1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
/**
* @file pbropaqueF.glsl
*
* $LicenseInfo:firstyear=2022&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2022, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
/*[EXTRA_CODE_HERE]*/
#define DEBUG_BASIC 0
#define DEBUG_VERTEX 0
#define DEBUG_NORMAL 0
#define DEBUG_POSITION 0
uniform sampler2D diffuseMap; //always in sRGB space
uniform float metallicFactor;
uniform float roughnessFactor;
uniform vec3 emissiveColor;
#ifdef HAS_NORMAL_MAP
uniform sampler2D bumpMap;
#endif
#ifdef HAS_EMISSIVE_MAP
uniform sampler2D emissiveMap;
#endif
#ifdef HAS_SPECULAR_MAP
uniform sampler2D specularMap; // Packed: Occlusion, Metal, Roughness
#endif
uniform samplerCube environmentMap;
uniform mat3 env_mat;
#ifdef DEFINE_GL_FRAGCOLOR
out vec4 frag_data[4];
#else
#define frag_data gl_FragData
#endif
VARYING vec3 vary_position;
VARYING vec4 vertex_color;
VARYING vec2 vary_texcoord0;
#ifdef HAS_NORMAL_MAP
VARYING vec3 vary_normal;
VARYING vec3 vary_mat0;
VARYING vec3 vary_mat1;
VARYING vec3 vary_mat2;
VARYING vec2 vary_texcoord1;
#endif
#ifdef HAS_SPECULAR_MAP
VARYING vec2 vary_texcoord2;
#endif
vec2 encode_normal(vec3 n);
vec3 linear_to_srgb(vec3 c);
const float M_PI = 3.141592653589793;
void main()
{
// IF .mFeatures.mIndexedTextureChannels = LLGLSLShader::sIndexedTextureChannels;
// vec3 col = vertex_color.rgb * diffuseLookup(vary_texcoord0.xy).rgb;
// else
vec3 col = vertex_color.rgb * texture2D(diffuseMap, vary_texcoord0.xy).rgb;
#ifdef HAS_NORMAL_MAP
vec4 norm = texture2D(bumpMap, vary_texcoord1.xy);
norm.xyz = norm.xyz * 2 - 1;
vec3 tnorm = vec3(dot(norm.xyz,vary_mat0),
dot(norm.xyz,vary_mat1),
dot(norm.xyz,vary_mat2));
#else
vec4 norm = vec4(0,0,0,1.0);
// vec3 tnorm = vary_normal;
vec3 tnorm = vec3(0,0,1);
#endif
tnorm = normalize(tnorm.xyz);
norm.xyz = normalize(tnorm.xyz);
// RGB = Occlusion, Roughness, Metal
// default values
// occlusion ?
// roughness 1.0
// metal 1.0
#ifdef HAS_SPECULAR_MAP
vec3 spec = texture2D(specularMap, vary_texcoord2.xy).rgb;
#else
vec3 spec = vec3(1,1,1);
#endif
spec.g *= roughnessFactor;
spec.b *= metallicFactor;
vec3 emissive = emissiveColor;
#ifdef HAS_EMISSIVE_MAP
emissive *= texture2D(emissiveMap, vary_texcoord0.xy).rgb;
#endif
#if DEBUG_BASIC
col.rgb = vec3( 1, 0, 1 );
#endif
#if DEBUG_VERTEX
col.rgb = vertex_color.rgb;
#endif
#if DEBUG_NORMAL
col.rgb = vary_normal;
#endif
#if DEBUG_POSITION
col.rgb = vary_position.xyz;
#endif
frag_data[0] = vec4(col, 0.0);
frag_data[1] = vec4(spec.rgb, vertex_color.a); // Occlusion, Roughness, Metal
frag_data[2] = vec4(encode_normal(tnorm), vertex_color.a, GBUFFER_FLAG_HAS_PBR); // normal, environment intensity, flags
frag_data[3] = vec4(emissive,0); // Emissive
}
|
