I use Substance designer build shader but omniverse didn’t support adobe module.
I have a map packed for Specular metal mask, and i use vector map node from adobe module but omniverse can’t find module.
or has some node can replace vector map?
lookup.float3 node didn’t work
Hello Jiuaco
Thanks for posting. Ill try and help you through your troubles here. So, first id like to ask, what are you trying to accomplish. Maybe we can do this a different way. If you can, you should (for now at least) stick to purely MDL calls. They are far more likely to work as you wish and do not require editing the paths to make them work in Omniverse. Substance currently uses library calls rather than direct pathing, so if you do not add the nodes to your library, you cant access them (bummer huh). You can however edit the output a little to make it work, but yea, its a bit of trouble.
So, to begin, lets first understand what you need to do. A screen shot of your problem would also be helpful and eventually (if we need to edit the output) we may need the actual mdl that substance outputs.
Hi pkind:
thanks reply.
My goal was pack pbr texture to there tga map.first set up is albedo and ao map, second set up is specular metal mask. the third set up is Normal.x roughness Normal.z。
So i can save most momery for render big or large scene.
here is my code:
mdl 1.5;
import ::adobe::util::vector_texture;
import ::anno::author;
import ::anno::copyright_notice;
import ::anno::description;
import ::anno::display_name;
import ::anno::in_group;
import ::anno::unused;
import ::anno::usage;
import ::base::file_texture;
import ::base::mono_mode;
import ::base::tangent_space_normal_texture;
import ::base::texture_coordinate_info;
import ::base::texture_return;
import ::df::custom_curve_layer;
import ::df::diffuse_reflection_bsdf;
import ::df::directional_factor;
import ::df::microfacet_ggx_smith_bsdf;
import ::df::scatter_mode;
import ::df::weighted_layer;
import ::math::dot;
import ::state::normal;
import ::state::texture_coordinate;
import ::state::texture_tangent_u;
import ::state::texture_tangent_v;
import ::tex::gamma_mode;
import ::tex::lookup_float3;
import ::tex::wrap_mode;
let {
bool tmp0 = false;
material_surface tmp1(df::weighted_layer(tex::lookup_float3(Specular_Metal_Mask_Map, float2(0.f), tex::wrap_repeat, tex::wrap_repeat, float2(0.f, 1.f), float2(0.f, 1.f)).x, df::directional_factor(basecolor, color(1.f, 1.f, 1.f), 3.f, df::microfacet_ggx_smith_bsdf(tex::lookup_float3(Normal_Roughness_Map, float2(0.f), tex::wrap_repeat, tex::wrap_repeat, float2(0.f, 1.f), float2(0.f, 1.f)).y * tex::lookup_float3(Normal_Roughness_Map, float2(0.f), tex::wrap_repeat, tex::wrap_repeat, float2(0.f, 1.f), float2(0.f, 1.f)).y, tex::lookup_float3(Normal_Roughness_Map, float2(0.f), tex::wrap_repeat, tex::wrap_repeat, float2(0.f, 1.f), float2(0.f, 1.f)).y * tex::lookup_float3(Normal_Roughness_Map, float2(0.f), tex::wrap_repeat, tex::wrap_repeat, float2(0.f, 1.f), float2(0.f, 1.f)).y, color(1.f, 1.f, 1.f), state::texture_tangent_u(0), df::scatter_reflect, "")), df::custom_curve_layer(tex::lookup_float3(Specular_Metal_Mask_Map, float2(0.f), tex::wrap_repeat, tex::wrap_repeat, float2(0.f, 1.f), float2(0.f, 1.f)).y, 1.f, 5.f, 1.f, df::microfacet_ggx_smith_bsdf(tex::lookup_float3(Normal_Roughness_Map, float2(0.f), tex::wrap_repeat, tex::wrap_repeat, float2(0.f, 1.f), float2(0.f, 1.f)).y * tex::lookup_float3(Normal_Roughness_Map, float2(0.f), tex::wrap_repeat, tex::wrap_repeat, float2(0.f, 1.f), float2(0.f, 1.f)).y, tex::lookup_float3(Normal_Roughness_Map, float2(0.f), tex::wrap_repeat, tex::wrap_repeat, float2(0.f, 1.f), float2(0.f, 1.f)).y * tex::lookup_float3(Normal_Roughness_Map, float2(0.f), tex::wrap_repeat, tex::wrap_repeat, float2(0.f, 1.f), float2(0.f, 1.f)).y, color(1.f, 1.f, 1.f), state::texture_tangent_u(0), df::scatter_reflect, ""), df::diffuse_reflection_bsdf(basecolor, 0.f, ""), state::normal()), state::normal()), material_emission(emission: edf(), intensity: color(0.f, 0.f, 0.f), mode: intensity_radiant_exitance));
material_surface tmp2 = material_surface(scattering: bsdf(), emission: material_emission(emission: edf(), intensity: color(0.f, 0.f, 0.f), mode: intensity_radiant_exitance));
color tmp3 = color(1.f, 1.f, 1.f);
material_volume tmp4 = material_volume(scattering: vdf(), absorption_coefficient: color(0.f, 0.f, 0.f), scattering_coefficient: color(0.f, 0.f, 0.f));
material_geometry tmp5(float3(0.f), adobe::util::vector_texture(Specular_Metal_Mask_Map).z, normal);
hair_bsdf tmp6 = hair_bsdf();
} in
material(
thin_walled: tmp0,
surface: tmp1,
backface: tmp2,
ior: tmp3,
volume: tmp4,
geometry: tmp5,
hair: tmp6);
Ok, so i have been down this exact path and struggled in the same ways. This should and will become a lot easier in the future. This is how i handled it… Feel free to use the attached substance file as a springboard. I packed mine as Roughness, Metal and AO into an RMA texture. you can just rewire it as you see fit. You will also see i use the int operator to get the required data from the vector.
PK_RMA_EM_Simple.zip (6.6 KB)
Something also to note, because i am only using Base MDL nodes, i do not need to load any library definitions. Also it may give some warnings on output, you can ignore them. The shader will work as expected.