2020-12-16 23:44:15 +00:00
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2020-12-18 01:36:20 +00:00
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#define FUNC_NEVER 512 // 0x0200
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#define FUNC_LESS 513 // 0x0201
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#define FUNC_EQUAL 514 // 0x0202
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#define FUNC_LEQUAL 515 // 0x0203
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#define FUNC_GREATER 516 // 0x0204
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#define FUNC_NOTEQUAL 517 // 0x0205
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#define FUNC_GEQUAL 518 // 0x0206
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#define FUNC_ALWAYS 519 // 0x0207
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2020-12-16 23:44:15 +00:00
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#if @alphaFunc != FUNC_ALWAYS && @alphaFunc != FUNC_NEVER
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uniform float alphaRef;
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#endif
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void alphaTest()
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{
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#if @alphaFunc == FUNC_NEVER
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discard;
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#elif @alphaFunc == FUNC_LESS
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if (gl_FragData[0].a > alphaRef)
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discard;
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#elif @alphaFunc == FUNC_EQUAL
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if (gl_FragData[0].a != alphaRef)
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discard;
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#elif @alphaFunc == FUNC_LEQUAL
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if (gl_FragData[0].a >= alphaRef)
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discard;
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#elif @alphaFunc == FUNC_GREATER
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if (gl_FragData[0].a < alphaRef)
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discard;
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#elif @alphaFunc == FUNC_NOTEQUAL
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if (gl_FragData[0].a == alphaRef)
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discard;
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#elif @alphaFunc == FUNC_GEQUAL
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if (gl_FragData[0].a <= alphaRef)
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discard;
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#endif
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}
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