Scaling Normal Maps in Slim

v1 is the normal map input.

v2 is our multiplier

1. get individual channels first

float red = comp(v1,0);

2. since normal maps have R and G values ranged between 0.5 and 1 lets subtract 0.5 from it so that it ranges from 0 to 0.5

float red1 = red - 0.5

3. multiply red1 with v2 to scale our red and green values and then add 0.5 to have our range back at 0.5 to 1

result = (red1*v2)+0.5;

float red = comp(v1,0)-0.5;

float green = comp(v1,1)-0.5;

float red1 = (red*v2)+0.5;

float green1= (green*v2)+0.5;

result = color(red1,green1,1);