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
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
|
attribute vec3 attr_Position;
attribute vec3 attr_Normal;
#if defined(USE_VERTEX_ANIMATION)
attribute vec3 attr_Position2;
attribute vec3 attr_Normal2;
#endif
attribute vec4 attr_Color;
attribute vec4 attr_TexCoord0;
#if defined(USE_LIGHTMAP) || defined(USE_TCGEN)
attribute vec4 attr_TexCoord1;
#endif
uniform vec4 u_DiffuseTexMatrix;
uniform vec4 u_DiffuseTexOffTurb;
#if defined(USE_TCGEN) || defined(USE_RGBAGEN)
uniform vec3 u_LocalViewOrigin;
#endif
#if defined(USE_TCGEN)
uniform int u_TCGen0;
uniform vec3 u_TCGen0Vector0;
uniform vec3 u_TCGen0Vector1;
#endif
#if defined(USE_FOG)
uniform vec4 u_FogDistance;
uniform vec4 u_FogDepth;
uniform float u_FogEyeT;
uniform vec4 u_FogColorMask;
#endif
#if defined(USE_DEFORM_VERTEXES)
uniform int u_DeformGen;
uniform float u_DeformParams[5];
uniform float u_Time;
#endif
uniform mat4 u_ModelViewProjectionMatrix;
uniform vec4 u_BaseColor;
uniform vec4 u_VertColor;
#if defined(USE_RGBAGEN)
uniform int u_ColorGen;
uniform int u_AlphaGen;
uniform vec3 u_AmbientLight;
uniform vec3 u_DirectedLight;
uniform vec3 u_ModelLightDir;
uniform float u_PortalRange;
#endif
#if defined(USE_VERTEX_ANIMATION)
uniform float u_VertexLerp;
#endif
varying vec2 var_DiffuseTex;
#if defined(USE_LIGHTMAP)
varying vec2 var_LightTex;
#endif
varying vec4 var_Color;
#if defined(USE_DEFORM_VERTEXES)
vec3 DeformPosition(const vec3 pos, const vec3 normal, const vec2 st)
{
float base = u_DeformParams[0];
float amplitude = u_DeformParams[1];
float phase = u_DeformParams[2];
float frequency = u_DeformParams[3];
float spread = u_DeformParams[4];
if (u_DeformGen == DGEN_BULGE)
{
phase *= M_PI * 0.25 * st.x;
}
else // if (u_DeformGen <= DGEN_WAVE_INVERSE_SAWTOOTH)
{
phase += dot(pos.xyz, vec3(spread));
}
float value = phase + (u_Time * frequency);
float func;
if (u_DeformGen == DGEN_WAVE_SIN)
{
func = sin(value * 2.0 * M_PI);
}
else if (u_DeformGen == DGEN_WAVE_SQUARE)
{
func = sign(sin(value * 2.0 * M_PI));
}
else if (u_DeformGen == DGEN_WAVE_TRIANGLE)
{
func = 1.0 - abs(4.0 * fract(value + 0.25) - 2.0);
}
else if (u_DeformGen == DGEN_WAVE_SAWTOOTH)
{
func = fract(value);
}
else if (u_DeformGen == DGEN_WAVE_INVERSE_SAWTOOTH)
{
func = (1.0 - fract(value));
}
else if (u_DeformGen == DGEN_BULGE)
{
func = sin(value);
}
return pos + normal * (base + func * amplitude);
}
#endif
#if defined(USE_TCGEN)
vec2 GenTexCoords(int TCGen, vec3 position, vec3 normal, vec3 TCGenVector0, vec3 TCGenVector1)
{
vec2 tex = attr_TexCoord0.st;
if (TCGen == TCGEN_LIGHTMAP)
{
tex = attr_TexCoord1.st;
}
else if (TCGen == TCGEN_ENVIRONMENT_MAPPED)
{
vec3 viewer = normalize(u_LocalViewOrigin - position);
tex = -reflect(viewer, normal).yz * vec2(0.5, -0.5) + 0.5;
}
else if (TCGen == TCGEN_VECTOR)
{
tex = vec2(dot(position, TCGenVector0), dot(position, TCGenVector1));
}
return tex;
}
#endif
#if defined(USE_TCMOD)
vec2 ModTexCoords(vec2 st, vec3 position, vec4 texMatrix, vec4 offTurb)
{
float amplitude = offTurb.z;
float phase = offTurb.w;
vec2 st2 = vec2(dot(st, texMatrix.xz), dot(st, texMatrix.yw)) + offTurb.xy;
vec3 offsetPos = position / 1024.0;
offsetPos.x += offsetPos.z;
vec2 texOffset = sin((offsetPos.xy + vec2(phase)) * 2.0 * M_PI);
return st2 + texOffset * amplitude;
}
#endif
#if defined(USE_RGBAGEN)
vec4 CalcColor(vec3 position, vec3 normal)
{
vec4 color = u_VertColor * attr_Color + u_BaseColor;
if (u_ColorGen == CGEN_LIGHTING_DIFFUSE)
{
float incoming = clamp(dot(normal, u_ModelLightDir), 0.0, 1.0);
color.rgb = clamp(u_DirectedLight * incoming + u_AmbientLight, 0.0, 1.0);
}
vec3 viewer = u_LocalViewOrigin - position;
if (u_AlphaGen == AGEN_LIGHTING_SPECULAR)
{
vec3 lightDir = normalize(vec3(-960.0, 1980.0, 96.0) - position);
vec3 reflected = -reflect(lightDir, normal);
color.a = clamp(dot(reflected, normalize(viewer)), 0.0, 1.0);
color.a *= color.a;
color.a *= color.a;
}
else if (u_AlphaGen == AGEN_PORTAL)
{
color.a = clamp(length(viewer) / u_PortalRange, 0.0, 1.0);
}
return color;
}
#endif
#if defined(USE_FOG)
float CalcFog(vec3 position)
{
float s = (dot(position, u_FogDistance.xyz) + u_FogDistance.w) * 8.0;
float t = dot(position, u_FogDepth.xyz) + u_FogDepth.w;
float eyeOutside = step(0.0, -u_FogEyeT);
float fogged = step(eyeOutside, t);
t = max(t, 1e-6);
t *= fogged / (t - u_FogEyeT * eyeOutside);
return s * t;
}
#endif
void main()
{
#if defined(USE_VERTEX_ANIMATION)
vec3 position = mix(attr_Position, attr_Position2, u_VertexLerp);
vec3 normal = normalize(mix(attr_Normal, attr_Normal2, u_VertexLerp) * 2.0 - vec3(1.0));
#else
vec3 position = attr_Position;
vec3 normal = attr_Normal * 2.0 - vec3(1.0);
#endif
#if defined(USE_DEFORM_VERTEXES)
position = DeformPosition(position, normal, attr_TexCoord0.st);
#endif
gl_Position = u_ModelViewProjectionMatrix * vec4(position, 1.0);
#if defined(USE_TCGEN)
vec2 tex = GenTexCoords(u_TCGen0, position, normal, u_TCGen0Vector0, u_TCGen0Vector1);
#else
vec2 tex = attr_TexCoord0.st;
#endif
#if defined(USE_TCMOD)
var_DiffuseTex = ModTexCoords(tex, position, u_DiffuseTexMatrix, u_DiffuseTexOffTurb);
#else
var_DiffuseTex = tex;
#endif
#if defined(USE_LIGHTMAP)
var_LightTex = attr_TexCoord1.st;
#endif
#if defined(USE_RGBAGEN)
var_Color = CalcColor(position, normal);
#else
var_Color = u_VertColor * attr_Color + u_BaseColor;
#endif
#if defined(USE_FOG)
var_Color *= vec4(1.0) - u_FogColorMask * sqrt(clamp(CalcFog(position), 0.0, 1.0));
#endif
}
|
