Loads the current value of each pixel in the framebuffer into its pixels array.
myBuffer.loadPixels() must be called before reading from or writing to myBuffer.pixels.
示例
function setup() {
createCanvas(100, 100, WEBGL);
background(200);
// Create a p5.Framebuffer object.
let myBuffer = createFramebuffer();
// Load the pixels array.
myBuffer.loadPixels();
// Get the number of pixels in the
// top half of the framebuffer.
let numPixels = myBuffer.pixels.length / 2;
// Set the framebuffer's top half to pink.
for (let i = 0; i < numPixels; i += 4) {
myBuffer.pixels[i] = 255;
myBuffer.pixels[i + 1] = 102;
myBuffer.pixels[i + 2] = 204;
myBuffer.pixels[i + 3] = 255;
}
// Update the pixels array.
myBuffer.updatePixels();
// Draw the p5.Framebuffer object to the canvas.
Notice any errors or typos? Please let us know. Please feel free to edit src/webgl/p5.Framebuffer.js and open a pull request!