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2014/10/15 ¤U¤È 10:09:20
iphone Programming Glossary: fragtexcoord.xOpenGL ES 2.0 fragment shader to blur is slow and low quality http://stackoverflow.com/questions/4355525/opengl-es-2-0-fragment-shader-to-blur-is-slow-and-low-quality 7x1 gaussian blur fragment shader highp vec4 color vec4 0 0 0 1 for int i 0 i 7 i color texture2D texture vec2 fragTexCoord.x gaussFilter i .x blurSize fragTexCoord.y gaussFilter i .x blurSize gaussFilter i .y gl_FragColor color Edit A box blur may.. be the way to go. Here is a box blur version of the shader highp vec4 color vec4 0 0 0 1 color texture2D texture vec2 fragTexCoord.x fragTexCoord.y 4.0 blurAmount 0.05 color texture2D texture vec2 fragTexCoord.x fragTexCoord.y 3.0 blurAmount 0.09 color.. 0 0 0 1 color texture2D texture vec2 fragTexCoord.x fragTexCoord.y 4.0 blurAmount 0.05 color texture2D texture vec2 fragTexCoord.x fragTexCoord.y 3.0 blurAmount 0.09 color texture2D texture vec2 fragTexCoord.x fragTexCoord.y 2.0 blurAmount 0.12 color..
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