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Generate flat normals in shader #609

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Generate flat normals in shader #609

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6b159f8
First commit
david-lively Sep 23, 2025
3b83b52
Added a few things to gitignore
david-lively Sep 25, 2025
6f506e0
Merging generate-tangents branch
david-lively Sep 25, 2025
0fbb57b
Added caching for temporary normals when generating tangents.
david-lively Sep 25, 2025
8a27e48
Formatting and changed assert message
david-lively Sep 25, 2025
3b18aa6
Updated change log
david-lively Sep 25, 2025
0ebc920
Formatting
david-lively Sep 25, 2025
87a94fc
Stashing debug changes
david-lively Sep 26, 2025
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3 changes: 3 additions & 0 deletions .gitignore
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Original file line number Diff line number Diff line change
Expand Up @@ -25,3 +25,6 @@ libCesiumForUnityNative-*.so.meta
libCesiumForUnityNative-*.dylib
libCesiumForUnityNative-*.dylib.meta
Documentation~/Reference/
bin.meta
obj.meta

2 changes: 2 additions & 0 deletions CHANGES.md
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Expand Up @@ -6,6 +6,8 @@

- Added an option to `Cesium3DTileset` to enable tangent generation on the CPU for any tiles that are missing them.

- Flat normals are now generated in the pixel shader when rendering lit models that do not include normals.

## v1.18.0 - 2025-09-02

##### Additions :tada:
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11 changes: 8 additions & 3 deletions Runtime/Resources/CesiumDefaultTilesetMaterial.mat
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Expand Up @@ -23,13 +23,15 @@ Material:
m_Name: CesiumDefaultTilesetMaterial
m_Shader: {fileID: -6465566751694194690, guid: 407c0cff68611ac46a65eec87a5203f5,
type: 3}
m_Parent: {fileID: 0}
m_ModifiedSerializedProperties: 0
m_ValidKeywords:
- _ALPHATEST_ON
- _BUILTIN_ALPHATEST_ON
- _BUILTIN_AlphaClip
m_InvalidKeywords:
- _DISABLE_SSR_TRANSPARENT
- _DOUBLESIDED_ON
m_InvalidKeywords: []
m_LightmapFlags: 2
m_EnableInstancingVariants: 0
m_DoubleSidedGI: 1
Expand All @@ -43,6 +45,7 @@ Material:
- TransparentBackface
- RayTracingPrepass
- MOTIONVECTORS
m_LockedProperties:
m_SavedProperties:
serializedVersion: 3
m_TexEnvs:
Expand Down Expand Up @@ -101,7 +104,7 @@ Material:
- _AlphaCutoffEnable: 1
- _AlphaDstBlend: 0
- _AlphaSrcBlend: 1
- _AlphaToMask: 0
- _AlphaToMask: 1
- _AlphaToMaskInspectorValue: 0
- _BUILTIN_AlphaClip: 1
- _BUILTIN_Blend: 0
Expand All @@ -116,6 +119,7 @@ Material:
- _BUILTIN_ZWriteControl: 0
- _Blend: 0
- _BlendMode: 0
- _BlendModePreserveSpecular: 0
- _CastShadows: 1
- _ConservativeDepthOffsetEnable: 0
- _Cull: 0
Expand Down Expand Up @@ -168,6 +172,7 @@ Material:
- _ZWrite: 1
- _ZWriteControl: 0
- _baseColorTextureCoordinateIndex: 0
- _computeFlatNormals: 0
- _emissiveTextureCoordinateIndex: 0
- _metallicRoughnessTextureCoordinateIndex: 0
- _normalMapScale: 0
Expand Down Expand Up @@ -222,4 +227,4 @@ MonoBehaviour:
m_Script: {fileID: 11500000, guid: d0353a89b1f911e48b9e16bdc9f2e058, type: 3}
m_Name:
m_EditorClassIdentifier:
version: 5
version: 7
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