mirror of https://github.com/axmolengine/axmol.git
43 lines
1.6 KiB
GLSL
43 lines
1.6 KiB
GLSL
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/* Copyright (c) 2012 Scott Lembcke and Howling Moon Software
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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const char* positionColorLengthTexture_frag = R"(
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#ifdef GL_ES
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// #extension GL_OES_standard_derivatives : enable
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varying mediump vec4 v_color;
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varying mediump vec2 v_texcoord;
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#else
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varying vec4 v_color;
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varying vec2 v_texcoord;
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#endif
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void main()
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{
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// #if defined GL_OES_standard_derivatives
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// gl_FragColor = v_color*smoothstep(0.0, length(fwidth(v_texcoord)), 1.0 - length(v_texcoord));
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// #else
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gl_FragColor = v_color*step(0.0, 1.0 - length(v_texcoord));
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// #endif
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}
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)";
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