Enum wgpu::QueryType[][src]

pub enum QueryType {
    Occlusion,
    PipelineStatistics(PipelineStatisticsTypes),
    Timestamp,
}
Expand description

Type of query contained in a QuerySet.

Variants

Occlusion

Query returns a single 64-bit number, serving as an occlusion boolean.

PipelineStatistics(PipelineStatisticsTypes)

Query returns up to 5 64-bit numbers based on the given flags.

See PipelineStatisticsTypes’s documentation for more information on how they get resolved.

Features::PIPELINE_STATISTICS_QUERY must be enabled to use this query type.

Tuple Fields of PipelineStatistics

0: PipelineStatisticsTypes
Timestamp

Query returns a 64-bit number indicating the GPU-timestamp where all previous commands have finished executing.

Must be multiplied by [Device::get_timestamp_period] to get the value in nanoseconds. Absolute values have no meaning, but timestamps can be subtracted to get the time it takes for a string of operations to complete.

Features::TIMESTAMP_QUERY must be enabled to use this query type.

Trait Implementations

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