25 lines
705 B
Python
25 lines
705 B
Python
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$input a_position, a_normal
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$output v_normal // RSM shadow
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/*
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* Copyright 2016 Joseph Cherlin. 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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uniform vec4 u_tint;
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void main()
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{
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gl_Position = mul(u_modelViewProj, vec4(a_position, 1.0) );
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// Calculate normal. Note that compressed normal is stored in the vertices
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vec3 normalObjectSpace = a_normal.xyz*2.0+-1.0; // Normal is stored in [0,1], remap to [-1,1].
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// Transform normal into view space.
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v_normal = mul(u_modelView, vec4(normalObjectSpace, 0.0) ).xyz;
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// Normalize to remove (uniform...) scaling
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v_normal = normalize(v_normal);
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}
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