garageCube

Dear readers,

I am generating gradients to control kinetics. I was wondering if there is a way to generate non linear gradients in the madmapper gradient shader or to maybe alter the shader to generate them. I am looking for sinewaves instead of linear animations, the gradients generated by the gradient shader are linear.

Boris

Hi, you can edit the shader (right click the Gradient and choose "Open in Editor", in editor tool bar, press the button with 3 dots and choose "New Material from Gradient Color".
In the code, replace the line:

vec4 col = mix(colors[stepId%mat_color_count],colors[(stepId+1)%mat_color_count],pow(pos/stepSize-stepId,pow(mat_curve,6)));

with

// pos/stepSize-stepId is a value in 0 & 1 range, at 0 we show one color, at 1 the next color
// Make it a sinusoid
float mixFactor = 0.5 + 0.5 * sin( -PI/2 + (pos/stepSize-stepId) * PI );
vec4 col = mix(colors[stepId%mat_color_count],colors[(stepId+1)%mat_color_count],mixFactor);