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37 lines
1.3 KiB
37 lines
1.3 KiB
/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
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* in compliance with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the License
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* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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* or implied. See the License for the specific language governing permissions and limitations under
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* the License.
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*/
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precision mediump float;
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uniform sampler2D u_Texture;
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uniform vec2 u_Scale;
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varying vec2 v_TexCoordinate;
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void main() {
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float weights[11];
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weights[0] = 0.047748641153356156;
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weights[1] = 0.05979670798364139;
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weights[2] = 0.07123260215138659;
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weights[3] = 0.08071711293576822;
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weights[4] = 0.08700369673862933;
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weights[5] = 0.08920620580763855;
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weights[6] = 0.08700369673862933;
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weights[7] = 0.08071711293576822;
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weights[8] = 0.07123260215138659;
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weights[9] = 0.05979670798364139;
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weights[10] = 0.047748641153356156;
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vec4 color = vec4(0.0, 0.0, 0.0, 0.0);
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for (int i = 0; i < 11; i++) {
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vec2 coords = v_TexCoordinate.xy + ((float(i) - 5.0) * u_Scale);
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color += texture2D(u_Texture, coords) * weights[i];
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}
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gl_FragColor = color;
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} |