TraceMotionRay¶

Description¶

Traces a ray with motion blur support through the acceleration structure.

Signature¶

void TraceMotionRay<payload_t>(
    RaytracingAccelerationStructure AccelerationStructure,
    uint RayFlags,
    uint InstanceInclusionMask,
    uint RayContributionToHitGroupIndex,
    uint MultiplierForGeometryContributionToHitGroupIndex,
    uint MissShaderIndex,
    RayDesc Ray,
    float CurrentTime,
    inout payload_t Payload);

Generic Parameters¶

payload_t¶

Parameters¶

AccelerationStructure : RaytracingAccelerationStructure ¶

The acceleration structure to traverse

RayFlags : uint¶

Flags controlling ray behavior

InstanceInclusionMask : uint¶

Mask for filtering instance visibility

RayContributionToHitGroupIndex : uint¶

Offset for hit group indexing

MultiplierForGeometryContributionToHitGroupIndex : uint¶

Multiplier for geometry-based hit group indexing

MissShaderIndex : uint¶

Index of the miss shader to execute if no hit is found

Ray : RayDesc ¶

Description of the ray to trace

CurrentTime : float¶

Time value for motion blur interpolation

Payload : payload_t ¶

Structure for passing data between shaders

Remarks¶

Extended version of TraceRay with motion blur support

Availability and Requirements¶

Defined for the following targets:

glsl¶

Available in stages: raygen, closesthit, miss.

spirv¶