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Improve height mask

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This commit is contained in:
luboslenco
2020-03-27 12:14:47 +01:00
parent 91343d3a65
commit b1d0042f10
1 changed files with 6 additions and 2 deletions
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Sources/arm/node/MakeMesh.hx
+6 -2
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@@ -151,8 +151,12 @@ class MakeMesh {
frag.wposition = true;
frag.write('vec3 dpdx = dFdx(wposition);');
frag.write('vec3 dpdy = dFdy(wposition);');
frag.write('float dhdx = dFdx(pack.a * $ds);');
frag.write('float dhdy = dFdy(pack.a * $ds);');
frag.write('float height_sample = pack.a;');
if (l.texpaint_mask != null) {
frag.write('height_sample *= maskTexture;');
}
frag.write('float dhdx = dFdx(height_sample * $ds);');
frag.write('float dhdy = dFdy(height_sample * $ds);');
frag.write('vec3 cross_x = cross(n, dpdx);');
frag.write('vec3 cross_y = cross(dpdy, n);');
frag.write('vec3 ngrad = (cross_y * dhdx + cross_x * dhdy) / dot(dpdx, cross_y);');