ifsrenderer-linux / Transforms / Crop_Cuboid.ifstf

@Name: Crop Cuboid
@Version: 1.1
@Description: Crop into a cuboid defined by min and max XYZ values, select visibility of inside, faces, edges (by Rychveldir)
@Tags: crop

@Faces: 0
@Edges: 0
@Inside: 1
@Min: -1 -1 -1
@Max: 1 1 1

vec3 n = clamp(p, @Min, @Max);
float ec = 0;

//check if the vector falls on an edge or corner:
if (n.x == @Max.x) {ec += 1;}
if (n.x == @Min.x) {ec += 1;}
if (n.y == @Max.y) {ec += 1;}
if (n.y == @Min.y) {ec += 1;}
if (n.z == @Max.z) {ec += 1;}
if (n.z == @Min.z) {ec += 1;}

//remove corner points
if (ec > 2)
	return discarded_point;

float fade_prob = random(next);

if (ec == 0 && fade_prob > @Inside) //fade inside
	return discarded_point;
else if (ec == 1 && fade_prob > @Faces) //fade faces
	return discarded_point;
else if (ec > 1 && fade_prob > @Edges) //fade edges
	return discarded_point;

return n;