Additional Math Functions (bl_math)

Miscellaneous math utilities module

bl_math.clamp(value, min=0, max=1)

Clamps the float value between minimum and maximum. To avoid confusion, any call must use either one or all three arguments.

Parameters:

• value (float) – The value to clamp.

• min (float) – The minimum value, defaults to 0.

• max (float) – The maximum value, defaults to 1.

Returns:

The clamped value.

Return type:

float

bl_math.lerp(from_value, to_value, factor)

Linearly interpolate between two float values based on factor.

Parameters:

• from_value (float) – The value to return when factor is 0.

• to_value (float) – The value to return when factor is 1.

• factor (float) – The interpolation value, normally in [0.0, 1.0].

Returns:

The interpolated value.

Return type:

float

bl_math.smoothstep(from_value, to_value, value)

Performs smooth interpolation between 0 and 1 as value changes between from and to values. Outside the range the function returns the same value as the nearest edge.

Parameters:

• from_value (float) – The edge value where the result is 0.

• to_value (float) – The edge value where the result is 1.

• factor (float) – The interpolation value.

Returns:

The interpolated value in [0.0, 1.0].

Return type:

float