mirror of
https://github.com/scratchfoundation/bgfx.git
synced 2024-11-25 09:08:22 -05:00
37 lines
1.1 KiB
Python
37 lines
1.1 KiB
Python
$input a_position, a_normal, a_tangent, a_texcoord0
|
|
$output v_wpos, v_view, v_normal, v_tangent, v_bitangent, v_texcoord0
|
|
|
|
/*
|
|
* Copyright 2011-2014 Branimir Karadzic. All rights reserved.
|
|
* License: http://www.opensource.org/licenses/BSD-2-Clause
|
|
*/
|
|
|
|
#include "../common/common.sh"
|
|
|
|
void main()
|
|
{
|
|
vec3 wpos = mul(u_model[0], vec4(a_position, 1.0) ).xyz;
|
|
gl_Position = mul(u_viewProj, vec4(wpos, 1.0) );
|
|
|
|
vec4 normal = a_normal * 2.0f - 1.0f;
|
|
vec3 wnormal = mul(u_model[0], vec4(normal.xyz, 0.0) ).xyz;
|
|
|
|
vec4 tangent = a_tangent * 2.0f - 1.0f;
|
|
vec3 wtangent = mul(u_model[0], vec4(tangent.xyz, 0.0) ).xyz;
|
|
|
|
vec3 viewNormal = normalize(mul(u_view, vec4(wnormal, 0.0) ).xyz);
|
|
vec3 viewTangent = normalize(mul(u_view, vec4(wtangent, 0.0) ).xyz);
|
|
vec3 viewBitangent = cross(viewNormal, viewTangent) * tangent.w;
|
|
mat3 tbn = mat3(viewTangent, viewBitangent, viewNormal);
|
|
|
|
v_wpos = wpos;
|
|
|
|
vec3 view = mul(u_view, vec4(wpos, 0.0) ).xyz;
|
|
v_view = mul(view, tbn);
|
|
|
|
v_normal = viewNormal;
|
|
v_tangent = viewTangent;
|
|
v_bitangent = viewBitangent;
|
|
|
|
v_texcoord0 = a_texcoord0;
|
|
}
|