X-Git-Url: https://harrygodden.com/git/?a=blobdiff_plain;f=shaders%2Fmodel_board_view.h;h=a50e9d586e9fb3e71ad7168dd693d882eca51df5;hb=e311bbe2fa903a7e2a922f202f389b799193195d;hp=3a1ba9ca2644818341f9f1dc79655054bf0c37b5;hpb=b405845ac2cc8eb8e227eb5785f48f5dde9b0f26;p=carveJwlIkooP6JGAAIwe30JlM.git diff --git a/shaders/model_board_view.h b/shaders/model_board_view.h index 3a1ba9c..a50e9d5 100644 --- a/shaders/model_board_view.h +++ b/shaders/model_board_view.h @@ -76,6 +76,11 @@ static struct vg_shader _shader_model_board_view = { "in vec3 aWorldCo;\n" "\n" "#line 1 1 \n" +"// :D\n" +"const float CLEARSKIES_LIGHT_DOT_MIN = 0.0;\n" +"\n" +"#line 11 0 \n" +"#line 1 2 \n" "layout (location = 0) out vec4 oColour;\n" "\n" "// OpenGL wiki: Recommends do not use vec3 because of drivers. hence the v4s...\n" @@ -127,7 +132,7 @@ static struct vg_shader _shader_model_board_view = { "//const vec3 SUN_COLOUR = vec3( 1.10, 0.89, 0.35 );\n" "\n" "const float SUN_ANGLE = 0.0001;\n" -"const float PI = 3.14159265;\n" +"const float PI = 3.14159265358979323846264;\n" "\n" "//struct world_info\n" "//{\n" @@ -139,6 +144,37 @@ static struct vg_shader _shader_model_board_view = { "// vec3 sun_dir;\n" "//};\n" "\n" +"vec3 rand33(vec3 p3)\n" +"{\n" +" p3 = fract(p3 * vec3(.1031, .1030, .0973));\n" +" p3 += dot(p3, p3.yxz+33.33);\n" +" return fract((p3.xxy + p3.yxx)*p3.zyx);\n" +"}\n" +"\n" +"float stars( vec3 rd, float rr, float size ){\n" +" vec3 co = rd * rr;\n" +"\n" +" float a = atan(co.y, length(co.xz)) + 4.0 * PI;\n" +"\n" +" float spaces = 1.0 / rr;\n" +" size = (rr * 0.0015) * fwidth(a) * 1000.0 * size;\n" +" a -= mod(a, spaces) - spaces * 0.5;\n" +"\n" +" float count = floor(sqrt(pow(rr, 2.0) * (1.0 - pow(sin(a), 2.0))) * 3.0);\n" +" \n" +" float plane = atan(co.z, co.x) + 4.0 * PI;\n" +" plane = plane - mod(plane, PI / count);\n" +"\n" +" vec2 delta = rand33(vec3(plane, a, 0.0)).xy;\n" +"\n" +" float level = sin(a + spaces * (delta.y - 0.5) * (1.0 - size)) * rr;\n" +" float ydist = sqrt(rr * rr - level * level);\n" +" float angle = plane + (PI * (delta.x * (1.0-size) + size * 0.5) / count);\n" +" vec3 center = vec3(cos(angle) * ydist, level, sin(angle) * ydist);\n" +" float star = smoothstep(size, 0.0, distance(center, co));\n" +" return star;\n" +"}\n" +"\n" "float luminance( vec3 v )\n" "{\n" " return dot( v, vec3(0.2126, 0.7152, 0.0722) );\n" @@ -173,8 +209,19 @@ static struct vg_shader _shader_model_board_view = { " \n" " vec3 sun_colour = mix( vec3(1.0), g_sunset_colour.rgb, g_sunset_phase*0.5 );\n" " sun_colour *= sun_shape;\n" +"\n" +" \n" +" float star = 0.0;\n" +" float star_blend = 10.0*max(0.0,(1.0-g_day_phase*2.0));\n" +"\n" +" if( star_blend > 0.001 ){\n" +" for( float j = 1.0; j <= 4.1; j += 1.0 ){\n" +" float m = mix(0.6, 0.9, smoothstep(1.0, 2.0, j));\n" +" star += stars( ray_dir, 1.94 * pow( 1.64, j ), m ) * (1.0/pow(4.0, j));\n" +" }\n" +" }\n" " \n" -" vec3 composite = sky_colour + sun_colour;\n" +" vec3 composite = sky_colour + sun_colour + star*star_blend;\n" " return composite;\n" "}\n" "\n" @@ -186,8 +233,9 @@ static struct vg_shader _shader_model_board_view = { " g_sunset_phase );\n" "\n" " vec3 sky_reflection = 0.5 * fresnel * reflect_colour;\n" -" vec3 light_sun = max(0.0,dot(normal,g_sun_dir.xyz)*0.75+0.25) \n" -" * g_sun_colour.rgb * g_day_phase;\n" +" vec3 light_sun = max( CLEARSKIES_LIGHT_DOT_MIN, \n" +" dot(normal,g_sun_dir.xyz)*0.75+0.25\n" +" ) * g_sun_colour.rgb * g_day_phase;\n" "\n" " float scaled_shadow = max( shadow, 1.0 - max(g_sun_dir.y,0.0) );\n" " vec3 ambient = mix( g_ambient_colour.rgb, g_sunset_ambient.rgb, \n" @@ -210,19 +258,15 @@ static struct vg_shader _shader_model_board_view = { " return world_depth_sample( pos ) - ref_depth;\n" "}\n" "\n" -"float shadow_sample( vec3 vdir )\n" -"{\n" -" vec3 sample_pos = aWorldCo + vdir;\n" -" float height_sample = world_depth_sample( sample_pos );\n" +"float shadow_sample( vec3 co ){\n" +" float height_sample = world_depth_sample( co );\n" "\n" -" float fdelta = height_sample - sample_pos.y;\n" +" float fdelta = height_sample - co.y;\n" " return clamp( fdelta, 0.2, 0.4 )-0.2;\n" "}\n" "\n" -"float newlight_compute_sun_shadow( vec3 dir )\n" -"{\n" -" if( g_shadow_samples == 0 )\n" -" {\n" +"float newlight_compute_sun_shadow( vec3 co, vec3 dir ){\n" +" if( g_shadow_samples == 0 ){\n" " return 1.0;\n" " }\n" "\n" @@ -230,15 +274,15 @@ static struct vg_shader _shader_model_board_view = { " float flength = g_shadow_length;\n" "\n" " float famt = 0.0;\n" -" famt += shadow_sample((dir+vec3(-0.56,0.55, 0.30)*fspread)*flength*0.1);\n" -" famt += shadow_sample((dir+vec3( 0.80,0.68, 0.34)*fspread)*flength*0.2);\n" -" famt += shadow_sample((dir+vec3( 0.78,0.07,-0.06)*fspread)*flength*0.3);\n" -" famt += shadow_sample((dir+vec3(-0.59,0.07,-0.42)*fspread)*flength*0.4);\n" +" famt += shadow_sample(co+(dir+vec3(-0.56,0.55, 0.30)*fspread)*flength*0.1);\n" +" famt += shadow_sample(co+(dir+vec3( 0.80,0.68, 0.34)*fspread)*flength*0.2);\n" +" famt += shadow_sample(co+(dir+vec3( 0.78,0.07,-0.06)*fspread)*flength*0.3);\n" +" famt += shadow_sample(co+(dir+vec3(-0.59,0.07,-0.42)*fspread)*flength*0.4);\n" "\n" -" //famt+=shadow_sample((dir+vec3(-0.790,-0.933,-0.875)*fspread)*flength*0.5);\n" -" //famt+=shadow_sample((dir+vec3( 0.807,-0.690, 0.472)*fspread)*flength*0.6);\n" -" //famt+=shadow_sample((dir+vec3( 0.522,-0.379, 0.350)*fspread)*flength*0.7);\n" -" //famt+=shadow_sample((dir+vec3( 0.483, 0.201, 0.306)*fspread)*flength*0.8);\n" +" //famt+=shadow_sample(co+(dir+vec3(-0.790,-0.933,-0.875)*fspread)*flength*0.5);\n" +" //famt+=shadow_sample(co+(dir+vec3( 0.807,-0.690, 0.472)*fspread)*flength*0.6);\n" +" //famt+=shadow_sample(co+(dir+vec3( 0.522,-0.379, 0.350)*fspread)*flength*0.7);\n" +" //famt+=shadow_sample(co+(dir+vec3( 0.483, 0.201, 0.306)*fspread)*flength*0.8);\n" "\n" " return 1.0 - famt;\n" "}\n" @@ -249,19 +293,11 @@ static struct vg_shader _shader_model_board_view = { " return pow(max(dot( halfview, specdir ), 0.0), exponent);\n" "}\n" "\n" -"vec3 scene_apply_fog( vec3 vfrag, vec3 colour, float fdist )\n" -"{\n" +"vec3 scene_apply_fog( vec3 vfrag, vec3 colour, float fdist ){\n" " float dist = pow(fdist*0.0010,0.78);\n" " return mix( vfrag, colour, min( 1.0, dist ) );\n" "}\n" "\n" -"vec3 rand33(vec3 p3)\n" -"{\n" -" p3 = fract(p3 * vec3(.1031, .1030, .0973));\n" -" p3 += dot(p3, p3.yxz+33.33);\n" -" return fract((p3.xxy + p3.yxx)*p3.zyx);\n" -"}\n" -"\n" "vec3 scene_calculate_light( int light_index, \n" " vec3 halfview, vec3 co, vec3 normal )\n" "{\n" @@ -326,8 +362,8 @@ static struct vg_shader _shader_model_board_view = { " float fdist = length(halfview);\n" " halfview /= fdist;\n" "\n" -" float world_shadow = newlight_compute_sun_shadow( g_sun_dir.xyz \n" -" * (1.0/(max(g_sun_dir.y,0.0)+0.2)) );\n" +" float world_shadow = newlight_compute_sun_shadow( \n" +" co, g_sun_dir.xyz * (1.0/(max(g_sun_dir.y,0.0)+0.2)) );\n" "\n" " vec3 total_light = clearskies_lighting( \n" " normal, min( light_mask, world_shadow ), halfview );\n" @@ -377,8 +413,8 @@ static struct vg_shader _shader_model_board_view = { " return scene_apply_fog( diffuse * total_light, fog_colour, fdist );\n" "}\n" "\n" -"#line 11 0 \n" -"#line 1 2 \n" +"#line 12 0 \n" +"#line 1 3 \n" "const float k_motion_lerp_amount = 0.01;\n" "\n" "#line 2 0 \n" @@ -397,8 +433,8 @@ static struct vg_shader _shader_model_board_view = { " oMotionVec = (vmotion1-vmotion0) * (1.0/k_motion_lerp_amount);\n" "}\n" "\n" -"#line 12 0 \n" -"#line 1 3 \n" +"#line 13 0 \n" +"#line 1 4 \n" "uniform sampler2D uTexSceneDepth;\n" "uniform vec3 uInverseRatioDepth;\n" "uniform vec3 uInverseRatioMain;\n" @@ -428,7 +464,88 @@ static struct vg_shader _shader_model_board_view = { " }\n" "}\n" "\n" -"#line 13 0 \n" +"#line 14 0 \n" +"\n" +"vec3 character_clearskies_lighting( vec3 normal, float shadow, vec3 halfview )\n" +"{\n" +" float fresnel = 1.0 - abs(dot(normal,halfview));\n" +"\n" +" vec3 reflect_colour = mix( g_daysky_colour.rgb, g_sunset_colour.rgb, \n" +" g_sunset_phase );\n" +"\n" +"\n" +" vec3 sky_reflection = 0.5 * fresnel * reflect_colour;\n" +" vec3 light_sun = max(0.0, dot(normal,g_sun_dir.xyz)*0.5+0.5) \n" +" * g_sun_colour.rgb * g_day_phase;\n" +"\n" +" float scaled_shadow = max( shadow, 1.0 - max(g_sun_dir.y,0.0) );\n" +" vec3 ambient = mix( g_ambient_colour.rgb, g_sunset_ambient.rgb, \n" +" g_sunset_phase );\n" +"\n" +" return ambient + (light_sun + sky_reflection) * shadow;\n" +"}\n" +"\n" +"vec3 character_compute_lighting( vec3 diffuse, vec3 normal, vec3 co,\n" +" float light_mask )\n" +"{\n" +" if( g_light_preview == 1 )\n" +" diffuse = vec3(0.75);\n" +"\n" +" // Lighting\n" +" vec3 halfview = uCamera - co;\n" +" float fdist = length(halfview);\n" +" halfview /= fdist;\n" +"\n" +" float world_shadow = newlight_compute_sun_shadow( \n" +" co, g_sun_dir.xyz * (1.0/(max(g_sun_dir.y,0.0)+0.2)) );\n" +"\n" +" vec3 total_light = character_clearskies_lighting( \n" +" normal, min( light_mask, world_shadow ), halfview );\n" +"\n" +" vec3 cube_coord = (co - g_cube_min.xyz) * g_cube_inv_range.xyz;\n" +" cube_coord = floor( cube_coord );\n" +"\n" +" if( g_debug_indices == 1 )\n" +" {\n" +" return rand33(cube_coord);\n" +" }\n" +"\n" +" if( g_debug_complexity == 1 )\n" +" {\n" +" ivec3 coord = ivec3( cube_coord );\n" +" uvec4 index_sample = texelFetch( uLightsIndex, coord, 0 );\n" +"\n" +" uint light_count = (index_sample.x & 0x3u) + (index_sample.y & 0x3u);\n" +" return vec3( float(light_count)*(1.0/6.0), 0.0, 0.5 );\n" +" }\n" +"\n" +" // FIXME: this coord should absolutely must be clamped!\n" +" \n" +" ivec3 coord = ivec3( cube_coord );\n" +" uvec4 index_sample = texelFetch( uLightsIndex, coord, 0 );\n" +"\n" +" total_light += \n" +" scene_calculate_packed_light_patch( index_sample.x,\n" +" halfview, co, normal ) \n" +" * light_mask;\n" +" total_light += \n" +" scene_calculate_packed_light_patch( index_sample.y,\n" +" halfview, co, normal )\n" +" * light_mask;\n" +"\n" +" // Take a section of the sky function to give us a matching fog colour\n" +"\n" +" vec3 fog_colour = clearskies_ambient( -halfview );\n" +" float sun_theta = dot( -halfview, g_sun_dir.xyz );\n" +" float sun_size = max( 0.0, sun_theta * 0.5 + 0.5 );\n" +" float sun_shape = sun_size * max(g_sun_dir.y,0.0) * 0.5;\n" +" \n" +" vec3 sun_colour = mix( vec3(1.0), g_sunset_colour.rgb, g_sunset_phase*0.5 );\n" +" sun_colour *= sun_shape;\n" +"\n" +" fog_colour += sun_colour;\n" +" return scene_apply_fog( diffuse * total_light, fog_colour, fdist );\n" +"}\n" "\n" "void main(){\n" " depth_compare_dither();\n" @@ -436,7 +553,7 @@ static struct vg_shader _shader_model_board_view = { "\n" " vec3 qnorm = aNorm;\n" " vec3 diffuse = texture( uTexMain, aUv ).rgb;\n" -" vec3 composite = world_compute_lighting( diffuse, qnorm, aWorldCo, 1.0 );\n" +" vec3 composite = character_compute_lighting( diffuse, qnorm, aWorldCo, 1.0 );\n" "\n" " float dist = distance( aWorldCo, uCamera ) - 0.08;\n" " float opacity = clamp( dist*dist, 0.0, 1.0 );\n"