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By Design

Votes

2

Found in

2019.4

2020.1.0b13

2020.2

Issue ID

1261269

Regression

No

Mesh with VertexAttribute.Position format set to Float16 does not receive any projection from the Projector

Camera

-

How to reproduce:
1. Open the user's attached "ProjectorFloat16-2020.1.zip" project
2. Open the "SampleScene" Scene
3. Observe the meshes in the Scene view

Expected result: Both meshes with Float16 and Float32 positions receive shadows from the Projector
Actual result: Left mesh with Float32 position receives shadows, Right mesh with Float16 position does not

Reproducible with: 2019.4.3f1, 2020.1.0b15, 2020.2.0a17
Could not test with: 2018.4.24f1 (VertexAttributeDescriptor not available)

Notes:
- The issue is reproducible in the Editor and on Windows, Mac build
- The issue is reproducible with both Projector/Light and Projector/Multiply materials

  1. Resolution Note:

    By design, user code was constructing vertex data with w=0 values for the position, and some shaders (Projector one of them) do not expect that. Fixing code to produce w=1 values fixes it.

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