Tileable texture channels with documented roles and resolution, for validating texture pipelines, atlas packers, and material import/export.
Base-colour / albedo map: the diffuse reflectance with no lighting baked in. Part of the brick wall PBR set. Pair with the other channels in this group.
Tangent-space normal map encoded from the surface height. Perturbs shading normals for detail without extra geometry. Part of the brick wall PBR set. Pair with the other channels in this group.
Roughness map (black = glossy, white = matte) driving the microfacet spread of the BRDF. Part of the brick wall PBR set. Pair with the other channels in this group.
Metallic map (black = dielectric, white = metal) selecting the reflectance model per texel. Part of the brick wall PBR set. Pair with the other channels in this group.
Ambient-occlusion map darkening crevices where ambient light is blocked. Part of the brick wall PBR set. Pair with the other channels in this group.
Height / displacement map used for parallax or true displacement of the surface. Part of the brick wall PBR set. Pair with the other channels in this group.
Base-colour / albedo map: the diffuse reflectance with no lighting baked in. Part of the wood planks PBR set. Pair with the other channels in this group.
Tangent-space normal map encoded from the surface height. Perturbs shading normals for detail without extra geometry. Part of the wood planks PBR set. Pair with the other channels in this group.
Roughness map (black = glossy, white = matte) driving the microfacet spread of the BRDF. Part of the wood planks PBR set. Pair with the other channels in this group.
Metallic map (black = dielectric, white = metal) selecting the reflectance model per texel. Part of the wood planks PBR set. Pair with the other channels in this group.
Ambient-occlusion map darkening crevices where ambient light is blocked. Part of the wood planks PBR set. Pair with the other channels in this group.
Height / displacement map used for parallax or true displacement of the surface. Part of the wood planks PBR set. Pair with the other channels in this group.
Base-colour / albedo map: the diffuse reflectance with no lighting baked in. Part of the brushed metal PBR set. Pair with the other channels in this group.
Tangent-space normal map encoded from the surface height. Perturbs shading normals for detail without extra geometry. Part of the brushed metal PBR set. Pair with the other channels in this group.
Roughness map (black = glossy, white = matte) driving the microfacet spread of the BRDF. Part of the brushed metal PBR set. Pair with the other channels in this group.
Metallic map (black = dielectric, white = metal) selecting the reflectance model per texel. Part of the brushed metal PBR set. Pair with the other channels in this group.
Ambient-occlusion map darkening crevices where ambient light is blocked. Part of the brushed metal PBR set. Pair with the other channels in this group.
Height / displacement map used for parallax or true displacement of the surface. Part of the brushed metal PBR set. Pair with the other channels in this group.
Base-colour / albedo map: the diffuse reflectance with no lighting baked in. Part of the woven fabric PBR set. Pair with the other channels in this group.
Tangent-space normal map encoded from the surface height. Perturbs shading normals for detail without extra geometry. Part of the woven fabric PBR set. Pair with the other channels in this group.
Roughness map (black = glossy, white = matte) driving the microfacet spread of the BRDF. Part of the woven fabric PBR set. Pair with the other channels in this group.
Metallic map (black = dielectric, white = metal) selecting the reflectance model per texel. Part of the woven fabric PBR set. Pair with the other channels in this group.
Ambient-occlusion map darkening crevices where ambient light is blocked. Part of the woven fabric PBR set. Pair with the other channels in this group.
Height / displacement map used for parallax or true displacement of the surface. Part of the woven fabric PBR set. Pair with the other channels in this group.
Base-colour / albedo map: the diffuse reflectance with no lighting baked in. Part of the ceramic tiles PBR set. Pair with the other channels in this group.
Tangent-space normal map encoded from the surface height. Perturbs shading normals for detail without extra geometry. Part of the ceramic tiles PBR set. Pair with the other channels in this group.
Roughness map (black = glossy, white = matte) driving the microfacet spread of the BRDF. Part of the ceramic tiles PBR set. Pair with the other channels in this group.
Metallic map (black = dielectric, white = metal) selecting the reflectance model per texel. Part of the ceramic tiles PBR set. Pair with the other channels in this group.
Ambient-occlusion map darkening crevices where ambient light is blocked. Part of the ceramic tiles PBR set. Pair with the other channels in this group.
Height / displacement map used for parallax or true displacement of the surface. Part of the ceramic tiles PBR set. Pair with the other channels in this group.
Geometry inline, texture out of line: the image is a relative URI to a sibling PNG while the buffer is embedded, which is the mixed layout that trips asset packers expecting all-or-nothing. Download the PNG in this group with it.
The 64x64 two-colour checker referenced by the external-texture glTF in this group. Small, hard-edged and axis-aligned on purpose: UV seams, wrap mode and filter choices are all visible at a glance.
The same textured sphere with the PNG inlined as a base64 data URI in `images[0].uri`: a single portable text file. The variant that makes a glTF e-mailable and that some loaders quietly refuse.
The third texture-storage strategy: the PNG lives inside the GLB's BIN chunk as a bufferView, addressed by `mimeType` rather than a URI. This is what a GLB packer must produce, and extracting the image again is the round-trip test.
