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Class

PShader

Name

set()
Examples
PImage tex;
PShader deform;

void setup() {
  size(640, 360, P2D);
  tex = loadImage("tex1.jpg");
  deform = loadShader("deform.glsl");
  deform.set("resolution", float(width), float(height));
}

void draw() {
  deform.set("time", millis() / 1000.0);
  deform.set("mouse", float(mouseX), float(mouseY));
  shader(deform);
  image(tex, 0, 0, width, height);
}
Description Sets the uniform variables inside the shader to modify the effect while the program is running.
Syntax
.set(name, x)
.set(name, x, y)
.set(name, x, y, z)
.set(name, x, y, z, w)
.set(name, vec)
.set(name, vec, ncoords)
.set(name, boolvec, ncoords)
.set(name, mat)
.set(name, mat, use3x3)
.set(name, tex)
Parameters
name String: the name of the uniform variable to modify
x boolean, float, or int: first component of the variable to modify
y boolean, float, or int: second component of the variable to modify. The variable has to be declared with an array/vector type in the shader (i.e.: int[2], vec2)
z boolean, float, or int: third component of the variable to modify. The variable has to be declared with an array/vector type in the shader (i.e.: int[3], vec3)
w boolean, float, or int: fourth component of the variable to modify. The variable has to be declared with an array/vector type in the shader (i.e.: int[4], vec4)
vec boolean[], float[], int[], or PVector: modifies all the components of an array/vector uniform variable. PVector can only be used if the type of the variable is vec3.
ncoords int: number of coordinates per element, max 4
mat PMatrix3D, or PMatrix2D: matrix of values
use3x3 boolean: enforces the matrix is 3 x 3
tex PImage: sets the sampler uniform variable to read from this image texture
Returnsvoid
Updated on January 21, 2019 10:05:14am EST

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