ppy.Veldrid.Spir-V SSBO binding issues.

[MrScautHD]

Hey i tried to bind my ssbo buffer with my shader.
And as i know from the community of Veldrid the version of SPIRV-Cross ppy.Veldrid uses has an issue with how it binds SSBOs.

Code:

struct Light {
    int type; // Type: (Direction = 0, Point = 1, Spot = 2).
    float range; // Range.
    float spotAngle; // SpotAngle.
    float _padding0; // Padding.
    vec4 position; // xyz: (Position), w: (Padding).
    vec4 direction; // xyz: (Direction), w: (Padding).
    vec4 color; // rgb: (Color), w: (Intensity).
};

layout(std430, set = 3, binding = 0) buffer LightBuffer {
    int lightCapacity; // The max number lights.
    int numOfLights; // Number of lights.
    vec4 ambientColor; // rgb: (Color), w: (Intensity).
    Light[] lights;
};

Error:

Unhandled exception. Veldrid.VeldridException: Failed to compile HLSL code: F:\projects\Bliss\src\Bliss.Test\bin\Debug\net9.0\Shader@0x000001C234CEBAD0(19,21-23): error X4509: UAV registers live in the same name space as outputs, so they must be bound to at least u1, manual bind to slot u0 failed

[smoogipoo]

Is this an upstream spirv-cross issue that would be fixed by upgrading it?

[MrScautHD]

i think so, yes.

[MrScautHD]

main issue: veldrid/veldrid-spirv#14
sub issue: veldrid/veldrid-spirv#15 (Here it was talked about how the new version could fix it)