32 lines
767 B
Scala
32 lines
767 B
Scala
$input v_wpos, v_view, v_normal, v_tangent, v_bitangent, v_texcoord0
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/*
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* Copyright 2011-2017 Branimir Karadzic. All rights reserved.
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* License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause
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*/
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#include "../common/common.sh"
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SAMPLER2D(s_texColor, 0);
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SAMPLER2D(s_texNormal, 1);
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void main()
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{
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vec3 normal;
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normal.xy = texture2D(s_texNormal, v_texcoord0).xy * 2.0 - 1.0;
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normal.z = sqrt(1.0 - dot(normal.xy, normal.xy) );
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mat3 tbn = mat3(
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normalize(v_tangent),
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normalize(v_bitangent),
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normalize(v_normal)
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);
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normal = normalize(mul(tbn, normal) );
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vec3 wnormal = normalize(mul(u_invView, vec4(normal, 0.0) ).xyz);
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gl_FragData[0] = texture2D(s_texColor, v_texcoord0);
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gl_FragData[1] = vec4(encodeNormalUint(wnormal), 1.0);
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}
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