refractorShader property

Map<String, dynamic> refractorShader

Implementation

static Map<String,dynamic> refractorShader = {
  'uniforms': {
    'color': {
      'value': null
    },
    'tDiffuse': {
      'value': null
    },
    'textureMatrix': {
      'value': null
    }
  },

  'vertexShader': /* glsl */'''

    uniform mat4 textureMatrix;

    varying vec4 vUv;

    void main() {

      vUv = textureMatrix * vec4( position, 1.0 );
      gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );

    }''',

  'fragmentShader': /* glsl */'''

    uniform vec3 color;
    uniform sampler2D tDiffuse;

    varying vec4 vUv;

    float blendOverlay( float base, float blend ) {

      return( base < 0.5 ? ( 2.0 * base * blend ) : ( 1.0 - 2.0 * ( 1.0 - base ) * ( 1.0 - blend ) ) );

    }

    vec3 blendOverlay( vec3 base, vec3 blend ) {

      return vec3( blendOverlay( base.r, blend.r ), blendOverlay( base.g, blend.g ), blendOverlay( base.b, blend.b ) );

    }

    void main() {

      vec4 base = texture2DProj( tDiffuse, vUv );
      gl_FragColor = vec4( blendOverlay( base.rgb, color ), 1.0 );

      #include <tonemapping_fragment>
      #include <colorspace_fragment>

    }'''

};