summaryrefslogtreecommitdiff
path: root/doc
diff options
context:
space:
mode:
authorCosmic Linden <cosmic@lindenlab.com>2024-07-01 16:17:06 -0700
committerCosmic Linden <cosmic@lindenlab.com>2024-07-01 16:17:06 -0700
commit9ccab0df1499e8d029a49f8835bf2db70b2f7a8e (patch)
tree03658edd71b64c872ef3c460fb28b89f06768714 /doc
parente32f6426d5b0765272f7c08bbbb6780a2f2e1e0b (diff)
secondlife/viewer#1847: Add test plan for normal textures on PBR materials
Diffstat (limited to 'doc')
-rw-r--r--doc/testplans/pbr_materials.md12
1 files changed, 12 insertions, 0 deletions
diff --git a/doc/testplans/pbr_materials.md b/doc/testplans/pbr_materials.md
new file mode 100644
index 0000000000..f91e5fd454
--- /dev/null
+++ b/doc/testplans/pbr_materials.md
@@ -0,0 +1,12 @@
+# PBR Materials
+
+## KHR Texture Transforms
+
+Texture repeats for PBR materials on prims are based on the [KHR\_texture\_transform](https://github.com/KhronosGroup/glTF/tree/main/extensions/2.0/Khronos/KHR_texture_transform) spec, and thus should be expected to behave according to the spec.
+
+PBR materials should have approximately correct lighting based on the normal texture:
+
+- With default texture transforms, assuming the prim or model has correct normals and tangents
+- With a texture transform applied, especially rotation or negative scale
+- With a texture animation applied via `llSetTextureAnim`, especially a rotation animation
+ - Note: Texture animations are not guaranteed to loop when a PBR texture transform is applied