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Viewing changes to examples/eglplasma.c

  • Committer: Daniel van Vugt
  • Date: 2014-03-06 03:18:55 UTC
  • mfrom: (1416.1.37 development-branch)
  • Revision ID: daniel.van.vugt@canonical.com-20140306031855-pjar7q2m3ghjwly5
Merge latest development-branch.

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examples/eglplasma.c
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        "    const float pi2 = 6.283185308;                      \n"
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        "    float u = texcoord.x * pi2;                         \n"
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        "    float v = texcoord.y * pi2;                         \n"
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        "    float t = mod(theta, pi2);                          \n"
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        "    float us = (cos(1.1 * u + 7.0 * t) +                \n"
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        "                cos(2.3 * v * cos(1.0 * t)) +           \n"
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        "                cos(0.3 * u * cos(3.0 * t))             \n"
 
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        "    float us = (cos(1.1 * u + 7.0 * theta) +            \n"
 
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        "                cos(2.3 * v * cos(1.0 * theta)) +       \n"
 
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        "                cos(0.3 * u * cos(3.0 * theta))         \n"
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        "               ) / 3.0;                                 \n"
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        "    float vs = (cos(2.3 * v + 8.0 * t) +                \n"
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        "                cos(1.3 * u * cos(3.0 * t)) +           \n"
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        "                cos(1.7 * v * cos(2.0 * t))             \n"
 
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        "    float vs = (cos(2.3 * v + 8.0 * theta) +            \n"
 
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        "                cos(1.3 * u * cos(3.0 * theta)) +       \n"
 
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        "                cos(1.7 * v * cos(2.0 * theta))         \n"
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        "               ) / 3.0;                                 \n"
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        "    float x = (us * vs + 1.0) / 2.0;                    \n"
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        "    gl_FragColor = vec4(gradient(x), 1.0);              \n"
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        1.0f,-1.0f,
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       -1.0f,-1.0f,
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    };
 
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    const float pi2 = 6.283185308f;
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    GLuint vshader, fshader, prog;
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    GLint linked, low_color, high_color, vpos, theta;
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    unsigned int width = 0, height = 0;
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    {
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        glUniform1f(theta, angle);
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        angle += 0.005f;
 
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        if (angle > pi2)
 
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            angle -= pi2;
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        glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
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        mir_eglapp_swap_buffers();
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    }