Used HDR: https://drive.google.com/file/d/1Coe5zGEvHOFV8ZSP5MU3WLPBHrek_oaj/view
Source of the Noise_3D gizmo used for the shader: https://github.com/SpinVFX/spin_nuke_gizmos
PBR math mostly obtained from: https://learnopengl.com/PBR/Theory
Result: https://vimeo.com/349142600
| Gizmo { | |
| name Noise_3D | |
| inputs 2 | |
| help "Generate Noise in 3D space based on Position passes. It includes pre-made Position passes for some 3D primitives, or can use a custom pass. Uses a 4D noise internally so that the 4th dimension can be used to add a 'boiling' effect" | |
| addUserKnob {20 noise3d l "3D Noise"} | |
| addUserKnob {4 mapping l Mapping t "Generates a Noise based on a 3D shape, unfolded to fit into a UV plane.\n\nThe Custom P Input lets you input the shape of your choice. Using a pWorld pass as cutom P will generate a 3D noise as seen from the same camera as used to render the Pworld. Ensure an Alpha channel is present for Custom P." M {"Card (Flat)" Spherical "Cylindrical (Tile X)" "Cylinder 4D (Tile X and Y)" "Custom P Input" "" ""}} | |
| addUserKnob {26 ""} | |
| addUserKnob {41 translate T Axis_3D.translate} | |
| addUserKnob {41 rotate T Axis_3D.rotate} | |
| addUserKnob {41 scaling l scale T Axis_3D.scaling} | |
| addUserKnob {41 uniform_scale l "uniform scale" T Axis_3D.uniform_scale} | |
| addUserKnob {26 ""} | |
| addUserKnob {7 boiling t "Use this knob to animate the noise and create a 'boiling' effect without a visible 3D direction." R 0 10} | |
| addUserKnob {26 "" +STARTLINE} | |
| addUserKnob {4 type t "Choose between an fBm and Turbulent Noise model." M {fBm Turbulence ""}} | |
| addUserKnob {7 octaves R 0 10} | |
| octaves 5 | |
| addUserKnob {7 lacunarity R 0 10} | |
| lacunarity 2 | |
| addUserKnob {7 contrast} | |
| contrast 0.5 | |
| addUserKnob {7 gain} | |
| gain 0.5 | |
| addUserKnob {7 gamma} | |
| gamma 0.5 | |
| addUserKnob {26 spin_copyright_div l "" +STARTLINE} | |
| addUserKnob {26 spin_copyright l "" t "© <b>SPIN<span style=\"color:#b32026\">VFX</span></b>\nNoise_3D\nVersion 1.0\n2018" +STARTLINE T "<span style=\"color:#aaa;font-family:sans-serif;font-size:8pt\"><b>SPIN<span style=\"color:#b32026\">VFX</span></b> - Version 1.0 - 2018 - <a href=\"https://github.com/SpinVFX/spin_nuke_gizmos/\" style=\"color:#aaa\">Github Page</a></span>"} | |
| } | |
| Axis2 { | |
| inputs 0 | |
| translate {1 0 0} | |
| rotate {30 30 0} | |
| name Axis_3D | |
| xpos 534 | |
| ypos 170 | |
| } | |
| Input { | |
| inputs 0 | |
| name P | |
| label 1 | |
| xpos 205 | |
| ypos -58 | |
| number 1 | |
| } | |
| Remove { | |
| operation keep | |
| channels rgba | |
| name Remove1 | |
| xpos 205 | |
| ypos 17 | |
| } | |
| Dot { | |
| name Dot14 | |
| tile_color 0x9e3c6300 | |
| xpos 239 | |
| ypos 57 | |
| } | |
| set Nacd90f0 [stack 0] | |
| Dot { | |
| name Dot5 | |
| tile_color 0x9e3c6300 | |
| xpos 239 | |
| ypos 568 | |
| } | |
| push $Nacd90f0 | |
| Shuffle { | |
| alpha white | |
| name Shuffle2 | |
| label "in \[value in]-->out \[value out]" | |
| xpos 279 | |
| ypos 47 | |
| } | |
| Input { | |
| inputs 0 | |
| name img | |
| label 0 | |
| xpos 1077 | |
| ypos -389 | |
| } | |
| Dot { | |
| name Dot2 | |
| tile_color 0xcccccc00 | |
| xpos 1111 | |
| ypos -223 | |
| } | |
| Constant { | |
| inputs 0 | |
| channels rgb | |
| name Constant1 | |
| xpos 955 | |
| ypos -385 | |
| } | |
| Switch { | |
| inputs 2 | |
| which {{"\[exists parent.input0] "}} | |
| name Switch1 | |
| xpos 955 | |
| ypos -227 | |
| } | |
| Dot { | |
| name Dot3 | |
| tile_color 0xcccccc00 | |
| xpos 989 | |
| ypos -187 | |
| } | |
| set Nacf7e30 [stack 0] | |
| Dot { | |
| name Dot1 | |
| tile_color 0xcccccc00 | |
| xpos 418 | |
| ypos -187 | |
| } | |
| Crop { | |
| box {0 0 {width} {height}} | |
| crop false | |
| name Crop2 | |
| xpos 384 | |
| ypos -146 | |
| } | |
| Dot { | |
| name Dot8 | |
| tile_color 0xa57aaa00 | |
| xpos 418 | |
| ypos -64 | |
| } | |
| set Nad0c430 [stack 0] | |
| Dot { | |
| name Dot9 | |
| tile_color 0xa57aaa00 | |
| xpos 553 | |
| ypos -64 | |
| } | |
| set Nad10ee0 [stack 0] | |
| Dot { | |
| name Dot11 | |
| tile_color 0xa57aaa00 | |
| xpos 688 | |
| ypos -64 | |
| } | |
| set Nad15960 [stack 0] | |
| Dot { | |
| name Dot7 | |
| tile_color 0xa57aaa00 | |
| xpos 839 | |
| ypos -64 | |
| } | |
| Expression { | |
| temp_name0 lat | |
| temp_expr0 "y / height *360-180" | |
| temp_name1 lon | |
| temp_expr1 "x / width * 360-180" | |
| temp_name2 r | |
| temp_expr2 0.5 | |
| expr0 "(r * cos (0.017453292519943295769236907684886 * lon) +1)*1.5" | |
| expr1 "(r * cos (0.017453292519943295769236907684886 * lat) +1)*1.5" | |
| expr2 "(r * sin(0.017453292519943295769236907684886 * lon)+1)*1.5" | |
| expr3 "(r * sin(0.017453292519943295769236907684886 * lat)+1)*1.5" | |
| name Cylinder4D | |
| xpos 805 | |
| ypos -21 | |
| } | |
| Dot { | |
| name Dot15 | |
| tile_color 0xcccccc00 | |
| xpos 839 | |
| ypos 57 | |
| } | |
| push $Nad15960 | |
| Expression { | |
| temp_name0 lat | |
| temp_expr0 "y / height * 180- 90" | |
| temp_name1 lon | |
| temp_expr1 "x / width * 360-180" | |
| temp_name2 r | |
| temp_expr2 0.5 | |
| expr0 "(r * cos (0.017453292519943295769236907684886 * lon) +1)*1.5" | |
| expr1 y/height*3 | |
| expr2 "(r * sin(0.017453292519943295769236907684886 * lon)+1)*1.5" | |
| expr3 1 | |
| name CylinderP | |
| xpos 654 | |
| ypos -23 | |
| } | |
| Dot { | |
| name Dot13 | |
| tile_color 0xcccccc00 | |
| xpos 688 | |
| ypos 21 | |
| } | |
| push $Nad10ee0 | |
| Expression { | |
| temp_name0 lat | |
| temp_expr0 "y / height * 180- 90" | |
| temp_name1 lon | |
| temp_expr1 "x / width * 360-180" | |
| temp_name2 r | |
| temp_expr2 "cos(0.017453292519943295769236907684886 * lat)" | |
| expr0 "(r * cos (0.017453292519943295769236907684886 * lon) +1)*1.5" | |
| expr1 "(sin (0.017453292519943295769236907684886 * lat)+1)*1.5" | |
| expr2 "(r * sin(0.017453292519943295769236907684886 * lon)+1)*1.5" | |
| expr3 1 | |
| name SphereP | |
| xpos 519 | |
| ypos -21 | |
| } | |
| push $Nad0c430 | |
| Expression { | |
| expr0 x/350 | |
| expr1 y/350 | |
| expr2 0 | |
| expr3 1 | |
| name CardP | |
| xpos 384 | |
| ypos -21 | |
| } | |
| Switch { | |
| inputs 5 | |
| which {{parent.mapping}} | |
| name Switch3 | |
| xpos 384 | |
| ypos 53 | |
| } | |
| ColorMatrix { | |
| matrix { | |
| {{Axis_3D.world_matrix.0} {Axis_3D.world_matrix.1} {Axis_3D.world_matrix.2}} | |
| {{Axis_3D.world_matrix.4} {Axis_3D.world_matrix.5} {Axis_3D.world_matrix.6}} | |
| {{Axis_3D.world_matrix.8} {Axis_3D.world_matrix.9} {Axis_3D.world_matrix.10}} | |
| } | |
| name ColorMatrix1 | |
| xpos 384 | |
| ypos 186 | |
| } | |
| Add { | |
| channels rgba | |
| value {{Axis_3D.translate.x} {Axis_3D.translate.y} {Axis_3D.translate.z} {parent.boiling}} | |
| name Add1 | |
| xpos 384 | |
| ypos 229 | |
| } | |
| BlinkScript { | |
| recompileCount 27 | |
| ProgramGroup 1 | |
| KernelDescription "2 \"Noise4D\" iterate pixelWise d60f21004827daf93cc7aae3c8a9d35a464dc4075e83f5304202d888c93a31ad 2 \"src\" Read Point \"dst\" Write Point 5 \"octaves\" Int 1 CAAAAA== \"lacunarity\" Float 1 AAAAQA== \"amplitude\" Float 1 mpkZPw== \"gain\" Float 1 AAAAPw== \"mode\" Int 1 AAAAAA== 5 \"octaves\" 1 1 \"lacunarity\" 1 1 \"amplitude\" 1 1 \"gain\" 1 1 \"mode\" 1 1 0" | |
| kernelSource "//Based on https://github.com/Draradech/csworldgen/blob/master/simplexnoise.cpp\n//Ported by Mads Hagbarth Lund 2014\n//Modifications (fBm and Turbulence) by Erwan Leroy 2018 at Spin VFX\n\n/* Copyright (c) 2007-2012 Eliot Eshelman\n *\n * This program is free software: you can redistribute it and/or modify\n * it under the terms of the GNU General Public License as published by\n * the Free Software Foundation, either version 3 of the License, or\n * (at your option) any later version.\n *\n * This program is distributed in the hope that it will be useful,\n * but WITHOUT ANY WARRANTY; without even the implied warranty of\n * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n * GNU General Public License for more details.\n *\n * You should have received a copy of the GNU General Public License\n * along with this program. If not, see <http://www.gnu.org/licenses/>.\n *\n */\n\n\nint fastfloor( const float x ) \{ return x > 0 ? (int) x : (int) x - 1; \}\n\ninline float raw_noise_4d(const float4 coord)\n\{\n int simplex\[64]\[4] =\n \{\n \{0,1,2,3\},\{0,1,3,2\},\{0,0,0,0\},\{0,2,3,1\},\{0,0,0,0\},\{0,0,0,0\},\{0,0,0,0\},\{1,2,3,0\},\n \{0,2,1,3\},\{0,0,0,0\},\{0,3,1,2\},\{0,3,2,1\},\{0,0,0,0\},\{0,0,0,0\},\{0,0,0,0\},\{1,3,2,0\},\n \{0,0,0,0\},\{0,0,0,0\},\{0,0,0,0\},\{0,0,0,0\},\{0,0,0,0\},\{0,0,0,0\},\{0,0,0,0\},\{0,0,0,0\},\n \{1,2,0,3\},\{0,0,0,0\},\{1,3,0,2\},\{0,0,0,0\},\{0,0,0,0\},\{0,0,0,0\},\{2,3,0,1\},\{2,3,1,0\},\n \{1,0,2,3\},\{1,0,3,2\},\{0,0,0,0\},\{0,0,0,0\},\{0,0,0,0\},\{2,0,3,1\},\{0,0,0,0\},\{2,1,3,0\},\n \{0,0,0,0\},\{0,0,0,0\},\{0,0,0,0\},\{0,0,0,0\},\{0,0,0,0\},\{0,0,0,0\},\{0,0,0,0\},\{0,0,0,0\},\n \{2,0,1,3\},\{0,0,0,0\},\{0,0,0,0\},\{0,0,0,0\},\{3,0,1,2\},\{3,0,2,1\},\{0,0,0,0\},\{3,1,2,0\},\n \{2,1,0,3\},\{0,0,0,0\},\{0,0,0,0\},\{0,0,0,0\},\{3,1,0,2\},\{0,0,0,0\},\{3,2,0,1\},\{3,2,1,0\}\n \};\n\n int perm\[512] =\n \{\n 151,160,137,91,90,15,131,13,201,95,96,53,194,233,7,225,140,36,103,30,69,142,\n 8,99,37,240,21,10,23,190,6,148,247,120,234,75,0,26,197,62,94,252,219,203,117,\n 35,11,32,57,177,33,88,237,149,56,87,174,20,125,136,171,168,68,175,74,165,71,\n 134,139,48,27,166,77,146,158,231,83,111,229,122,60,211,133,230,220,105,92,41,\n 55,46,245,40,244,102,143,54,65,25,63,161,1,216,80,73,209,76,132,187,208, 89,\n 18,169,200,196,135,130,116,188,159,86,164,100,109,198,173,186,3,64,52,217,226,\n 250,124,123,5,202,38,147,118,126,255,82,85,212,207,206,59,227,47,16,58,17,182,\n 189,28,42,223,183,170,213,119,248,152,2,44,154,163,70,221,153,101,155,167,43,\n 172,9,129,22,39,253,19,98,108,110,79,113,224,232,178,185,112,104,218,246,97,\n 228,251,34,242,193,238,210,144,12,191,179,162,241,81,51,145,235,249,14,239,\n 107,49,192,214,31,181,199,106,157,184,84,204,176,115,121,50,45,127,4,150,254,\n 138,236,205,93,222,114,67,29,24,72,243,141,128,195,78,66,215,61,156,180,\n\n 151,160,137,91,90,15,131,13,201,95,96,53,194,233,7,225,140,36,103,30,69,142,\n 8,99,37,240,21,10,23,190,6,148,247,120,234,75,0,26,197,62,94,252,219,203,117,\n 35,11,32,57,177,33,88,237,149,56,87,174,20,125,136,171,168,68,175,74,165,71,\n 134,139,48,27,166,77,146,158,231,83,111,229,122,60,211,133,230,220,105,92,41,\n 55,46,245,40,244,102,143,54,65,25,63,161,1,216,80,73,209,76,132,187,208, 89,\n 18,169,200,196,135,130,116,188,159,86,164,100,109,198,173,186,3,64,52,217,226,\n 250,124,123,5,202,38,147,118,126,255,82,85,212,207,206,59,227,47,16,58,17,182,\n 189,28,42,223,183,170,213,119,248,152,2,44,154,163,70,221,153,101,155,167,43,\n 172,9,129,22,39,253,19,98,108,110,79,113,224,232,178,185,112,104,218,246,97,\n 228,251,34,242,193,238,210,144,12,191,179,162,241,81,51,145,235,249,14,239,\n 107,49,192,214,31,181,199,106,157,184,84,204,176,115,121,50,45,127,4,150,254,\n 138,236,205,93,222,114,67,29,24,72,243,141,128,195,78,66,215,61,156,180\n \};\n\n int grad4\[32]\[4]=\n \{\n \{0,1,1,1\}, \{0,1,1,-1\}, \{0,1,-1,1\}, \{0,1,-1,-1\},\n \{0,-1,1,1\}, \{0,-1,1,-1\}, \{0,-1,-1,1\}, \{0,-1,-1,-1\},\n \{1,0,1,1\}, \{1,0,1,-1\}, \{1,0,-1,1\}, \{1,0,-1,-1\},\n \{-1,0,1,1\}, \{-1,0,1,-1\}, \{-1,0,-1,1\}, \{-1,0,-1,-1\},\n \{1,1,0,1\}, \{1,1,0,-1\}, \{1,-1,0,1\}, \{1,-1,0,-1\},\n \{-1,1,0,1\}, \{-1,1,0,-1\}, \{-1,-1,0,1\}, \{-1,-1,0,-1\},\n \{1,1,1,0\}, \{1,1,-1,0\}, \{1,-1,1,0\}, \{1,-1,-1,0\},\n \{-1,1,1,0\}, \{-1,1,-1,0\}, \{-1,-1,1,0\}, \{-1,-1,-1,0\}\n \};\n float x = coord.x;\n float y = coord.y;\n float z = coord.z;\n float w = coord.w;\n float F4 = (sqrt(5.0f)-1.0)/4.0;\n float G4 = (5.0-sqrt(5.0f))/20.0;\n float n0, n1, n2, n3, n4;\n float s = (x + y + z + w) * F4;\n int i = fastfloor(x + s);\n int j = fastfloor(y + s);\n int k = fastfloor(z + s);\n int l = fastfloor(w + s);\n float t = (i + j + k + l) * G4;\n float X0 = i - t;\n float Y0 = j - t;\n float Z0 = k - t;\n float W0 = l - t;\n float x0 = x - X0;\n float y0 = y - Y0;\n float z0 = z - Z0;\n float w0 = w - W0;\n int c1 = (x0 > y0) ? 32 : 0;\n int c2 = (x0 > z0) ? 16 : 0;\n int c3 = (y0 > z0) ? 8 : 0;\n int c4 = (x0 > w0) ? 4 : 0;\n int c5 = (y0 > w0) ? 2 : 0;\n int c6 = (z0 > w0) ? 1 : 0;\n int c = c1 + c2 + c3 + c4 + c5 + c6;\n int i1, j1, k1, l1;\n int i2, j2, k2, l2;\n int i3, j3, k3, l3;\n i1 = simplex\[c]\[0]>=3 ? 1 : 0;\n j1 = simplex\[c]\[1]>=3 ? 1 : 0;\n k1 = simplex\[c]\[2]>=3 ? 1 : 0;\n l1 = simplex\[c]\[3]>=3 ? 1 : 0;\n i2 = simplex\[c]\[0]>=2 ? 1 : 0;\n j2 = simplex\[c]\[1]>=2 ? 1 : 0;\n k2 = simplex\[c]\[2]>=2 ? 1 : 0;\n l2 = simplex\[c]\[3]>=2 ? 1 : 0;\n i3 = simplex\[c]\[0]>=1 ? 1 : 0;\n j3 = simplex\[c]\[1]>=1 ? 1 : 0;\n k3 = simplex\[c]\[2]>=1 ? 1 : 0;\n l3 = simplex\[c]\[3]>=1 ? 1 : 0;\n float x1 = x0 - i1 + G4;\n float y1 = y0 - j1 + G4;\n float z1 = z0 - k1 + G4;\n float w1 = w0 - l1 + G4;\n float x2 = x0 - i2 + 2.0*G4;\n float y2 = y0 - j2 + 2.0*G4;\n float z2 = z0 - k2 + 2.0*G4;\n float w2 = w0 - l2 + 2.0*G4;\n float x3 = x0 - i3 + 3.0*G4;\n float y3 = y0 - j3 + 3.0*G4;\n float z3 = z0 - k3 + 3.0*G4;\n float w3 = w0 - l3 + 3.0*G4;\n float x4 = x0 - 1.0 + 4.0*G4;\n float y4 = y0 - 1.0 + 4.0*G4;\n float z4 = z0 - 1.0 + 4.0*G4;\n float w4 = w0 - 1.0 + 4.0*G4;\n int ii = i & 255;\n int jj = j & 255;\n int kk = k & 255;\n int ll = l & 255;\n int gi0 = perm\[ii+perm\[jj+perm\[kk+perm\[ll]]]] % 32;\n int gi1 = perm\[ii+i1+perm\[jj+j1+perm\[kk+k1+perm\[ll+l1]]]] % 32;\n int gi2 = perm\[ii+i2+perm\[jj+j2+perm\[kk+k2+perm\[ll+l2]]]] % 32;\n int gi3 = perm\[ii+i3+perm\[jj+j3+perm\[kk+k3+perm\[ll+l3]]]] % 32;\n int gi4 = perm\[ii+1+perm\[jj+1+perm\[kk+1+perm\[ll+1]]]] % 32;\n\n float t0 = 0.6 - x0*x0 - y0*y0 - z0*z0 - w0*w0;\n\n if(t0<0) \{\n n0 = 0.0;\n \}\n else\n \{\n t0 *= t0;\n n0 = t0 * t0 * dot(float4(grad4\[gi0]\[0],grad4\[gi0]\[2],grad4\[gi0]\[3],grad4\[gi0]\[3]), float4(x0, y0, z0, w0));\n \}\n\n float t1 = 0.6 - x1*x1 - y1*y1 - z1*z1 - w1*w1;\n\n if(t1<0) \{\n n1 = 0.0;\n \}\n else \{\n t1 *= t1;\n n1 = t1 * t1 * dot(float4(grad4\[gi1]\[0],grad4\[gi1]\[2],grad4\[gi1]\[3],grad4\[gi1]\[3]), float4(x1, y1, z1, w1));\n \}\n\n float t2 = 0.6 - x2*x2 - y2*y2 - z2*z2 - w2*w2;\n\n if(t2<0) \{\n n2 = 0.0;\n \}\n else \{\n t2 *= t2;\n n2 = t2 * t2 * dot(float4(grad4\[gi2]\[0],grad4\[gi2]\[2],grad4\[gi2]\[3],grad4\[gi2]\[3]), float4(x2, y2, z2, w2));\n \}\n\n float t3 = 0.6 - x3*x3 - y3*y3 - z3*z3 - w3*w3;\n\n if(t3<0) \{\n n3 = 0.0;\n \}\n else \{\n t3 *= t3;\n n3 = t3 * t3 * dot(float4(grad4\[gi3]\[0],grad4\[gi3]\[2],grad4\[gi3]\[3],grad4\[gi3]\[3]), float4(x3, y3, z3, w3));\n \}\n\n float t4 = 0.6 - x4*x4 - y4*y4 - z4*z4 - w4*w4;\n\n if(t4<0) \{\n n4 = 0.0;\n \}\n else \{\n t4 *= t4;\n n4 = t4 * t4 * dot(float4(grad4\[gi4]\[0],grad4\[gi4]\[2],grad4\[gi4]\[3],grad4\[gi4]\[3]), float4(x4, y4, z4, w4));\n \}\n return 27.0 * (n0 + n1 + n2 + n3 + n4);\n\}\n\ninline float fBm_4d(const float octaves, const float lacunarity, const float gain, const float4 coord, float amplitude)\n\{\n float total = 0;\n float4 frequency = coord;\n for( int i=0; i < octaves; i++ ) \{\n total += (float)raw_noise_4d(frequency) * amplitude;\n frequency *= lacunarity;\n amplitude *= gain;\n \}\n return float(total)*0.5f+0.5f;\n\}\n\ninline float turbulence_4d(const float octaves, const float lacunarity, const float gain, const float4 coord, float amplitude)\n\{\n float total = 0;\n float4 frequency = coord;\n for( int i=0; i < octaves; i++ ) \{\n total += fabs((float)raw_noise_4d(frequency)) * amplitude;\n frequency *= lacunarity;\n amplitude *= gain;\n \}\n return float(total);\n\}\n\nkernel Noise4D : ImageComputationKernel<ePixelWise>\n\{\n Image<eRead, eAccessPoint, eEdgeClamped> src;\n Image<eWrite, eAccessPoint> dst;\nparam:\n int octaves;\n float lacunarity;\n float amplitude;\n float gain;\n int mode;\n\n void define() \{\n defineParam(octaves, \"octaves\", 8);\n defineParam(lacunarity, \"lacunarity\", 2.0f);\n defineParam(amplitude, \"amplitude\", 0.6f);\n defineParam(gain, \"gain\", 0.5f);\n \}\n void process() \{\n float sample;\n if (mode == 0)\{\n sample = (float)fBm_4d(float(octaves),lacunarity,gain,src(), amplitude);\n \} else \{\n sample = (float)turbulence_4d(float(octaves),lacunarity,gain,src(), amplitude);\n \}\n dst() = float4(sample,sample,sample,sample);\n\}\n\};" | |
| rebuild "" | |
| Noise4D_octaves {{parent.octaves}} | |
| Noise4D_lacunarity {{parent.lacunarity}} | |
| Noise4D_amplitude {{parent.contrast}} | |
| Noise4D_gain {{parent.gain}} | |
| Noise4D_mode {{parent.type}} | |
| rebuild_finalise "" | |
| name BlinkScript1 | |
| selected true | |
| xpos 384 | |
| ypos 332 | |
| } | |
| Clamp { | |
| name Clamp1 | |
| xpos 384 | |
| ypos 370 | |
| } | |
| Gamma { | |
| channels {rgba.red rgba.green rgba.blue none} | |
| value {{parent.gamma}} | |
| name Gamma1 | |
| xpos 384 | |
| ypos 417 | |
| } | |
| Shuffle { | |
| alpha blue | |
| name Shuffle1 | |
| label "in \[value in]-->out \[value out]" | |
| xpos 384 | |
| ypos 463 | |
| } | |
| set N20731ba0 [stack 0] | |
| Merge2 { | |
| inputs 2 | |
| operation mask | |
| bbox B | |
| name Merge2 | |
| xpos 384 | |
| ypos 564 | |
| disable {{"parent.mapping != 4"}} | |
| } | |
| Dot { | |
| name Dot4 | |
| tile_color 0x4b5ec600 | |
| xpos 418 | |
| ypos 620 | |
| } | |
| push $Nacf7e30 | |
| Merge2 { | |
| inputs 2 | |
| bbox B | |
| name Merge1 | |
| xpos 955 | |
| ypos 616 | |
| } | |
| Output { | |
| name Output1 | |
| xpos 955 | |
| ypos 789 | |
| } | |
| end_group |
| set cut_paste_input [stack 0] | |
| version 11.2 v4 | |
| BackdropNode { | |
| inputs 0 | |
| name BackdropNode1 | |
| tile_color 0x7f7266ff | |
| label "Poor man's rusted metal shader" | |
| note_font_size 40 | |
| selected true | |
| xpos 520 | |
| ypos -798 | |
| bdwidth 697 | |
| bdheight 461 | |
| } | |
| Read { | |
| inputs 0 | |
| file_type exr | |
| file ./castle.exr | |
| format "5376 2688 0 0 5376 2688 1 " | |
| origset true | |
| name Read6 | |
| selected true | |
| xpos 155 | |
| ypos -391 | |
| } | |
| Dot { | |
| name Dot4 | |
| tile_color 0xcccccc00 | |
| selected true | |
| xpos 189 | |
| ypos -219 | |
| } | |
| set Nbfede80 [stack 0] | |
| Reformat { | |
| resize distort | |
| name Reformat1 | |
| selected true | |
| xpos 155 | |
| ypos -108 | |
| } | |
| Dot { | |
| name Dot16 | |
| tile_color 0xa57aaa00 | |
| selected true | |
| xpos 189 | |
| ypos 80 | |
| } | |
| set N4b8a7710 [stack 0] | |
| Dot { | |
| name Dot17 | |
| tile_color 0xa57aaa00 | |
| selected true | |
| xpos 344 | |
| ypos 80 | |
| } | |
| Dot { | |
| name Dot18 | |
| tile_color 0xa57aaa00 | |
| selected true | |
| xpos 344 | |
| ypos 439 | |
| } | |
| Dot { | |
| name Dot6 | |
| tile_color 0xa57aaa00 | |
| selected true | |
| xpos 567 | |
| ypos 439 | |
| } | |
| Read { | |
| inputs 0 | |
| file_type exr | |
| file ./irradiance4.exr | |
| format "1280 720 0 0 1280 720 1 HD_720" | |
| origset true | |
| name Read7 | |
| selected true | |
| xpos 158 | |
| ypos 334 | |
| } | |
| Dot { | |
| name Dot2 | |
| tile_color 0xcccccc00 | |
| selected true | |
| xpos 192 | |
| ypos 540 | |
| } | |
| push $cut_paste_input | |
| Axis2 { | |
| rotate {{curve x1 0 x100 0 x200 -360} {curve x1 0 x100 360} {curve x1 0 x100 0}} | |
| name Axis1 | |
| selected true | |
| xpos 602 | |
| ypos -46 | |
| } | |
| Camera2 { | |
| translate {0 0 5.28000021} | |
| focal 30 | |
| name Camera1 | |
| selected true | |
| xpos 602 | |
| ypos 50 | |
| } | |
| set Ne228e10 [stack 0] | |
| Noise_3D { | |
| inputs 0 | |
| name Noise_3D1 | |
| selected true | |
| xpos 930 | |
| ypos -632 | |
| mapping Spherical | |
| boiling 1.1 | |
| type Turbulence | |
| } | |
| Grade { | |
| channels rgba | |
| blackpoint 0.055 | |
| whitepoint 0.07 | |
| white_clamp true | |
| name Grade2 | |
| selected true | |
| xpos 930 | |
| ypos -592 | |
| } | |
| Dot { | |
| name Dot11 | |
| tile_color 0x7aa9ff00 | |
| selected true | |
| xpos 964 | |
| ypos -568 | |
| } | |
| set Nbd6afaa0 [stack 0] | |
| Noise_3D { | |
| inputs 0 | |
| name Noise_3D3 | |
| selected true | |
| xpos 1087 | |
| ypos -663 | |
| mapping Spherical | |
| uniform_scale 0.52 | |
| boiling 4.65 | |
| } | |
| Grade { | |
| blackpoint 0.17 | |
| whitepoint 0.7 | |
| white_clamp true | |
| name Grade4 | |
| selected true | |
| xpos 1087 | |
| ypos -639 | |
| } | |
| Grade { | |
| black 0.05 | |
| white 0.6 | |
| name Grade5 | |
| selected true | |
| xpos 1087 | |
| ypos -615 | |
| } | |
| Merge2 { | |
| inputs 2 | |
| bbox B | |
| mix 0.43 | |
| name Merge3 | |
| selected true | |
| xpos 1087 | |
| ypos -571 | |
| } | |
| Dot { | |
| name Dot12 | |
| tile_color 0x4b5ec600 | |
| selected true | |
| xpos 1121 | |
| ypos -426 | |
| } | |
| push $Nbd6afaa0 | |
| Invert { | |
| name Invert1 | |
| selected true | |
| xpos 930 | |
| ypos -506 | |
| } | |
| push $Nbd6afaa0 | |
| Noise_3D { | |
| inputs 0 | |
| name Noise_3D2 | |
| selected true | |
| xpos 570 | |
| ypos -716 | |
| mapping Spherical | |
| uniform_scale 4.3 | |
| } | |
| Grade { | |
| black {0.135 0.045 0 0} | |
| black_panelDropped true | |
| white {1 0.66 0.31 1} | |
| white_panelDropped true | |
| gamma 0.54 | |
| name Grade3 | |
| selected true | |
| xpos 570 | |
| ypos -692 | |
| } | |
| Saturation { | |
| saturation 0.76 | |
| name Saturation1 | |
| selected true | |
| xpos 570 | |
| ypos -668 | |
| } | |
| Dot { | |
| name Dot13 | |
| tile_color 0x7aa9ff00 | |
| selected true | |
| xpos 604 | |
| ypos -568 | |
| } | |
| Noise_3D { | |
| inputs 0 | |
| name Noise_3D | |
| selected true | |
| xpos 717 | |
| ypos -713 | |
| mapping Spherical | |
| } | |
| Grade { | |
| black 0.42 | |
| gamma 0.73 | |
| white_clamp true | |
| name Grade1 | |
| selected true | |
| xpos 717 | |
| ypos -636 | |
| } | |
| Keymix { | |
| inputs 3 | |
| maskChannel rgba.red | |
| name Keymix1 | |
| selected true | |
| xpos 717 | |
| ypos -577 | |
| } | |
| add_layer {metal metal.red} | |
| Copy { | |
| inputs 2 | |
| from0 rgba.red | |
| to0 metal.red | |
| bbox B | |
| name Copy1 | |
| selected true | |
| xpos 717 | |
| ypos -506 | |
| } | |
| add_layer {roughness roughness.red} | |
| Copy { | |
| inputs 2 | |
| from0 rgba.red | |
| to0 roughness.red | |
| bbox B | |
| name Copy2 | |
| selected true | |
| xpos 717 | |
| ypos -435 | |
| } | |
| Shuffle { | |
| alpha white | |
| name Shuffle4 | |
| label "in \[value in]-->out \[value out]" | |
| selected true | |
| xpos 717 | |
| ypos -382 | |
| } | |
| Sphere { | |
| rows 60 | |
| columns 60 | |
| name Sphere1 | |
| selected true | |
| xpos 717 | |
| ypos -100 | |
| } | |
| push 0 | |
| add_layer {pos pos.red pos.green pos.blue} | |
| add_layer {normal normal.red normal.green normal.blue} | |
| ScanlineRender { | |
| inputs 3 | |
| conservative_shader_sampling false | |
| shutteroffset centred | |
| motion_vectors_type distance | |
| output_shader_vectors true | |
| P_channel pos | |
| N_channel normal | |
| name ScanlineRender1 | |
| selected true | |
| xpos 717 | |
| ypos 104 | |
| } | |
| Dot { | |
| name Dot8 | |
| tile_color 0x9c000000 | |
| selected true | |
| xpos 751 | |
| ypos 206 | |
| } | |
| set Nc39ee120 [stack 0] | |
| Dot { | |
| name Dot14 | |
| tile_color 0x9c000000 | |
| selected true | |
| xpos 817 | |
| ypos 206 | |
| } | |
| set Nb8bd3270 [stack 0] | |
| Shuffle { | |
| in roughness | |
| name Shuffle5 | |
| label "in \[value in]-->out \[value out]" | |
| selected true | |
| xpos 783 | |
| ypos 285 | |
| } | |
| Dot { | |
| name Dot7 | |
| tile_color 0x9e3c6300 | |
| selected true | |
| xpos 817 | |
| ypos 456 | |
| } | |
| push $Nb8bd3270 | |
| Dot { | |
| name Dot15 | |
| tile_color 0x9c000000 | |
| selected true | |
| xpos 947 | |
| ypos 206 | |
| } | |
| Shuffle { | |
| in metal | |
| name Shuffle7 | |
| label "in \[value in]-->out \[value out]" | |
| selected true | |
| xpos 913 | |
| ypos 283 | |
| } | |
| Dot { | |
| name Dot3 | |
| tile_color 0x9e3c6300 | |
| selected true | |
| xpos 945 | |
| ypos 446 | |
| } | |
| push $Nc39ee120 | |
| Dot { | |
| name Dot9 | |
| tile_color 0x9c000000 | |
| selected true | |
| xpos 682 | |
| ypos 206 | |
| } | |
| set Ncc595370 [stack 0] | |
| Dot { | |
| name Dot10 | |
| tile_color 0x9c000000 | |
| selected true | |
| xpos 576 | |
| ypos 207 | |
| } | |
| Shuffle { | |
| in pos | |
| name Shuffle3 | |
| label "in \[value in]-->out \[value out]" | |
| selected true | |
| xpos 542 | |
| ypos 282 | |
| } | |
| push $Ncc595370 | |
| Shuffle { | |
| in normal | |
| name Shuffle2 | |
| label "in \[value in]-->out \[value out]" | |
| selected true | |
| xpos 648 | |
| ypos 278 | |
| } | |
| push $Nc39ee120 | |
| BlinkScript { | |
| inputs 7 | |
| recompileCount 265 | |
| ProgramGroup 1 | |
| KernelDescription "2 \"PBR\" iterate pixelWise 22f4474fea2801b90a761e07dc4e7a87647d0822b53bad54aca74d8ab5e9aa41 8 \"src\" Read Point \"nworld\" Read Point \"pworld\" Read Point \"metalness\" Read Point \"roughness\" Read Point \"irradiance\" Read Random \"specular\" Read Random \"dst\" Write Point 3 \"Image Size\" Float 2 AACgRAAANEQ= \"camPos\" Float 3 AAAAAAAAAAAAAAAAAAAAAA== \"samples\" Int 1 AAAAAA== 3 \"size\" 2 1 \"camPos\" 3 1 \"samples\" 1 1 7 \"srcconstEdgeColor\" Float 4 1 AAAAAAAAAAAAAAAAAAAAAA== \"nworldconstEdgeColor\" Float 4 1 AAAAAAAAAAAAAAAAAAAAAA== \"pworldconstEdgeColor\" Float 4 1 AAAAAAAAAAAAAAAAAAAAAA== \"metalnessconstEdgeColor\" Float 4 1 AAAAAAAAAAAAAAAAAAAAAA== \"roughnessconstEdgeColor\" Float 4 1 AAAAAAAAAAAAAAAAAAAAAA== \"irradianceconstEdgeColor\" Float 4 1 AAAAAAAAAAAAAAAAAAAAAA== \"specularconstEdgeColor\" Float 4 1 AAAAAAAAAAAAAAAAAAAAAA==" | |
| kernelSource "/*\nIrradiance map kernel by Erwan Leroy\n\nAdapted from https://learnopengl.com/PBR/IBL/Specular-IBL\n*/\n\n// Shlick Fresnel\ninline float3 getFresnel(float cosTheta, float3 F0)\n\{return min(F0 + (1.0f - F0) * pow(1.0f + cosTheta, 5.0f), float3(1.0f));\}\n\n// convert a normal value to latLong (at corresponding normal on a sphere)\ninline float2 normal_to_latLong(const float3 normal)\n\{\n float3 n = normalize(normal);\n return float2(asin(n.y), atan2(n.z, n.x));\n\}\n\n// convert latLong to STMap coordinate\ninline float2 latLong_to_st(const float2 latLong)\n\{return float2(latLong.y/ (2 * PI) + 0.5f, latLong.x / PI + 0.5f);\}\n\n// Convert relative coordinates to absolute, clamped to image size\ninline float2 st_to_uv(const float2 st, const float2 image_size)\n\{return min(max(st*image_size-float2(0.5f), float2(0.0f)), image_size - float2(1.0f));\}\n\n// Some specific sequence number from some smart guys\ninline float VanDerCorpus(int n, int base)\n\{\n float invBase = 1.0 / float(base);\n float denom = 1.0;\n float result = 0.0;\n\n for(int i = 0; i < 32; ++i)\n \{\n if(n > 0)\n \{\n denom = fmod(float(n), 2.0f);\n result += denom * invBase;\n invBase = invBase / 2.0f;\n n = int(float(n) / 2.0f);\n \}\n \}\n\n return result;\n\}\n// gives us the low-discrepancy sample i of the total sample set of size N\ninline float2 Hammersley(int i, int N)\n\{\n return float2(float(i)/float(N), VanDerCorpus(i, 2));\n\}\n\n// GGX\ninline float3 ImportanceSampleGGX(float2 Xi, float3 N, float roughness)\n\{\n float a = roughness*roughness;\n\n float phi = 2.0f * PI * Xi.x;\n float cosTheta = sqrt((1.0f - Xi.y) / (1.0f + (a*a - 1.0f) * Xi.y));\n float sinTheta = sqrt(1.0f - cosTheta*cosTheta);\n\n // from spherical coordinates to cartesian coordinates\n float3 H;\n H.x = cos(phi) * sinTheta;\n H.y = sin(phi) * sinTheta;\n H.z = cosTheta;\n\n // from tangent-space vector to world-space sample vector\n float3 up = fabs(N.z) < 0.999f ? float3(0.0f, 0.0f, 1.0f) : float3(1.0f, 0.0f, 0.0f);\n float3 tangent = normalize(cross(up, N));\n float3 bitangent = cross(N, tangent);\n\n float3 sampleVec = tangent * H.x + bitangent * H.y + N * H.z;\n return normalize(sampleVec);\n\}\n\n\nkernel PBR : ImageComputationKernel<ePixelWise>\n\{\n Image<eRead, eAccessPoint, eEdgeConstant> src;\n Image<eRead, eAccessPoint, eEdgeConstant> nworld;\n Image<eRead, eAccessPoint, eEdgeConstant> pworld;\n Image<eRead, eAccessPoint, eEdgeConstant> metalness;\n Image<eRead, eAccessPoint, eEdgeConstant> roughness;\n Image<eRead, eAccessRandom, eEdgeConstant> irradiance;\n Image<eRead, eAccessRandom, eEdgeConstant> specular;\n Image<eWrite, eAccessPoint> dst;\n\n param:\n float2 size;\n float3 camPos;\n int samples;\n\n void define() \{\n defineParam(size, \"Image Size\", float2(1280.0f, 720.0f));\n \}\n\n void process()\n \{\n SampleType(src) srcSample(0);\n SampleType(nworld) nworldSample(0);\n SampleType(pworld) pworldSample(0);\n SampleType(irradiance) radiance(0);\n SampleType(specular) specSample(0);\n\n // Sample textures\n srcSample = src();\n nworldSample = nworld();\n pworldSample = pworld();\n\n // Convert sample textures to values with the right number of dimensions\n // These are the values we want to use in calculations further down\n float3 albedo = float3(srcSample.x, srcSample.y, srcSample.z);\n float alpha = srcSample.w;\n float metal = metalness(0);\n float roughnessSample = roughness(0);\n float3 normal = float3(nworldSample.x, nworldSample.y, nworldSample.z);\n float3 position = float3(pworldSample.x, pworldSample.y, pworldSample.z);\n\n // Obtain the Camera vector\n float3 camVector = position - camPos;\n camVector = normalize(camVector);\n\n // Calculate fresnel\n // F0 is the color of reflection for a normal pointing straight at camera, defined as 0.04 for non metallic\n float3 F0 = albedo*metal + float3(0.04f) * (1.0f-metal) ;\n float3 fresnel = getFresnel(dot(camVector, normal), F0);\n\n // calculate diffuse color (albedo contains both diffuse color and spec color for metals)\n float3 color = albedo * (1.0f - metal);\n float2 radianceCoords = st_to_uv(latLong_to_st(normal_to_latLong(normal)), size);\n radiance = bilinear(irradiance, radianceCoords.x, radianceCoords.y);\n float3 diffuse = color * float3(radiance.x, radiance.y, radiance.z);\n\n // Calculate reflection\n float3 reflectVector = camVector - 2 * dot(camVector, normal) * normal;\n\n float totalWeight = 0.0f;\n float4 spec = float4(0.0f);\n for(int i = 0; i < samples; i++)\n \{\n float2 Xi = Hammersley(i, samples);\n float3 L = ImportanceSampleGGX(Xi, reflectVector, roughnessSample);\n\n float NdotL = max(dot(normal, L), 0.0f);\n if(NdotL > 0.0f)\n \{\n float2 reflectCoords = st_to_uv(latLong_to_st(normal_to_latLong(L)), size);\n spec += bilinear(specular, reflectCoords.x, reflectCoords.y) * NdotL;\n totalWeight += NdotL;\n \}\n \}\n spec = spec / totalWeight;\n\n float3 result = (1.0f-fresnel)*diffuse + fresnel*float3(spec.x, spec.y, spec.z);\n\n dst() = float4(result.x, result.y, result.z, alpha);\n \}\n\n\};" | |
| rebuild "" | |
| PBR_camPos {{curve x1 0 0.3348783255 0.668408215 0.9992465973 1.326061368 1.647536635 1.962377906 2.26931715 2.567118883 2.854583502 3.130554199 3.393918514 3.643617392 3.878644466 4.098053455 4.300961494 4.486550331 4.654074192 4.802856922 4.932300568 5.041883945 5.131165504 5.199785233 5.247467518 5.274019718 5.279335499 5.263393402 5.226257324 5.168076992 5.089087009 4.989604473 4.87003088 4.730847359 4.572614193 4.395968437 4.201622963 3.990358353 3.763025761 3.520540714 3.263880491 2.994076014 2.712216616 2.41943574 2.116913795 1.805866838 1.487548232 1.16324091 0.8342472911 0.5018957257 0.1675231159 -0.167522788 -0.5018953681 -0.8342469931 -1.163240671 -1.487547755 -1.80586648 -2.116913557 -2.419435501 -2.712216139 -2.994075537 -3.263880253 -3.520540237 -3.763025284 -3.990357876 -4.201622963 -4.395969391 -4.57261467 -4.730847836 -4.870030403 -4.989603996 -5.089086533 -5.168077469 -5.226257324 -5.263393402 -5.279335499 -5.274019718 -5.247467518 -5.199785233 -5.131165504 -5.041883945 -4.932300568 -4.802857876 -4.654073715 -4.486551285 -4.300960541 -4.098052979 -3.878645182 -3.643616199 -3.393919468 -3.130554438 -2.854583979 -2.567119122 -2.269319773 -1.962377906 -1.647536516 -1.32606113 -0.9992462397 -0.6684100628 -0.3348775506 9.231845297e-07 9.231841887e-07 9.231780496e-07 9.231520153e-07 9.230823821e-07 9.229368061e-07 9.226742463e-07 9.22245647e-07 9.21593994e-07 9.206545997e-07 9.193558412e-07 9.176192748e-07 9.153601468e-07 9.124877351e-07 9.08906145e-07 9.04514593e-07 8.992080325e-07 8.928780062e-07 8.854132147e-07 8.767001987e-07 8.66624589e-07 8.550716188e-07 8.419272035e-07 8.27079532e-07 8.10419408e-07 7.918418419e-07 7.712475849e-07 7.485442097e-07 7.236474175e-07 6.964827435e-07 6.669866934e-07 6.351086199e-07 6.008121431e-07 5.640762311e-07 5.248970751e-07 4.832896252e-07 4.392884989e-07 3.929496017e-07 3.443509513e-07 2.935941552e-07 2.408048658e-07 1.861336472e-07 1.297563159e-07 7.187420437e-08 1.271443661e-08 -4.747101201e-08 -1.084050751e-07 -1.69787171e-07 -2.312941234e-07 -2.925820297e-07 -3.532873905e-07 -4.130303068e-07 -4.714162003e-07 -5.280394362e-07 -5.82486166e-07 -6.3433788e-07 -6.831751307e-07 -7.285815968e-07 -7.701491427e-07 -8.074806601e-07 -8.401958098e-07 -8.679355687e-07 -8.903664934e-07 -9.071854379e-07 -9.181239875e-07 -9.229532907e-07 -9.214873558e-07 -9.135876553e-07 -8.99166082e-07 -8.781879046e-07 -8.506747804e-07 -8.167064038e-07 -7.764223255e-07 -7.300220659e-07 -6.777656836e-07 -6.199728091e-07 -5.570223038e-07 -4.893493042e-07 -4.174414698e-07 -3.418385859e-07 -2.631255427e-07 -1.819273479e-07 -9.890605668e-08 -1.475295441e-08 6.981818501e-08 1.540776253e-07 2.372862156e-07 3.187051618e-07 3.976019798e-07 4.732574723e-07 5.449776381e-07 6.120971534e-07 6.739880973e-07 7.300681659e-07 7.798059301e-07 8.227278272e-07 8.584236753e-07 8.8655014e-07 9.068368172e-07 9.190877108e-07 9.231845297e-07} {curve x1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.004959694576 0.01977238432 0.04433815926 0.07855602354 0.1223226786 0.1755308956 0.2380675673 0.3098111749 0.3906292915 0.4803754985 0.5788860321 0.6859766841 0.8014389873 0.9250363708 1.056500316 1.195526958 1.341772676 1.494850278 1.654325962 1.819714785 1.990478277 2.166021109 2.345687628 2.528761387 2.714462757 2.901945353 3.090299845 3.278550863 3.465659142 3.650523186 3.831982136 4.00881815 4.179763794 4.343503952 4.49868679 4.643927097 4.77781868 4.898942471 5.005877972 5.097215176 5.171567917 5.227586269 5.263973713 5.279499531 5.273015022 5.243471622 5.189935207 5.11160183 5.007815838 4.878084183 4.722090244 4.539711475 4.331027508 4.096334934 3.83615613 3.551247835 3.242607594 2.911472082 2.559328794 2.187902689 1.799160242 1.395298123 0.9787319303 0.552087009 0.1181768179 -0.3200103939 -0.75934273 -1.196560144 -1.628310919 -2.05117774 -2.461708307 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| PBR_samples 512 | |
| rebuild_finalise "" | |
| maxTileLines 100 | |
| name BlinkScript9 | |
| selected true | |
| xpos 717 | |
| ypos 531 | |
| } | |
| Premult { | |
| name Premult1 | |
| selected true | |
| xpos 717 | |
| ypos 567 | |
| } | |
| Dot { | |
| name Dot1 | |
| tile_color 0xcccccc00 | |
| selected true | |
| xpos 751 | |
| ypos 733 | |
| } | |
| push $Ne228e10 | |
| push $Nbfede80 | |
| Dot { | |
| name Dot5 | |
| tile_color 0xcccccc00 | |
| selected true | |
| xpos 491 | |
| ypos -219 | |
| } | |
| Mirror2 { | |
| flop true | |
| name Mirror2_1 | |
| selected true | |
| xpos 457 | |
| ypos -135 | |
| } | |
| Shuffle { | |
| alpha white | |
| name Shuffle1 | |
| label "in \[value in]-->out \[value out]" | |
| selected true | |
| xpos 457 | |
| ypos -111 | |
| } | |
| Sphere { | |
| rotate {0 -90 0} | |
| uniform_scale 1000 | |
| name Sphere2 | |
| selected true | |
| xpos 457 | |
| ypos -75 | |
| } | |
| push 0 | |
| ScanlineRender { | |
| inputs 3 | |
| conservative_shader_sampling false | |
| shutteroffset centred | |
| motion_vectors_type distance | |
| name ScanlineRender2 | |
| selected true | |
| xpos 457 | |
| ypos 111 | |
| } | |
| Merge2 { | |
| inputs 2 | |
| bbox B | |
| name Merge1 | |
| selected true | |
| xpos 457 | |
| ypos 730 | |
| } | |
| Write { | |
| colorspace "Output - Rec.709" | |
| file_type mov | |
| mov64_format "mov (QuickTime / MOV)" | |
| mov64_codec "png " | |
| mov64_bitrate 20000 | |
| mov64_bitrate_tolerance 40000000 | |
| mov64_quality_min 2 | |
| mov64_quality_max 31 | |
| mov64_gop_size 12 | |
| mov64_b_frames 0 | |
| checkHashOnRead false | |
| version 6 | |
| name Write2 | |
| selected true | |
| xpos 457 | |
| ypos 827 | |
| } | |
| StickyNote { | |
| inputs 0 | |
| name StickyNote1 | |
| label "compared to nuke's sphere UVs, \nThe shader maps mirrored and rotated -90degrees\nAdjust so that env matches reflections." | |
| selected true | |
| xpos 380 | |
| ypos -194 | |
| } | |
| StickyNote { | |
| inputs 0 | |
| name StickyNote2 | |
| label "pre-comping the irradiance is easier on the GPU" | |
| selected true | |
| xpos 70 | |
| ypos 307 | |
| } | |
| push $N4b8a7710 | |
| BlinkScript { | |
| recompileCount 135 | |
| ProgramGroup 1 | |
| KernelDescription "2 \"Irradiance\" iterate pixelWise b0331eefac71e630b6652889597917741002c7322ca016e58bdf55217491b25f 2 \"src\" Read Random \"dst\" Write Point 2 \"Samples\" Int 1 GQAAAA== \"Image Size\" Float 2 AACgRAAANEQ= 2 \"samples\" 1 1 \"size\" 2 1 1 \"srcconstEdgeColor\" Float 4 1 AAAAAAAAAAAAAAAAAAAAAA==" | |
| kernelSource "/*\nIrradiance map kernel by Erwan Leroy\n\nAdapted from https://learnopengl.com/PBR/IBL/Diffuse-irradiance\n\nThanks to Sam Hodge for pointing me to the Matrix method.\n*/\n\n// Get a rotation matrix at a certain latLong\ninline float3x3 get_rot_matrix(const float2 latLong)\n\{\n // Inverse the latlong and offset it, to get proper center sample\n float2 invLatLong = -latLong + 0.5f * PI;\n float3x3 rx, ry;\n float rxd\[] = \{1.0, 0.0, 0.0, 0.0, cos(invLatLong.x), -sin(invLatLong.x), 0.0, sin(invLatLong.x), cos(invLatLong.x)\};\n float ryd\[] = \{cos(invLatLong.y), 0.0, sin(invLatLong.y), 0.0, 1.0, 0.0, -sin(invLatLong.y), 0.0, cos(invLatLong.y)\};\n rx.setArray(rxd);\n ry.setArray(ryd);\n\n return ry * rx;\n\}\n\n// Convert absolute X/Y coordinates to relative\ninline float2 uv_to_st(const float2 uv, const float2 image_size)\n\{return (uv+float2(0.5f)) / image_size;\}\n\n// Convert an STMap value to Latitude and Longitude\ninline float2 st_to_latLong(const float2 st)\n\{return float2((st.y - 0.5f) * PI, (st.x - 0.5f) * 2 * PI);\}\n\n// Convert a latLong value to a normal value\ninline float3 latLong_to_normal(const float2 latLong)\n\{return float3(cos(latLong.x) * cos(latLong.y), sin(latLong.x), cos(latLong.x) * sin(latLong.y));\}\n\n// convert a normal value to latLong (at corresponding normal on a sphere)\ninline float2 normal_to_latLong(const float3 normal)\n\{return float2(asin(normal.y), atan2(normal.z, normal.x));\}\n\n// convert latLong to STMap coordinate\ninline float2 latLong_to_st(const float2 latLong)\n\{return float2(latLong.y/ (2 * PI) + 0.5f, latLong.x / PI + 0.5f);\}\n\n// Convert relative coordinates to absolute\ninline float2 st_to_uv(const float2 st, const float2 image_size)\n\{return st*image_size-float2(0.5f);\}\n\n\nkernel Irradiance : ImageComputationKernel<ePixelWise>\n\{\n Image<eRead, eAccessRandom, eEdgeConstant> src;\n Image<eWrite, eAccessPoint> dst;\n\n param:\n int samples;\n float2 size;\n\n void define() \{\n defineParam(samples, \"Samples\", 25);\n defineParam(size, \"Image Size\", float2(1280.0f, 720.0f));\n \}\n\n void process(int2 pos)\n \{\n SampleType(src) irradiance(0);\n float2 latLong = st_to_latLong(uv_to_st(float2(pos.x,pos.y), size));\n\n float3x3 matrix = get_rot_matrix(latLong);\n\n float sampleDelta = PI / float(samples);\n\n // Force a sample at current pixel\n irradiance += src(pos.x, pos.y);\n int nrSamples = 1;\n\n for(float phi = 0.0f; phi < 2.0f * PI; phi += sampleDelta)\n \{\n for(float theta = sampleDelta; theta < 0.5f * PI; theta += sampleDelta)\n \{\n // get the sample vector (the pole, if theta and phi == 0)\n float3 sampleVec = latLong_to_normal(float2(theta, phi));\n // rotate the sample vector\n sampleVec = matrix * sampleVec;\n\n //get back coordinates from the rotated vector\n float2 coordinates = st_to_uv(latLong_to_st(normal_to_latLong(sampleVec)), size);\n\n irradiance += bilinear(src, coordinates.x, coordinates.y) * cos(theta) * sin(theta);\n nrSamples++;\n\n \}\n \}\n irradiance = PI * irradiance * (1.0 / float(nrSamples));\n\n //Use a bilinear filter to get the value at that src position.\n dst() = irradiance;\n \}\n\n\};" | |
| rebuild "" | |
| Irradiance_Samples 20 | |
| rebuild_finalise "" | |
| maxTileLines 100 | |
| name BlinkScript10 | |
| tile_color 0xe000ff | |
| selected true | |
| xpos 155 | |
| ypos 185 | |
| } | |
| Write { | |
| file ./irradiance4.exr | |
| proxy ./irradiance4_proxy.exr | |
| file_type exr | |
| interleave channels | |
| first_part none | |
| version 6 | |
| name Write1 | |
| selected true | |
| xpos 155 | |
| ypos 265 | |
| } |