56 lines
1.6 KiB
GLSL
56 lines
1.6 KiB
GLSL
//======= Copyright (c) 2015-2020 Vera Visions LLC. All rights reserved. =======
|
|
//
|
|
// Purpose:
|
|
//
|
|
// The diffusemap (monochrome) decides the reflectivity of a surface.
|
|
// Using a cube environmentmap as a source for reflectivity.
|
|
//==============================================================================
|
|
|
|
!!ver 110
|
|
!!permu FOG
|
|
!!permu BUMP
|
|
!!permu DELUXE
|
|
!!samps diffuse normalmap reflectcube
|
|
|
|
#include "sys/defs.h"
|
|
|
|
varying vec2 tex_c;
|
|
varying vec3 eyevector;
|
|
varying mat3 invsurface;
|
|
varying vec2 wat_c;
|
|
|
|
#ifdef VERTEX_SHADER
|
|
void main (void)
|
|
{
|
|
invsurface[0] = v_svector;
|
|
invsurface[1] = v_tvector;
|
|
invsurface[2] = v_normal;
|
|
|
|
vec3 eyeminusvertex = e_eyepos - v_position.xyz;
|
|
eyevector.x = dot(eyeminusvertex, v_svector.xyz);
|
|
eyevector.y = dot(eyeminusvertex, v_tvector.xyz);
|
|
eyevector.z = dot(eyeminusvertex, v_normal.xyz);
|
|
|
|
tex_c = v_texcoord;
|
|
wat_c = tex_c + vec2(e_time * 0.01, sin(e_time) * 0.005);
|
|
gl_Position = ftetransform();
|
|
}
|
|
#endif
|
|
|
|
#ifdef FRAGMENT_SHADER
|
|
#include "sys/fog.h"
|
|
void main (void)
|
|
{
|
|
vec3 cube_c;
|
|
vec4 out_f = vec4(1.0, 1.0, 1.0, 1.0);
|
|
vec4 diffuse_f = texture2D(s_diffuse, tex_c);
|
|
cube_c = reflect(normalize(-eyevector), texture2D(s_normalmap, wat_c).rgb * 0.35);
|
|
cube_c = cube_c.x * invsurface[0] + cube_c.y * invsurface[1] + cube_c.z * invsurface[2];
|
|
cube_c = (m_model * vec4(cube_c.xyz, 0.0)).xyz;
|
|
out_f.rgb = textureCube(s_reflectcube, cube_c).rgb;
|
|
out_f.rgb *= diffuse_f.r + diffuse_f.b + diffuse_f.g / 3.0;
|
|
|
|
// Add fog to the final fragment
|
|
gl_FragColor = fog4(out_f);
|
|
}
|
|
#endif
|