bgfx/examples/14-shadowvolumes/vs_shadowvolume_texture_lightning.sc

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$input a_position, a_normal, a_texcoord0
$output v_normal, v_view, v_texcoord0, v_pos
/*
2014-01-13 17:45:18 -05:00
* Copyright 2013-2014 Dario Manesku. All rights reserved.
* License: http://www.opensource.org/licenses/BSD-2-Clause
*/
#include "../common/common.sh"
uniform float u_flipV;
void main()
{
gl_Position = mul(u_modelViewProj, vec4(a_position, 1.0) );
vec4 normal = a_normal * 2.0f - 1.0f;
v_normal = mul(u_modelView, vec4(normal.xyz, 0.0)).xyz;
v_view = mul(u_modelView, vec4(a_position, 1.0)).xyz;
v_texcoord0 = a_texcoord0;
v_pos = gl_Position;
v_pos.y *= -u_flipV;
}