Shader:getWorkgroupSize

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Returns the workgroup size of a compute shader. The workgroup size defines how many times a compute shader is invoked for each workgroup dispatched by Pass:compute.

x, y, z = Shader:getWorkgroupSize()

Notes

For example, if the workgroup size is 8x8x1 and 16x16x16 workgroups are dispatched, then the compute shader will run 16 * 16 * 16 * (8 * 8 * 1) = 262144 times.

The maximum workgroup size is hardware-specific, and is given by the workgroupSize and totalWorkgroupSize limit in lovr.graphics.getLimits.

See also

• Pass:compute
• lovr.graphics.getLimits
• Shader