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