bgfx/examples/04-mesh/vs_mesh.sc

33 lines
810 B
Python

$input a_position, a_normal
$output v_pos, v_view, v_normal, v_color0
/*
* Copyright 2011-2016 Branimir Karadzic. All rights reserved.
* License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause
*/
#include "../common/common.sh"
uniform vec4 u_time;
void main()
{
vec3 pos = a_position;
float sx = sin(pos.x*32.0+u_time.x*4.0)*0.5+0.5;
float cy = cos(pos.y*32.0+u_time.x*4.0)*0.5+0.5;
vec3 displacement = vec3(sx, cy, sx*cy);
vec3 normal = a_normal.xyz*2.0 - 1.0;
pos = pos + normal*displacement*vec3(0.06, 0.06, 0.06);
gl_Position = mul(u_modelViewProj, vec4(pos, 1.0) );
v_pos = gl_Position.xyz;
v_view = mul(u_modelView, vec4(pos, 1.0) ).xyz;
v_normal = mul(u_modelView, vec4(normal, 0.0) ).xyz;
float len = length(displacement)*0.4+0.6;
v_color0 = vec4(len, len, len, 1.0);
}