| Parameter | Description |
|---|---|
| context | Device context for computation and memory operations. |
| positionOffset | Starting index in the probe position buffer. |
| positionCount | Number of probe positions to process. |
| sampleCount | Number of samples to take per probe. |
| ignoreEnvironment | If true, excludes environment lighting from the indirect contribution calculation. |
| radianceEstimateOut | Output buffer slice that the indirect radiance estimate is written into, encoded as spherical harmonics coefficients. |
void Result indicating success or failure with detailed error information.
Computes indirect lighting contribution at probe positions using spherical sampling and path tracing.
This method performs multi-bounce global illumination calculations by tracing rays from each probe position and accumulating light bounces through the scene. The number of bounces is controlled by the bounce count parameter set in Prepare.
Indirect radiance includes contribution from:
Higher sample counts and bounce counts significantly improve quality but increase computation time.
// Extract scene data bool result = InputExtraction.ExtractFromScene(out var input); Assert.IsTrue(result);
// Create context and world using var context = new RadeonRaysContext(); Assert.IsTrue(context.Initialize()); var world = new RadeonRaysWorld();
// Populate world with scene data using var progress = new BakeProgressState(); var worldResult = InputExtraction.PopulateWorld(input, progress, context, world); Assert.IsTrue(worldResult);
// Create integrator var integrator = new RadeonRaysProbeIntegrator(); integrator.SetProgressReporter(progress);
// Prepare probe positions var probePositions = new NativeArray<Vector3>(64, Allocator.Persistent); // ... fill probe positions ...
BufferID posBuffer = context.CreateBuffer(64, 12); // Vector3 = 12 bytes var posSlice = new BufferSlice<Vector3>(posBuffer, 0); context.WriteBuffer(posSlice, probePositions);
// Prepare integrator. integrator.Prepare(context, world, posSlice, 0.1f, 2);
// Compute indirect lighting var indirectResult = integrator.IntegrateIndirectRadiance(context, 0, probeCount, 2048, false, indirectBuffer);
// Cleanup integrator.Dispose(); context.DestroyBuffer(posBuffer); context.DestroyBuffer(indirectBuffer); probePositions.Dispose();