LeenkxTeam/LNXSDK
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Extend BRDF

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This commit is contained in:
Onek8
2026-07-27 12:10:11 -07:00
parent 0b4184ccc2
commit 7aeebf2008
24 changed files with 878 additions and 3 deletions
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31
leenkx/blender/lnx/material/make_mesh.py
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@ -74,6 +74,8 @@ def make(context_id, rpasses):
con['color_attachments'] = [attachment_format, attachment_format]
if '_gbuffer2' in wrd.world_defs:
con['color_attachments'].append(attachment_format)
if '_Anisotropy' in wrd.world_defs:
con['color_attachments'].append('RGBA64')
con_mesh = mat_state.data.add_context(con)
mat_state.con_mesh = con_mesh
@ -252,7 +254,9 @@ def make_deferred(con_mesh, rpasses):
frag.write('n.xy = n.z >= 0.0 ? n.xy : octahedronWrap(n.xy);')
is_shadeless = mat_state.emission_type == mat_state.EmissionType.SHADELESS
if is_shadeless or '_SSS' in wrd.world_defs or '_Hair' in wrd.world_defs:
ext_brdf_defs = ('_ClearCoat', '_Sheen', '_Anisotropy', '_Subsurface', '_Transmission')
has_ext_brdf = any(d in wrd.world_defs for d in ext_brdf_defs)
if is_shadeless or '_SSS' in wrd.world_defs or '_Hair' in wrd.world_defs or has_ext_brdf:
frag.write('uint matid = 0;')
if is_shadeless:
frag.write('matid = 1;')
@ -260,6 +264,9 @@ def make_deferred(con_mesh, rpasses):
if '_SSS' in wrd.world_defs or '_Hair' in wrd.world_defs:
frag.add_uniform('int materialID')
frag.write('if (materialID == 2) matid = 2;')
if has_ext_brdf:
frag.add_uniform('int materialID')
frag.write('if (materialID >= 3) matid = uint(materialID);')
else:
frag.write('const uint matid = 0;')
@ -285,6 +292,14 @@ def make_deferred(con_mesh, rpasses):
if '_SSRefraction' in wrd.world_defs or '_VoxelRefract' in wrd.world_defs:
frag.write('fragColor[GBUF_IDX_REFRACTION] = vec4(1.0, 0.0, 0.0, 1.0);')
if '_Anisotropy' in wrd.world_defs:
frag.write('#ifdef _Anisotropy')
if con_mesh.is_elem('tang'):
frag.write('fragColor[GBUF_IDX_3] = vec4(normalize(TBN[0]), 0.0);')
else:
frag.write('fragColor[GBUF_IDX_3] = vec4(0.0, 0.0, 0.0, 0.0);')
frag.write('#endif')
return con_mesh
@ -830,6 +845,16 @@ def make_forward_base(con_mesh, parse_opacity=False, transluc_pass=False):
frag.add_uniform('mat4 invVP', '_inverseViewProjectionMatrix')
frag.add_uniform('vec3 eye', '_cameraPosition')
frag.write(', gbufferD, invVP, eye')
if '_ClearCoat' in wrd.world_defs:
frag.write(', clearcoat, clearcoatRough, coatIOR, coatTint')
if '_Sheen' in wrd.world_defs:
frag.write(', sheen, sheenRough, sheenTint')
if '_Anisotropy' in wrd.world_defs:
frag.write(', anisotropy, anisoRot, tangent')
if '_Subsurface' in wrd.world_defs:
frag.write(', subsurface, subsurfaceColor, subsurfaceRadius, subsurfaceAnisotropy')
if '_Transmission' in wrd.world_defs:
frag.write(', transmission, transmissionRough, ior, thinWall')
frag.write(');')
if '_Clusters' in wrd.world_defs:
@ -872,6 +897,10 @@ def _write_material_attribs_default(frag: shader.Shader, parse_opacity: bool):
frag.write('float transmissionRough = 0.0;')
frag.write('float thinWall = 0.0;')
frag.write('vec3 tangent = vec3(0.0);')
frag.write('float subsurfaceScale = 0.05;')
frag.write('float subsurfaceAnisotropy = 0.0;')
frag.write('float coatIOR = 1.5;')
frag.write('vec3 coatTint = vec3(1.0);')
if parse_opacity:
frag.write('float opacity;')
frag.write('float ior = 1.45;')