Class Divergence

components/liquid-ether.tsx:791–815

    }

    class Divergence extends ShaderPass {
      constructor(simProps: any) {
        super({
          material: {
            vertexShader: face_vert,
            fragmentShader: divergence_frag,
            uniforms: {
              boundarySpace: { value: simProps.boundarySpace },
              velocity: { value: simProps.src.texture },
              px: { value: simProps.cellScale },
              dt: { value: simProps.dt },
            },
          },
          output: simProps.dst,
        });
        this.init();
      }
      update(...args: any[]) {
        const { vel } = (args[0] || {}) as { vel?: any };
        if (this.uniforms && vel) {
          this.uniforms.velocity.value = vel.texture;
        }
        super.update();
      }
    }

    class Poisson extends ShaderPass {
      constructor(simProps: any) {