1 #ifndef SHADER_model_character_view_H
2 #define SHADER_model_character_view_H
3 static void shader_model_character_view_link(void);
4 static void shader_model_character_view_register(void);
5 static struct vg_shader _shader_model_character_view
= {
6 .name
= "model_character_view",
7 .link
= shader_model_character_view_link
,
11 "layout (location=0) in vec3 a_co;\n"
12 "layout (location=1) in vec3 a_norm;\n"
13 "layout (location=2) in vec2 a_uv;\n"
14 "layout (location=3) in vec4 a_colour;\n"
15 "layout (location=4) in vec4 a_weights;\n"
16 "layout (location=5) in ivec4 a_groups;\n"
19 "const float k_motion_lerp_amount = 0.01;\n"
23 "out vec3 aMotionVec0;\n"
24 "out vec3 aMotionVec1;\n"
26 "void vs_motion_out( vec4 vproj0, vec4 vproj1 )\n"
28 " // This magically solves some artifacting errors!\n"
30 " vproj1 = vproj0*(1.0-k_motion_lerp_amount) + vproj1*k_motion_lerp_amount;\n"
32 " aMotionVec0 = vec3( vproj0.xy, vproj0.w );\n"
33 " aMotionVec1 = vec3( vproj1.xy, vproj1.w );\n"
39 "uniform mat4x3 uTransforms[32];\n"
45 "out vec3 aWorldCo;\n"
49 " vec4 co_local = vec4( a_co, 1.0 );\n"
50 " vec3 co0 = uTransforms[ a_groups[0] ] * co_local;\n"
51 " vec3 co1 = uTransforms[ a_groups[1] ] * co_local;\n"
52 " vec3 co2 = uTransforms[ a_groups[2] ] * co_local;\n"
53 " vec3 n0 = mat3(uTransforms[ a_groups[0] ]) * a_norm;\n"
54 " vec3 n1 = mat3(uTransforms[ a_groups[1] ]) * a_norm;\n"
55 " vec3 n2 = mat3(uTransforms[ a_groups[2] ]) * a_norm;\n"
57 " vec3 world_pos = co0*a_weights[0] + co1*a_weights[1] + co2*a_weights[2];\n"
58 " vec3 world_normal = n0*a_weights[0] + n1*a_weights[1] + n2*a_weights[2];\n"
60 " gl_Position = uPv * vec4( world_pos, 1.0 );\n"
61 " aColour = a_colour;\n"
63 " aNorm = world_normal;\n"
65 " aWorldCo = world_pos;\n"
68 " aMotionVec0 = vec3(1.0);\n"
69 " aMotionVec1 = vec3(1.0);\n"
75 "uniform sampler2D uTexMain;\n"
76 "uniform vec3 uCamera;\n"
77 "uniform vec3 uBoard0;\n"
78 "uniform vec3 uBoard1;\n"
87 "layout (location = 0) out vec4 oColour;\n"
89 "layout (std140) uniform ub_world_lighting\n"
91 " vec4 g_light_colours[3];\n"
92 " vec4 g_light_directions[3];\n"
93 " vec4 g_ambient_colour;\n"
95 " vec4 g_water_plane;\n"
96 " vec4 g_depth_bounds;\n"
97 " float g_water_fog;\n"
98 " int g_light_count;\n"
99 " int g_light_preview;\n"
100 " int g_shadow_samples;\n"
102 " vec4 g_point_light_positions[32];\n"
103 " vec4 g_point_light_colours[32];\n"
106 "uniform sampler2D g_world_depth;\n"
108 "float world_depth_sample( vec3 pos )\n"
110 " vec2 depth_coord = (pos.xz - g_depth_bounds.xy) * g_depth_bounds.zw; \n"
111 " return texture( g_world_depth, depth_coord ).r;\n"
114 "float shadow_sample( vec3 vdir )\n"
116 " vec3 sample_pos = aWorldCo + vdir;\n"
117 " float height_sample = world_depth_sample( sample_pos );\n"
119 " float fdelta = height_sample - sample_pos.y;\n"
120 " return clamp( fdelta, 0.1, 0.2 )-0.1;\n"
123 "float sdLine( vec3 p, vec3 a, vec3 b )\n"
125 " vec3 pa = p - a;\n"
126 " vec3 ba = b - a;\n"
128 " float h = clamp( dot(pa,ba)/dot(ba,ba), 0.0, 1.0 );\n"
129 " return length( pa - ba*h );\n"
132 "vec3 apply_fog( vec3 vfrag, float fdist )\n"
134 " float dist = pow(fdist*0.0008,1.2);\n"
135 " return mix( vfrag, vec3(0.55,0.76,1.0), min( 1.0, dist ) );\n"
139 "// New lighting model\n"
141 "vec3 newlight_compute_ambient()\n"
143 " return g_ambient_colour.rgb;\n"
146 "float newlight_compute_sun_shadow()\n"
148 " if( g_shadow_samples == 0 )\n"
153 " float fspread = g_light_colours[0].w;\n"
154 " vec3 vdir = g_light_directions[0].xyz;\n"
155 " float flength = g_light_directions[0].w;\n"
157 " float famt = 0.0;\n"
158 " famt+=shadow_sample((vdir+vec3(-0.563, 0.550, 0.307)*fspread)*flength*0.1);\n"
159 " famt+=shadow_sample((vdir+vec3( 0.808, 0.686, 0.346)*fspread)*flength*0.2);\n"
160 " famt+=shadow_sample((vdir+vec3( 0.787, 0.074,-0.065)*fspread)*flength*0.3);\n"
161 " famt+=shadow_sample((vdir+vec3(-0.593, 0.071,-0.425)*fspread)*flength*0.4);\n"
162 " famt+=shadow_sample((vdir+vec3(-0.790,-0.933,-0.875)*fspread)*flength*0.5);\n"
163 " famt+=shadow_sample((vdir+vec3( 0.807,-0.690, 0.472)*fspread)*flength*0.6);\n"
164 " famt+=shadow_sample((vdir+vec3( 0.522,-0.379, 0.350)*fspread)*flength*0.7);\n"
165 " famt+=shadow_sample((vdir+vec3( 0.483, 0.201, 0.306)*fspread)*flength*0.8);\n"
167 " // player shadow\n"
168 " float dist_to_player = max( 0.0, sdLine( aWorldCo, uBoard0, uBoard1 )-0.1 );\n"
169 " float player_shadow = max( 1.0-dist_to_player*2.7, 0.0 );\n"
170 " player_shadow *= player_shadow*player_shadow*player_shadow;\n"
172 " return 1.0 - max( player_shadow*0.8, famt );\n"
175 "vec3 newlight_compute_world_diffuse( vec3 wnormal )\n"
177 " vec3 vtotal = g_ambient_colour.rgb;\n"
179 " for( int i=0; i<g_light_count; i++ )\n"
181 " vec3 vcolour = g_light_colours[i].rgb;\n"
182 " vec3 vdir = g_light_directions[i].xyz;\n"
184 " float flight = max(dot( vdir, wnormal )*0.75+0.25,0.0);\n"
185 " vtotal += vcolour*flight;\n"
191 "vec3 newlight_compute_sun_spec( vec3 wnormal, vec3 halfview, float fintensity )\n"
193 " vec3 vcolour = g_light_colours[0].rgb;\n"
194 " vec3 vdir = g_light_directions[0].xyz;\n"
196 " vec3 specdir = reflect( -vdir, wnormal );\n"
197 " float spec = pow(max(dot( halfview, specdir ), 0.0), 10.0);\n"
198 " return vcolour*spec*fintensity;\n"
201 "vec3 newlight_compute_quadratic( vec3 wnormal, vec3 halfview, \n"
202 " vec3 light_pos, vec3 light_colour )\n"
204 " vec3 light_delta = (light_pos-aWorldCo) * 10.0;\n"
206 " float quadratic = dot(light_delta,light_delta);\n"
207 " float attenuation = 1.0f/( 1.0f + quadratic );\n"
208 " attenuation *= max( 0.0, dot( normalize(light_delta), wnormal ) );\n"
210 " return light_colour*attenuation;\n"
215 "const float k_motion_lerp_amount = 0.01;\n"
219 "layout (location = 1) out vec2 oMotionVec;\n"
221 "in vec3 aMotionVec0;\n"
222 "in vec3 aMotionVec1;\n"
224 "void compute_motion_vectors()\n"
226 " // Write motion vectors\n"
227 " vec2 vmotion0 = aMotionVec0.xy / aMotionVec0.z;\n"
228 " vec2 vmotion1 = aMotionVec1.xy / aMotionVec1.z;\n"
230 " oMotionVec = (vmotion1-vmotion0) * (1.0/k_motion_lerp_amount);\n"
237 " compute_motion_vectors();\n"
239 " vec3 vfrag = texture( uTexMain, aUv ).rgb;\n"
242 " vec3 halfview = uCamera - aWorldCo;\n"
243 " float fdist = length( halfview );\n"
244 " halfview /= fdist;\n"
247 " vec3 qnorm = normalize(floor(aNorm*2.0)*0.5) + vec3(0.001,0.0,0.0);\n"
249 " vec3 total_light = newlight_compute_ambient();\n"
250 " vec3 world_light = newlight_compute_world_diffuse( qnorm );\n"
252 " float world_shadow = newlight_compute_sun_shadow();\n"
253 " total_light += world_light * world_shadow;\n"
255 " vfrag = apply_fog( vfrag * total_light, fdist );\n"
257 " float opacity = clamp( fdist*fdist, 0.0, 1.0 );\n"
258 " oColour = vec4(vfrag,opacity);\n"
263 static GLuint _uniform_model_character_view_uPv
;
264 static GLuint _uniform_model_character_view_uTransforms
;
265 static GLuint _uniform_model_character_view_uTexMain
;
266 static GLuint _uniform_model_character_view_uCamera
;
267 static GLuint _uniform_model_character_view_uBoard0
;
268 static GLuint _uniform_model_character_view_uBoard1
;
269 static GLuint _uniform_model_character_view_g_world_depth
;
270 static void shader_model_character_view_uPv(m4x4f m
){
271 glUniformMatrix4fv(_uniform_model_character_view_uPv
,1,GL_FALSE
,(float*)m
);
273 static void shader_model_character_view_uTexMain(int i
){
274 glUniform1i(_uniform_model_character_view_uTexMain
,i
);
276 static void shader_model_character_view_uCamera(v3f v
){
277 glUniform3fv(_uniform_model_character_view_uCamera
,1,v
);
279 static void shader_model_character_view_uBoard0(v3f v
){
280 glUniform3fv(_uniform_model_character_view_uBoard0
,1,v
);
282 static void shader_model_character_view_uBoard1(v3f v
){
283 glUniform3fv(_uniform_model_character_view_uBoard1
,1,v
);
285 static void shader_model_character_view_g_world_depth(int i
){
286 glUniform1i(_uniform_model_character_view_g_world_depth
,i
);
288 static void shader_model_character_view_register(void){
289 vg_shader_register( &_shader_model_character_view
);
291 static void shader_model_character_view_use(void){ glUseProgram(_shader_model_character_view
.id
); }
292 static void shader_model_character_view_link(void){
293 _uniform_model_character_view_uPv
= glGetUniformLocation( _shader_model_character_view
.id
, "uPv" );
294 _uniform_model_character_view_uTransforms
= glGetUniformLocation( _shader_model_character_view
.id
, "uTransforms" );
295 _uniform_model_character_view_uTexMain
= glGetUniformLocation( _shader_model_character_view
.id
, "uTexMain" );
296 _uniform_model_character_view_uCamera
= glGetUniformLocation( _shader_model_character_view
.id
, "uCamera" );
297 _uniform_model_character_view_uBoard0
= glGetUniformLocation( _shader_model_character_view
.id
, "uBoard0" );
298 _uniform_model_character_view_uBoard1
= glGetUniformLocation( _shader_model_character_view
.id
, "uBoard1" );
299 _uniform_model_character_view_g_world_depth
= glGetUniformLocation( _shader_model_character_view
.id
, "g_world_depth" );
301 #endif /* SHADER_model_character_view_H */