2013-12-11 07:37:51 +04:00
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$input v_position
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/*
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2014-01-14 02:45:18 +04:00
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* Copyright 2013-2014 Dario Manesku. All rights reserved.
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2016-01-01 11:11:04 +03:00
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* License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause
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2013-12-11 07:37:51 +04:00
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*/
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#include "../common/common.sh"
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void main()
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{
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float depth = v_position.z/v_position.w * 0.5 + 0.5;
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float depthSq = depth*depth;
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//TODO: try this.
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//vec2 dxy = vec2(dFdx(depth), dFdy(depth));
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//depthSq += 0.25*dot(dxy, dxy);
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gl_FragColor = vec4(packHalfFloat(depth), packHalfFloat(depthSq));
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}
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