Drawing context and p5.Graphics

vjjv · May 28, 2022, 8:09am

Hello!
I was using this function to generate quick shadows:

  drawingContext.shadowColor = color(0, 0, 0, 0.6);
  drawingContext.shadowBlur = 50;
  drawingContext.shadowOffsetX = -25;
  drawingContext.shadowOffsetY = -25;

but now im inside a pgraphics and cant it make it work. Its possible?
Any ideas?

GoToLoop · May 28, 2022, 11:08am

A p5.Graphics object has a property named _renderer which points to a p5.Renderer object:

github.com

processing/p5.js/blob/v1.4.1/src/core/p5.Graphics.js#L50-L54


      
          if (r === constants.WEBGL) {
            this._renderer = new p5.RendererGL(this.canvas, this, false);
          } else {
            this._renderer = new p5.Renderer2D(this.canvas, this, false);
          }

Which in turn has a property called drawingContext that you’re looking for:

github.com

processing/p5.js/blob/v1.4.1/src/core/p5.Renderer2D.js#L15-L20


      
          p5.Renderer2D = function(elt, pInst, isMainCanvas) {
            p5.Renderer.call(this, elt, pInst, isMainCanvas);
            this.drawingContext = this.canvas.getContext('2d');
            this._pInst._setProperty('drawingContext', this.drawingContext);
            return this;
          };

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Drawing context and p5.Graphics

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