51 lines
930 B
Text
51 lines
930 B
Text
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!!samps 1
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layout(constant_id = 0) const int alphatest = 4;
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//this shader is present for support for gles/gl3core contexts
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//it is single-texture-with-vertex-colours, and doesn't do anything special.
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//beware that a few things use this, including apparently fonts and bloom rescaling.
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//its really not meant to do anything special.
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#include "sys/defs.h"
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layout(location=0) varying vec2 tc;
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#ifdef VERTEX_SHADER
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void main ()
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{
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tc = v_texcoord;
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gl_Position = ftetransform();
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}
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#endif
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#ifdef FRAGMENT_SHADER
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layout(push_constant) uniform pushintf
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{
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vec4 colour;
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} push;
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void main ()
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{
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vec4 fc = texture2D(s_t0, tc) * push.colour;
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if (alphatest == 4)
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discard;
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if (alphatest == 3)
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{
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if (fc.a < 0.5)
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discard;
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}
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else if (alphatest == 2)
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{
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if (fc.a <= 0)
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discard;
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}
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else if (alphatest == 1)
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{
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if (fc.a >= 0.5)
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discard;
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}
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gl_FragColor = fc;
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}
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#endif
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