8 changed files with 425 additions and 411 deletions
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+2 -0src/client/shaders/baseLattice.ts
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+2 -0src/client/shaders/baseRaymarching.ts
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+205 -204src/client/shaders/collapse.ts
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+2 -0src/client/shaders/droplets.ts
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+3 -1src/client/shaders/inception.ts
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+2 -0src/client/shaders/menstom.ts
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+207 -206src/client/shaders/torus.ts
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+2 -0src/client/shaders/triangle.ts
src/client/shaders/baseLattice.js → src/client/shaders/baseLattice.ts
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| @@ -1,3 +1,4 @@ | |||
| /* eslint-disable */ | |||
| export default `#define MAX_STEPS 1000 | |||
| #define MAX_DIST 500. | |||
| #define E 0.000001 | |||
| @@ -104,3 +105,4 @@ void mainImage( out vec4 fragColor, in vec2 fragCoord ) | |||
| //col = myvec; | |||
| fragColor = vec4(col,1.0); | |||
| }`; | |||
| /* eslint-enable */ | |||
src/client/shaders/baseRaymarching.js → src/client/shaders/baseRaymarching.ts
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| @@ -1,3 +1,4 @@ | |||
| /* eslint-disable */ | |||
| export default `#define MAX_STEPS 1280 | |||
| #define MAX_DIST 1280. | |||
| #define E 0.00001 | |||
| @@ -75,3 +76,4 @@ void mainImage( out vec4 fragColor, in vec2 fragCoord ) { | |||
| col += vec3(dif); | |||
| fragColor = vec4(col, 1.0); | |||
| }`; | |||
| /* eslint-enable */ | |||
src/client/shaders/collapse.js → src/client/shaders/collapse.ts
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| @@ -1,204 +1,205 @@ | |||
| export default ` | |||
| #define MAX_STEPS 1280 | |||
| #define MAX_DIST 1280. | |||
| #define E 0.01 | |||
| #define PI 3.141592 | |||
| #define MYTIME iTime * 1. | |||
| // Turn to 1 to activate displacement mapping | |||
| #define DISPLACEMENT_MAPPING 1 | |||
| vec3 rotX(vec3 v, float a) | |||
| { | |||
| return vec3(v.x, v.y * cos(a) - v.z * sin(a), v.y * sin(a) + v.z * cos(a)); | |||
| } | |||
| vec3 rotY(vec3 v, float a) | |||
| { | |||
| return vec3(v.x * cos(a) + v.z * sin(a), v.y, v.z * cos(a) - v.x * sin(a)); | |||
| } | |||
| vec3 rotZ(vec3 v, float a) | |||
| { | |||
| return vec3(v.x * cos(a) - v.y * sin(a), v.x * sin(a) + v.y * cos(a), v.z); | |||
| } | |||
| vec3 modSDF(vec3 p, vec3 c) | |||
| { | |||
| return mod(p + 0.5 * c, c) - 0.5 * c; | |||
| } | |||
| vec3 modSDFlim( in vec3 p, in float c, in vec3 l) | |||
| { | |||
| return p-c*vec3(clamp(floor(p.x/c + 0.5),-l.x,l.x), clamp(floor(p.y/c + 0.5),-l.y,l.y), clamp(floor(p.z/c + 0.5),-l.z,l.z)); | |||
| } | |||
| vec3 twistSDF(in vec3 p, float k ) | |||
| { | |||
| float c = cos(k*p.y); | |||
| float s = sin(k*p.y); | |||
| mat2 m = mat2(c,-s,s,c); | |||
| vec3 q = vec3(m*p.xz,p.y); | |||
| return q; | |||
| } | |||
| float sdfBox( vec3 p, vec3 b ) | |||
| { | |||
| vec3 q = abs(p) - b; | |||
| return length(max(q,0.0)) + min(max(q.x,max(q.y,q.z)),0.0); | |||
| } | |||
| // blackbody by aiekick : https://www.shadertoy.com/view/lttXDn | |||
| // -------------blackbody----------------- // | |||
| // return color from temperature | |||
| //http://www.physics.sfasu.edu/astro/color/blackbody.html | |||
| //http://www.vendian.org/mncharity/dir3/blackbody/ | |||
| //http://www.vendian.org/mncharity/dir3/blackbody/UnstableURLs/bbr_color.html | |||
| vec3 blackbody(float Temp) | |||
| { | |||
| vec3 col = vec3(255.); | |||
| col.x = 56100000. * pow(Temp,(-3. / 2.)) + 148.; | |||
| col.y = 100.04 * log(Temp) - 623.6; | |||
| if (Temp > 6500.) col.y = 35200000. * pow(Temp,(-3. / 2.)) + 184.; | |||
| col.z = 194.18 * log(Temp) - 1448.6; | |||
| col = clamp(col, 0., 255.)/255.; | |||
| if (Temp < 1000.) col *= Temp/1000.; | |||
| return col; | |||
| } | |||
| // -------------blackbody----------------- // | |||
| float scene(vec3 p) | |||
| { | |||
| float d = 10000.; | |||
| float bd1 = sdfBox( | |||
| twistSDF( | |||
| modSDFlim( | |||
| twistSDF(p - vec3(0., 12., 0.), smoothstep(0.30, 0.20, abs(sin(MYTIME))) * 0.02), | |||
| 12., vec3(1. + smoothstep(0.45, 0.55, abs(sin(MYTIME))) * floor(abs(mod(MYTIME / (PI), 16.) - 8.)), 1. + smoothstep(0.45, 0.55, abs(sin(MYTIME))) * floor(abs(mod(MYTIME / (PI), 16.) - 8.)), 1. + smoothstep(0.45, 0.55, abs(sin(MYTIME))))), smoothstep(0.70, 0.80, abs(sin(MYTIME))) * -0.1), | |||
| vec3(4. + smoothstep(0.25, 0.75, abs(sin(MYTIME * 2.))),4. + smoothstep(0.25, 0.75, abs(sin(MYTIME * 2.))),4. + smoothstep(0.25, 0.75, abs(sin(MYTIME * 2.))))); | |||
| if (DISPLACEMENT_MAPPING == 1) | |||
| bd1 += sin(p.x / 2. * abs(mod(iTime, 6.) - 3.)) * 1. * sin(p.y / 2. * abs(mod(iTime, 6.) - 3.)) * 1. * sin(p.z / 2. * abs(mod(iTime, 6.) - 3.)) * 1.; | |||
| float bd2 = sdfBox(modSDF(p - vec3(0., -24., 0.), vec3(10., 0., 10.)), vec3(4.5,4.5,4.5)) * 1.; | |||
| d = min(bd1, d); | |||
| d = min(bd2, d); | |||
| return d; | |||
| } | |||
| vec2 march(vec3 ro, vec3 rd) | |||
| { | |||
| float dO = 0.; | |||
| float mind = 10000.; | |||
| for (int steps = 0; steps < MAX_STEPS; steps++) | |||
| { | |||
| vec3 p = ro + rd * dO; | |||
| float dS = scene(p); | |||
| if (steps == 3) | |||
| mind = dS; | |||
| dO += dS; | |||
| if (dS < E || dO > MAX_DIST) | |||
| break; | |||
| } | |||
| return vec2(dO, mind); | |||
| } | |||
| vec3 normal(vec3 p) | |||
| { | |||
| float d = scene(p); | |||
| vec2 e = vec2(0.001, 0); | |||
| vec3 n = d - vec3( | |||
| scene(p - e.xyy), | |||
| scene(p - e.yxy), | |||
| scene(p - e.yyx)); | |||
| return (normalize(n)); | |||
| } | |||
| float light(vec3 p, vec3 n) | |||
| { | |||
| vec3 lightPos = vec3(-250. * sin(MYTIME), 75., -250. * cos(MYTIME)); | |||
| vec3 l = normalize(lightPos - p); | |||
| float dif = clamp(dot(l, n), 0., 1.); | |||
| //vec2 d = march(p+n*E * 30., l); | |||
| //if (d.x < length(lightPos - p)) | |||
| // dif *= 0.1; | |||
| return (dif*0.3); | |||
| } | |||
| void mainImage( out vec4 fragColor, in vec2 fragCoord ) | |||
| { | |||
| vec2 uv = ((fragCoord - .5 * iResolution.xy) / iResolution.y); | |||
| vec3 ro = vec3(-235. * sin(iTime / 2.), 75. + sin(iTime / 2.) * 15., -235. * cos(iTime / 2.)); | |||
| vec3 rd = normalize(vec3(uv.x, uv.y, 1.)); | |||
| rd = rotX(rd, PI /8.); | |||
| rd = rotY(rd, iTime / 2.); | |||
| vec2 d = march(ro, rd); | |||
| vec3 p = ro + rd * d.x; | |||
| vec3 n = normal(p); | |||
| p += n * E * 10.; | |||
| float dif = light(p, n); | |||
| vec3 col = vec3(0); | |||
| if (d.x < MAX_DIST * 0.9) | |||
| { | |||
| col = blackbody(d.y* (p.y + 19.2) * 2. * (50. - abs(mod(p.x * p.z / 30. + 25. + MYTIME * 50., 100.) - 50.))); | |||
| col.xyz = col.zyx; | |||
| col.xy *= 0.5; | |||
| col.x *= uv.x; | |||
| col.y *= uv.y; | |||
| if (col.z > 0.001) | |||
| { | |||
| col = 0.5 * (1. - col); | |||
| col = vec3(col.z, col.z, (col.x + col.y) / 2.); | |||
| col.x = col.x / 2. + col.z * uv.x; | |||
| col.y = col.y / 2. + col.z * uv.y; | |||
| } | |||
| col /= 2.; | |||
| } | |||
| col += vec3(dif / 2.,dif / 2., dif / 2.); | |||
| vec3 rr = rd - (2. * n * (dot(rd, n))); | |||
| vec2 d2 = march(p, rr); | |||
| vec3 p2 = p + rr * d2.x; | |||
| vec3 n2 = normal(p2); | |||
| dif = light(p2, n2); | |||
| if (d2.x < MAX_DIST * 0.9) | |||
| { | |||
| vec3 col2 = blackbody(d2.y* (p2.y + 19.2) * 2. * (50. - abs(mod(p2.x * p2.z / 30. + 25. + MYTIME * 50., 100.) - 50.))); | |||
| col2.xyz = col2.zyx; | |||
| col2.xy *= 0.5; | |||
| col2.x *= uv.x; | |||
| col2.y *= uv.y; | |||
| if (col2.z > 0.001) | |||
| { | |||
| col2 = 0.5 * (1. - col2); | |||
| col2 = vec3(col.z, col2.z, (col2.x + col2.y) / 2.); | |||
| col2.x = col2.x / 2. + col2.z * uv.x; | |||
| col2.y = col2.y / 2. + col2.z * uv.y; | |||
| } | |||
| col2 /= 2.; | |||
| col += col2; | |||
| } | |||
| if (d.x < MAX_DIST * 0.9) | |||
| { | |||
| vec3 col2 = blackbody(d2.y* (p.y + 19.2) * 2. * (50. - abs(mod(p.x * p.z / 30. + 25. + MYTIME * 50., 100.) - 50.))); | |||
| col += col2.yxz; | |||
| } | |||
| if (d2.x < MAX_DIST * 0.9) | |||
| { | |||
| vec3 col2 = blackbody(d2.y* (p2.y + 19.2) * 2. * (50. - abs(mod(p2.x * p2.z / 30. + 25. + MYTIME * 50., 100.) - 50.))); | |||
| col += col2.yxz; | |||
| } | |||
| col += vec3(dif / 2., dif / 2., dif / 2.); | |||
| //col = pow(col, vec3(0.454545)); | |||
| fragColor = vec4(col, 1.0); | |||
| } | |||
| ` | |||
| /* eslint-disable */ | |||
| export default ` | |||
| #define MAX_STEPS 1280 | |||
| #define MAX_DIST 1280. | |||
| #define E 0.01 | |||
| #define PI 3.141592 | |||
| #define MYTIME iTime * 1. | |||
| // Turn to 1 to activate displacement mapping | |||
| #define DISPLACEMENT_MAPPING 1 | |||
| vec3 rotX(vec3 v, float a) | |||
| { | |||
| return vec3(v.x, v.y * cos(a) - v.z * sin(a), v.y * sin(a) + v.z * cos(a)); | |||
| } | |||
| vec3 rotY(vec3 v, float a) | |||
| { | |||
| return vec3(v.x * cos(a) + v.z * sin(a), v.y, v.z * cos(a) - v.x * sin(a)); | |||
| } | |||
| vec3 rotZ(vec3 v, float a) | |||
| { | |||
| return vec3(v.x * cos(a) - v.y * sin(a), v.x * sin(a) + v.y * cos(a), v.z); | |||
| } | |||
| vec3 modSDF(vec3 p, vec3 c) | |||
| { | |||
| return mod(p + 0.5 * c, c) - 0.5 * c; | |||
| } | |||
| vec3 modSDFlim( in vec3 p, in float c, in vec3 l) | |||
| { | |||
| return p-c*vec3(clamp(floor(p.x/c + 0.5),-l.x,l.x), clamp(floor(p.y/c + 0.5),-l.y,l.y), clamp(floor(p.z/c + 0.5),-l.z,l.z)); | |||
| } | |||
| vec3 twistSDF(in vec3 p, float k ) | |||
| { | |||
| float c = cos(k*p.y); | |||
| float s = sin(k*p.y); | |||
| mat2 m = mat2(c,-s,s,c); | |||
| vec3 q = vec3(m*p.xz,p.y); | |||
| return q; | |||
| } | |||
| float sdfBox( vec3 p, vec3 b ) | |||
| { | |||
| vec3 q = abs(p) - b; | |||
| return length(max(q,0.0)) + min(max(q.x,max(q.y,q.z)),0.0); | |||
| } | |||
| // blackbody by aiekick : https://www.shadertoy.com/view/lttXDn | |||
| // -------------blackbody----------------- // | |||
| // return color from temperature | |||
| //http://www.physics.sfasu.edu/astro/color/blackbody.html | |||
| //http://www.vendian.org/mncharity/dir3/blackbody/ | |||
| //http://www.vendian.org/mncharity/dir3/blackbody/UnstableURLs/bbr_color.html | |||
| vec3 blackbody(float Temp) | |||
| { | |||
| vec3 col = vec3(255.); | |||
| col.x = 56100000. * pow(Temp,(-3. / 2.)) + 148.; | |||
| col.y = 100.04 * log(Temp) - 623.6; | |||
| if (Temp > 6500.) col.y = 35200000. * pow(Temp,(-3. / 2.)) + 184.; | |||
| col.z = 194.18 * log(Temp) - 1448.6; | |||
| col = clamp(col, 0., 255.)/255.; | |||
| if (Temp < 1000.) col *= Temp/1000.; | |||
| return col; | |||
| } | |||
| // -------------blackbody----------------- // | |||
| float scene(vec3 p) | |||
| { | |||
| float d = 10000.; | |||
| float bd1 = sdfBox( | |||
| twistSDF( | |||
| modSDFlim( | |||
| twistSDF(p - vec3(0., 12., 0.), smoothstep(0.30, 0.20, abs(sin(MYTIME))) * 0.02), | |||
| 12., vec3(1. + smoothstep(0.45, 0.55, abs(sin(MYTIME))) * floor(abs(mod(MYTIME / (PI), 16.) - 8.)), 1. + smoothstep(0.45, 0.55, abs(sin(MYTIME))) * floor(abs(mod(MYTIME / (PI), 16.) - 8.)), 1. + smoothstep(0.45, 0.55, abs(sin(MYTIME))))), smoothstep(0.70, 0.80, abs(sin(MYTIME))) * -0.1), | |||
| vec3(4. + smoothstep(0.25, 0.75, abs(sin(MYTIME * 2.))),4. + smoothstep(0.25, 0.75, abs(sin(MYTIME * 2.))),4. + smoothstep(0.25, 0.75, abs(sin(MYTIME * 2.))))); | |||
| if (DISPLACEMENT_MAPPING == 1) | |||
| bd1 += sin(p.x / 2. * abs(mod(iTime, 6.) - 3.)) * 1. * sin(p.y / 2. * abs(mod(iTime, 6.) - 3.)) * 1. * sin(p.z / 2. * abs(mod(iTime, 6.) - 3.)) * 1.; | |||
| float bd2 = sdfBox(modSDF(p - vec3(0., -24., 0.), vec3(10., 0., 10.)), vec3(4.5,4.5,4.5)) * 1.; | |||
| d = min(bd1, d); | |||
| d = min(bd2, d); | |||
| return d; | |||
| } | |||
| vec2 march(vec3 ro, vec3 rd) | |||
| { | |||
| float dO = 0.; | |||
| float mind = 10000.; | |||
| for (int steps = 0; steps < MAX_STEPS; steps++) | |||
| { | |||
| vec3 p = ro + rd * dO; | |||
| float dS = scene(p); | |||
| if (steps == 3) | |||
| mind = dS; | |||
| dO += dS; | |||
| if (dS < E || dO > MAX_DIST) | |||
| break; | |||
| } | |||
| return vec2(dO, mind); | |||
| } | |||
| vec3 normal(vec3 p) | |||
| { | |||
| float d = scene(p); | |||
| vec2 e = vec2(0.001, 0); | |||
| vec3 n = d - vec3( | |||
| scene(p - e.xyy), | |||
| scene(p - e.yxy), | |||
| scene(p - e.yyx)); | |||
| return (normalize(n)); | |||
| } | |||
| float light(vec3 p, vec3 n) | |||
| { | |||
| vec3 lightPos = vec3(-250. * sin(MYTIME), 75., -250. * cos(MYTIME)); | |||
| vec3 l = normalize(lightPos - p); | |||
| float dif = clamp(dot(l, n), 0., 1.); | |||
| //vec2 d = march(p+n*E * 30., l); | |||
| //if (d.x < length(lightPos - p)) | |||
| // dif *= 0.1; | |||
| return (dif*0.3); | |||
| } | |||
| void mainImage( out vec4 fragColor, in vec2 fragCoord ) | |||
| { | |||
| vec2 uv = ((fragCoord - .5 * iResolution.xy) / iResolution.y); | |||
| vec3 ro = vec3(-235. * sin(iTime / 2.), 75. + sin(iTime / 2.) * 15., -235. * cos(iTime / 2.)); | |||
| vec3 rd = normalize(vec3(uv.x, uv.y, 1.)); | |||
| rd = rotX(rd, PI /8.); | |||
| rd = rotY(rd, iTime / 2.); | |||
| vec2 d = march(ro, rd); | |||
| vec3 p = ro + rd * d.x; | |||
| vec3 n = normal(p); | |||
| p += n * E * 10.; | |||
| float dif = light(p, n); | |||
| vec3 col = vec3(0); | |||
| if (d.x < MAX_DIST * 0.9) | |||
| { | |||
| col = blackbody(d.y* (p.y + 19.2) * 2. * (50. - abs(mod(p.x * p.z / 30. + 25. + MYTIME * 50., 100.) - 50.))); | |||
| col.xyz = col.zyx; | |||
| col.xy *= 0.5; | |||
| col.x *= uv.x; | |||
| col.y *= uv.y; | |||
| if (col.z > 0.001) | |||
| { | |||
| col = 0.5 * (1. - col); | |||
| col = vec3(col.z, col.z, (col.x + col.y) / 2.); | |||
| col.x = col.x / 2. + col.z * uv.x; | |||
| col.y = col.y / 2. + col.z * uv.y; | |||
| } | |||
| col /= 2.; | |||
| } | |||
| col += vec3(dif / 2.,dif / 2., dif / 2.); | |||
| vec3 rr = rd - (2. * n * (dot(rd, n))); | |||
| vec2 d2 = march(p, rr); | |||
| vec3 p2 = p + rr * d2.x; | |||
| vec3 n2 = normal(p2); | |||
| dif = light(p2, n2); | |||
| if (d2.x < MAX_DIST * 0.9) | |||
| { | |||
| vec3 col2 = blackbody(d2.y* (p2.y + 19.2) * 2. * (50. - abs(mod(p2.x * p2.z / 30. + 25. + MYTIME * 50., 100.) - 50.))); | |||
| col2.xyz = col2.zyx; | |||
| col2.xy *= 0.5; | |||
| col2.x *= uv.x; | |||
| col2.y *= uv.y; | |||
| if (col2.z > 0.001) | |||
| { | |||
| col2 = 0.5 * (1. - col2); | |||
| col2 = vec3(col.z, col2.z, (col2.x + col2.y) / 2.); | |||
| col2.x = col2.x / 2. + col2.z * uv.x; | |||
| col2.y = col2.y / 2. + col2.z * uv.y; | |||
| } | |||
| col2 /= 2.; | |||
| col += col2; | |||
| } | |||
| if (d.x < MAX_DIST * 0.9) | |||
| { | |||
| vec3 col2 = blackbody(d2.y* (p.y + 19.2) * 2. * (50. - abs(mod(p.x * p.z / 30. + 25. + MYTIME * 50., 100.) - 50.))); | |||
| col += col2.yxz; | |||
| } | |||
| if (d2.x < MAX_DIST * 0.9) | |||
| { | |||
| vec3 col2 = blackbody(d2.y* (p2.y + 19.2) * 2. * (50. - abs(mod(p2.x * p2.z / 30. + 25. + MYTIME * 50., 100.) - 50.))); | |||
| col += col2.yxz; | |||
| } | |||
| col += vec3(dif / 2., dif / 2., dif / 2.); | |||
| //col = pow(col, vec3(0.454545)); | |||
| fragColor = vec4(col, 1.0); | |||
| }`; | |||
| /* eslint-enable */ | |||
src/client/shaders/droplets.js → src/client/shaders/droplets.ts
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| @@ -1,3 +1,4 @@ | |||
| /* eslint-disable */ | |||
| export default `#define MAX_STEPS 1280 | |||
| #define MAX_DIST 1024. | |||
| #define E 0.0001 | |||
| @@ -221,3 +222,4 @@ void mainImage( out vec4 fragColor, in vec2 fragCoord ) | |||
| } | |||
| fragColor = vec4(col, 1.0); | |||
| }`; | |||
| /* eslint-enable */ | |||
src/client/shaders/inception.js → src/client/shaders/inception.ts
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| @@ -1,3 +1,4 @@ | |||
| /* eslint-disable */ | |||
| export default ` | |||
| #define MAX_STEPS 1280 | |||
| #define MAX_DIST 128. | |||
| @@ -141,4 +142,5 @@ void mainImage( out vec4 fragColor, in vec2 fragCoord ) | |||
| // Output to screen | |||
| col = pow(col, vec3(0.454545)); | |||
| fragColor = vec4(col, 1.0); | |||
| }` | |||
| }`; | |||
| /* eslint-enable */ | |||
src/client/shaders/menstom.js → src/client/shaders/menstom.ts
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| @@ -1,3 +1,4 @@ | |||
| /* eslint-disable */ | |||
| export default `#define MAX_STEPS 1280 | |||
| #define MAX_DIST 1280. | |||
| #define E 0.00001 | |||
| @@ -228,3 +229,4 @@ void mainImage( out vec4 fragColor, in vec2 fragCoord ) | |||
| col += dif; | |||
| fragColor = vec4(col, 1.0); | |||
| }`; | |||
| /* eslint-enable */ | |||
src/client/shaders/torus.js → src/client/shaders/torus.ts
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| @@ -1,206 +1,207 @@ | |||
| export default ` | |||
| #define MAX_STEPS 12800 | |||
| #define MAX_DIST 128. | |||
| #define E 0.001 | |||
| #define PI 3.141592 | |||
| vec3 rotX(vec3 v, float a) | |||
| { | |||
| return vec3(v.x, v.y * cos(a) - v.z * sin(a), v.y * sin(a) + v.z * cos(a)); | |||
| } | |||
| vec3 rotY(vec3 v, float a) | |||
| { | |||
| return vec3(v.x * cos(a) + v.z * sin(a), v.y, v.z * cos(a) - v.x * sin(a)); | |||
| } | |||
| vec3 rotZ(vec3 v, float a) | |||
| { | |||
| return vec3(v.x * cos(a) - v.y * sin(a), v.x * sin(a) + v.y * cos(a), v.z); | |||
| } | |||
| vec3 modSDF(vec3 p, vec3 c) | |||
| { | |||
| return mod(p + 0.5 * c, c) - 0.5 * c; | |||
| } | |||
| vec3 modSDFlim( in vec3 p, in float c, in vec3 l) | |||
| { | |||
| return p-c*vec3(clamp(floor(p.x/c + 0.5),-l.x,l.x), clamp(floor(p.y/c + 0.5),-l.y,l.y), clamp(floor(p.z/c + 0.5),-l.z,l.z)); | |||
| } | |||
| vec3 elongateSDF(in vec3 p, in vec3 h ) | |||
| { | |||
| vec3 q = abs(p)-h; | |||
| return max(q,0.0) + min(max(q.x,max(q.y,q.z)), 0.0); | |||
| } | |||
| vec3 twistSDF(in vec3 p, float k ) | |||
| { | |||
| float c = cos(k*p.y); | |||
| float s = sin(k*p.y); | |||
| mat2 m = mat2(c,-s,s,c); | |||
| vec3 q = vec3(m*p.xz,p.y); | |||
| return q; | |||
| } | |||
| float sdfBox( vec3 p, vec3 b ) | |||
| { | |||
| vec3 q = abs(p) - b; | |||
| return length(max(q,0.0)) + min(max(q.x,max(q.y,q.z)),0.0); | |||
| } | |||
| float sdfTorus(vec3 p, vec2 r) | |||
| { | |||
| float x = length(p.xz) - r.x; | |||
| return length(vec2(x, p.y)) - r.y; | |||
| } | |||
| float sdfSphere(vec3 p, float r) | |||
| { | |||
| return length(p) - r; | |||
| } | |||
| // blackbody by aiekick : https://www.shadertoy.com/view/lttXDn | |||
| // -------------blackbody----------------- // | |||
| // return color from temperature | |||
| //http://www.physics.sfasu.edu/astro/color/blackbody.html | |||
| //http://www.vendian.org/mncharity/dir3/blackbody/ | |||
| //http://www.vendian.org/mncharity/dir3/blackbody/UnstableURLs/bbr_color.html | |||
| vec3 blackbody(float Temp) | |||
| { | |||
| vec3 col = vec3(255.); | |||
| col.x = 56100000. * pow(Temp,(-3. / 2.)) + 148.; | |||
| col.y = 100.04 * log(Temp) - 623.6; | |||
| if (Temp > 6500.) col.y = 35200000. * pow(Temp,(-3. / 2.)) + 184.; | |||
| col.z = 194.18 * log(Temp) - 1448.6; | |||
| col = clamp(col, 0., 255.)/255.; | |||
| if (Temp < 1000.) col *= Temp/1000.; | |||
| return col; | |||
| } | |||
| // -------------blackbody----------------- // | |||
| vec2 scene(vec3 p) | |||
| { | |||
| float d = 10000.; | |||
| float sd1 = 10000.; | |||
| //float td1 = sdfTorus(elongateSDF( | |||
| // twistSDF( | |||
| // rotX(p, PI / 2.), sin(iTime) * 1.5), vec3(1., 1.,sin(iTime) * 2. + 1.)) | |||
| // , vec2(abs(sin(iTime * 0.3723)) * 2. + 1.2, 0.2)) | |||
| // + 0.1 * sin(p.x * 20.) * sin(p.y * 20.) * sin(p.z * 20.); | |||
| float td1 = sdfTorus( | |||
| twistSDF( | |||
| rotX(p, PI / 2.), sin(iTime) * 1.5) | |||
| , vec2(abs(sin(iTime * 0.3723)) * 2. + 1.2, 0.2)) | |||
| + 0.1 * sin(p.x * 20.) * sin(p.y * 20.) * sin(p.z * 20.); | |||
| //float td1 = 10000.; | |||
| //float td2 = sdfTorus(twistSDF(rotX(p, PI / 2.), cos(iTime) * 3.), vec2(abs(sin(iTime * 0.3723)) * 1. + 0.2, 0.1)) | |||
| // + 0.1 * sin(p.x * 20.) * sin(p.y * 20.) * sin(p.z * 20.); | |||
| float td2 = 10000.; | |||
| td2 = sdfTorus( | |||
| twistSDF( | |||
| rotX(p, PI / 2.), cos(iTime) * 1.5) | |||
| , vec2(abs(sin(iTime * 0.3723)) * 2. + 2.2, 0.2)) | |||
| + 0.1 * sin(p.x * 20.) * sin(p.y * 20.) * sin(p.z * 20.); | |||
| //float td1 = 10000.; | |||
| sd1 = sdfSphere(p - vec3(0.,0.,0.),abs(sin(iTime * 0.3723)) * 2. + 0.4) * 0.19; | |||
| td1 *= 0.2; | |||
| td2 *= 0.2; | |||
| d = min(td1, d); | |||
| d = min(td2, d); | |||
| d = min(sd1, d); | |||
| if (sd1 > d - E && sd1 < d + E) | |||
| return vec2(d, 1.); | |||
| if ((td1 > d - E && td1 < d + E) || (td2 > d - E && td2 < d + E)) | |||
| return vec2(d, 2.); | |||
| return vec2(d, -1.); | |||
| } | |||
| vec3 march(vec3 ro, vec3 rd) | |||
| { | |||
| float dO = 0.; | |||
| float mind = 10000.; | |||
| float object = -1.; | |||
| for (int steps = 0; steps < MAX_STEPS; steps++) | |||
| { | |||
| vec3 p = ro + rd * dO; | |||
| vec2 dS = scene(p); | |||
| object = dS.y; | |||
| if (dS.x < mind) | |||
| mind = dS.x; | |||
| dO += dS.x; | |||
| if (dS.x < E || dO > MAX_DIST) | |||
| break; | |||
| } | |||
| return vec3(dO, mind, object); | |||
| } | |||
| vec3 normal(vec3 p) | |||
| { | |||
| vec2 d = scene(p); | |||
| vec2 e = vec2(0.0001, 0); | |||
| vec3 n = d.x - vec3( | |||
| scene(p - e.xyy).x, | |||
| scene(p - e.yxy).x, | |||
| scene(p - e.yyx).x); | |||
| return (normalize(n)); | |||
| } | |||
| float light(vec3 p, vec3 n) | |||
| { | |||
| vec3 lightPos = vec3(-12. * sin(iTime), 0., -12. * cos(iTime)); | |||
| vec3 l = normalize(lightPos - p); | |||
| float dif = clamp(dot(l, n), 0., 1.); | |||
| vec3 d = march(p+n, l); | |||
| if (d.x < length(lightPos - p)) | |||
| dif *= 0.1; | |||
| return (dif); | |||
| } | |||
| void mainImage( out vec4 fragColor, in vec2 fragCoord ) | |||
| { | |||
| vec3 col = vec3(0); | |||
| vec2 uv = ((fragCoord - .5 * iResolution.xy) / iResolution.y); | |||
| vec3 ro = vec3(-12. * sin(iTime), 0., -12. * cos(iTime)); | |||
| vec3 rd = normalize(vec3(uv.x, uv.y, 1.)); | |||
| rd = rotY(rd, iTime); | |||
| vec3 d = march(ro, rd); | |||
| vec3 p = ro + rd * d.x; | |||
| vec3 n = normal(p); | |||
| p += n * E * 10.; | |||
| float dif = light(p, n); | |||
| if (d.z > 1. + E || d.z < 1. - E) | |||
| col = blackbody(d.y * 10000.); | |||
| if (d.x < MAX_DIST * 0.9) | |||
| { | |||
| if (d.z > 2. - E && d.z < 2. +E) | |||
| col += vec3(dif * abs(p.x - 0.5), dif * abs(p.y - 0.5), dif * abs(p.z - 0.5)); | |||
| vec3 rr = rd - (2. * n * (dot(rd, n))); | |||
| vec3 d2 = march(p, rr); | |||
| vec3 p2 = p + rr * d2.x; | |||
| vec3 n2 = normal(p2); | |||
| dif = light(p2, n2); | |||
| if (d.z > 1. - E && d.z < 1. + E) | |||
| { | |||
| col += vec3(dif * abs(p2.x - 0.5), dif * abs(p2.y - 0.5), dif * abs(p2.z - 0.5)); | |||
| } | |||
| } | |||
| col = pow(col, vec3(0.454545)); | |||
| fragColor = vec4(col, 1.); | |||
| } | |||
| ` | |||
| /* eslint-disable */ | |||
| export default ` | |||
| #define MAX_STEPS 12800 | |||
| #define MAX_DIST 128. | |||
| #define E 0.001 | |||
| #define PI 3.141592 | |||
| vec3 rotX(vec3 v, float a) | |||
| { | |||
| return vec3(v.x, v.y * cos(a) - v.z * sin(a), v.y * sin(a) + v.z * cos(a)); | |||
| } | |||
| vec3 rotY(vec3 v, float a) | |||
| { | |||
| return vec3(v.x * cos(a) + v.z * sin(a), v.y, v.z * cos(a) - v.x * sin(a)); | |||
| } | |||
| vec3 rotZ(vec3 v, float a) | |||
| { | |||
| return vec3(v.x * cos(a) - v.y * sin(a), v.x * sin(a) + v.y * cos(a), v.z); | |||
| } | |||
| vec3 modSDF(vec3 p, vec3 c) | |||
| { | |||
| return mod(p + 0.5 * c, c) - 0.5 * c; | |||
| } | |||
| vec3 modSDFlim( in vec3 p, in float c, in vec3 l) | |||
| { | |||
| return p-c*vec3(clamp(floor(p.x/c + 0.5),-l.x,l.x), clamp(floor(p.y/c + 0.5),-l.y,l.y), clamp(floor(p.z/c + 0.5),-l.z,l.z)); | |||
| } | |||
| vec3 elongateSDF(in vec3 p, in vec3 h ) | |||
| { | |||
| vec3 q = abs(p)-h; | |||
| return max(q,0.0) + min(max(q.x,max(q.y,q.z)), 0.0); | |||
| } | |||
| vec3 twistSDF(in vec3 p, float k ) | |||
| { | |||
| float c = cos(k*p.y); | |||
| float s = sin(k*p.y); | |||
| mat2 m = mat2(c,-s,s,c); | |||
| vec3 q = vec3(m*p.xz,p.y); | |||
| return q; | |||
| } | |||
| float sdfBox( vec3 p, vec3 b ) | |||
| { | |||
| vec3 q = abs(p) - b; | |||
| return length(max(q,0.0)) + min(max(q.x,max(q.y,q.z)),0.0); | |||
| } | |||
| float sdfTorus(vec3 p, vec2 r) | |||
| { | |||
| float x = length(p.xz) - r.x; | |||
| return length(vec2(x, p.y)) - r.y; | |||
| } | |||
| float sdfSphere(vec3 p, float r) | |||
| { | |||
| return length(p) - r; | |||
| } | |||
| // blackbody by aiekick : https://www.shadertoy.com/view/lttXDn | |||
| // -------------blackbody----------------- // | |||
| // return color from temperature | |||
| //http://www.physics.sfasu.edu/astro/color/blackbody.html | |||
| //http://www.vendian.org/mncharity/dir3/blackbody/ | |||
| //http://www.vendian.org/mncharity/dir3/blackbody/UnstableURLs/bbr_color.html | |||
| vec3 blackbody(float Temp) | |||
| { | |||
| vec3 col = vec3(255.); | |||
| col.x = 56100000. * pow(Temp,(-3. / 2.)) + 148.; | |||
| col.y = 100.04 * log(Temp) - 623.6; | |||
| if (Temp > 6500.) col.y = 35200000. * pow(Temp,(-3. / 2.)) + 184.; | |||
| col.z = 194.18 * log(Temp) - 1448.6; | |||
| col = clamp(col, 0., 255.)/255.; | |||
| if (Temp < 1000.) col *= Temp/1000.; | |||
| return col; | |||
| } | |||
| // -------------blackbody----------------- // | |||
| vec2 scene(vec3 p) | |||
| { | |||
| float d = 10000.; | |||
| float sd1 = 10000.; | |||
| //float td1 = sdfTorus(elongateSDF( | |||
| // twistSDF( | |||
| // rotX(p, PI / 2.), sin(iTime) * 1.5), vec3(1., 1.,sin(iTime) * 2. + 1.)) | |||
| // , vec2(abs(sin(iTime * 0.3723)) * 2. + 1.2, 0.2)) | |||
| // + 0.1 * sin(p.x * 20.) * sin(p.y * 20.) * sin(p.z * 20.); | |||
| float td1 = sdfTorus( | |||
| twistSDF( | |||
| rotX(p, PI / 2.), sin(iTime) * 1.5) | |||
| , vec2(abs(sin(iTime * 0.3723)) * 2. + 1.2, 0.2)) | |||
| + 0.1 * sin(p.x * 20.) * sin(p.y * 20.) * sin(p.z * 20.); | |||
| //float td1 = 10000.; | |||
| //float td2 = sdfTorus(twistSDF(rotX(p, PI / 2.), cos(iTime) * 3.), vec2(abs(sin(iTime * 0.3723)) * 1. + 0.2, 0.1)) | |||
| // + 0.1 * sin(p.x * 20.) * sin(p.y * 20.) * sin(p.z * 20.); | |||
| float td2 = 10000.; | |||
| td2 = sdfTorus( | |||
| twistSDF( | |||
| rotX(p, PI / 2.), cos(iTime) * 1.5) | |||
| , vec2(abs(sin(iTime * 0.3723)) * 2. + 2.2, 0.2)) | |||
| + 0.1 * sin(p.x * 20.) * sin(p.y * 20.) * sin(p.z * 20.); | |||
| //float td1 = 10000.; | |||
| sd1 = sdfSphere(p - vec3(0.,0.,0.),abs(sin(iTime * 0.3723)) * 2. + 0.4) * 0.19; | |||
| td1 *= 0.2; | |||
| td2 *= 0.2; | |||
| d = min(td1, d); | |||
| d = min(td2, d); | |||
| d = min(sd1, d); | |||
| if (sd1 > d - E && sd1 < d + E) | |||
| return vec2(d, 1.); | |||
| if ((td1 > d - E && td1 < d + E) || (td2 > d - E && td2 < d + E)) | |||
| return vec2(d, 2.); | |||
| return vec2(d, -1.); | |||
| } | |||
| vec3 march(vec3 ro, vec3 rd) | |||
| { | |||
| float dO = 0.; | |||
| float mind = 10000.; | |||
| float object = -1.; | |||
| for (int steps = 0; steps < MAX_STEPS; steps++) | |||
| { | |||
| vec3 p = ro + rd * dO; | |||
| vec2 dS = scene(p); | |||
| object = dS.y; | |||
| if (dS.x < mind) | |||
| mind = dS.x; | |||
| dO += dS.x; | |||
| if (dS.x < E || dO > MAX_DIST) | |||
| break; | |||
| } | |||
| return vec3(dO, mind, object); | |||
| } | |||
| vec3 normal(vec3 p) | |||
| { | |||
| vec2 d = scene(p); | |||
| vec2 e = vec2(0.0001, 0); | |||
| vec3 n = d.x - vec3( | |||
| scene(p - e.xyy).x, | |||
| scene(p - e.yxy).x, | |||
| scene(p - e.yyx).x); | |||
| return (normalize(n)); | |||
| } | |||
| float light(vec3 p, vec3 n) | |||
| { | |||
| vec3 lightPos = vec3(-12. * sin(iTime), 0., -12. * cos(iTime)); | |||
| vec3 l = normalize(lightPos - p); | |||
| float dif = clamp(dot(l, n), 0., 1.); | |||
| vec3 d = march(p+n, l); | |||
| if (d.x < length(lightPos - p)) | |||
| dif *= 0.1; | |||
| return (dif); | |||
| } | |||
| void mainImage( out vec4 fragColor, in vec2 fragCoord ) | |||
| { | |||
| vec3 col = vec3(0); | |||
| vec2 uv = ((fragCoord - .5 * iResolution.xy) / iResolution.y); | |||
| vec3 ro = vec3(-12. * sin(iTime), 0., -12. * cos(iTime)); | |||
| vec3 rd = normalize(vec3(uv.x, uv.y, 1.)); | |||
| rd = rotY(rd, iTime); | |||
| vec3 d = march(ro, rd); | |||
| vec3 p = ro + rd * d.x; | |||
| vec3 n = normal(p); | |||
| p += n * E * 10.; | |||
| float dif = light(p, n); | |||
| if (d.z > 1. + E || d.z < 1. - E) | |||
| col = blackbody(d.y * 10000.); | |||
| if (d.x < MAX_DIST * 0.9) | |||
| { | |||
| if (d.z > 2. - E && d.z < 2. +E) | |||
| col += vec3(dif * abs(p.x - 0.5), dif * abs(p.y - 0.5), dif * abs(p.z - 0.5)); | |||
| vec3 rr = rd - (2. * n * (dot(rd, n))); | |||
| vec3 d2 = march(p, rr); | |||
| vec3 p2 = p + rr * d2.x; | |||
| vec3 n2 = normal(p2); | |||
| dif = light(p2, n2); | |||
| if (d.z > 1. - E && d.z < 1. + E) | |||
| { | |||
| col += vec3(dif * abs(p2.x - 0.5), dif * abs(p2.y - 0.5), dif * abs(p2.z - 0.5)); | |||
| } | |||
| } | |||
| col = pow(col, vec3(0.454545)); | |||
| fragColor = vec4(col, 1.); | |||
| }`; | |||
| /* eslint-enable */ | |||
src/client/shaders/triangle.js → src/client/shaders/triangle.ts
View File
| @@ -1,3 +1,4 @@ | |||
| /* eslint-disable */ | |||
| export default `#define MAX_STEPS 1280 | |||
| #define MAX_DIST 128. | |||
| #define E 0.0001 | |||
| @@ -151,3 +152,4 @@ void mainImage( out vec4 fragColor, in vec2 fragCoord ) | |||
| col = pow(col, vec3(0.454545)); | |||
| fragColor = vec4(col, 1.0); | |||
| }`; | |||
| /* eslint-enable */ | |||