mame/3rdparty/bgfx/examples/21-deferred/vs_deferred_geom.sc
Miodrag Milanović 812e6094f4
Update BGFX, BX and BIMG (#10789)
* Update to bgfx a93a714632b79b5ddbf5c86ac323fa9b76ed3433
Co-authored-by: Бранимир Караџић <branimirkaradzic@gmail.com>
2023-01-05 09:32:40 -05:00

38 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 2011-2022 Branimir Karadzic. All rights reserved.
* License: https://github.com/bkaradzic/bgfx/blob/master/LICENSE
*/
#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 * 2.0 - 1.0;
vec3 wnormal = mul(u_model[0], vec4(normal.xyz, 0.0) ).xyz;
vec4 tangent = a_tangent * 2.0 - 1.0;
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;
}