25 lines
645 B
Python
25 lines
645 B
Python
|
$input a_position, a_normal
|
||
|
|
$output v_view, v_normal, v_shadowcoord
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Copyright 2013 Dario Manesku. All rights reserved.
|
||
|
|
* License: http://www.opensource.org/licenses/BSD-2-Clause
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "../common/common.sh"
|
||
|
|
|
||
|
|
uniform mat4 u_lightMtx;
|
||
|
|
|
||
|
|
void main()
|
||
|
|
{
|
||
|
|
gl_Position = mul(u_modelViewProj, vec4(a_position, 1.0) );
|
||
|
|
|
||
|
|
vec4 normal = a_normal * 2.0 - 1.0;
|
||
|
|
v_normal = normalize(mul(u_modelView, vec4(normal.xyz, 0.0) ).xyz);
|
||
|
|
v_view = mul(u_modelView, vec4(a_position, 1.0)).xyz;
|
||
|
|
|
||
|
|
const float shadowMapOffset = 0.001;
|
||
|
|
vec3 posOffset = a_position + normal.xyz * shadowMapOffset;
|
||
|
|
v_shadowcoord = mul(u_lightMtx, vec4(posOffset, 1.0) );
|
||
|
|
}
|