is equal to a
r.lerp(a, b, 0.5); // r is 0.5, 0.5, 0.25
r.lerp(a, b, 1); // r is equal to b
The color to interpolate from.
The color to interpolate to.
The value controlling the point of interpolation. Between 0 and 1, the linear interpolant will occur on a straight line between lhs and rhs. Outside of this range, the linear interpolant will occur on a ray extrapolated from this line.
Assign values to the color components, including alpha.
Self for chaining.
The value for red (0-1).
The value for blue (0-1).
The value for green (0-1).
Optional a: numberThe value for the alpha (0-1), defaults to 1.
Converts the color to string form. The format is '#RRGGBBAA', where RR, GG, BB, AA are the red, green, blue and alpha values. When the alpha value is not included (the default), this is the same format as used in HTML/CSS.
The color in string form.
var c = new pc.Color(1, 1, 1);
// Outputs #ffffffff
console.log(c.toString());
If true, the output string will include the alpha value.
Create a new Color object.