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renderProgram postprocess/showAlpha {
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program vertex arb { <%
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OPTION ARB_position_invariant;
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%> }
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program fragment arb { <%
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OPTION ARB_precision_hint_fastest;
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TEMP R0;
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TEX R0, fragment.position, $currentRender, RECT;
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MOV result.color, R0.aaaa;
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%> }
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}
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