void ApplyLights(ref ScriptableRenderContext context, ref CullingResults cullingResults)
{
colorsBuffer = CreateBuffer(colors);
ShaderInput.SetLightsColors(buffer, colorsBuffer);
positionsBuffer = CreateBuffer(positions);
ShaderInput.SetLightsPositions(buffer, positionsBuffer);
spotDirectionsBuffer = CreateBuffer(spotDirections);
ShaderInput.SetLightsSpotDirections(buffer, spotDirectionsBuffer);
attenuationsBuffer = CreateBuffer(attenuations);
ShaderInput.SetLightsAttenuations(buffer, attenuationsBuffer);
if (cullingResults.lightAndReflectionProbeIndexCount >= 1)
{
lightIndicesBuffer = new ComputeBuffer(cullingResults.lightAndReflectionProbeIndexCount, 4);
cullingResults.FillLightAndReflectionProbeIndices(lightIndicesBuffer);
ShaderInput.SetLightIndices(buffer, lightIndicesBuffer);
}
SubmitBuffer(ref context, buffer);
}
public void SetupPerObjectLightIndices(ref CullingResults cullResults, ref LightData lightData)
{
if (lightData.additionalLightsCount == 0)
{
return;
}
var visibleLights = lightData.visibleLights;
var perObjectLightIndexMap = cullResults.GetLightIndexMap(Allocator.Temp);
int directionalLightsCount = 0;
int additionalLightsCount = 0;
// Disable all directional lights from the perobject light indices
// Pipeline handles them globally.
for (int i = 0; i < visibleLights.Length; ++i)
{
if (additionalLightsCount >= maxVisibleAdditionalLights)
{
break;
}
VisibleLight light = visibleLights[i];
if (light.lightType == LightType.Directional)
{
perObjectLightIndexMap[i] = -1;
++directionalLightsCount;
}
else
{
perObjectLightIndexMap[i] -= directionalLightsCount;
++additionalLightsCount;
}
}
// Disable all remaining lights we cannot fit into the global light buffer.
for (int i = directionalLightsCount + additionalLightsCount; i < visibleLights.Length; ++i)
{
perObjectLightIndexMap[i] = -1;
}
cullResults.SetLightIndexMap(perObjectLightIndexMap);
perObjectLightIndexMap.Dispose();
// if not using a compute buffer, engine will set indices in 2 vec4 constants
// unity_4LightIndices0 and unity_4LightIndices1
if (useStructuredBufferForLights)
{
int lightIndicesCount = cullResults.lightAndReflectionProbeIndexCount;
if (lightIndicesCount > 0)
{
if (perObjectLightIndices == null)
{
perObjectLightIndices = new ComputeBuffer(lightIndicesCount, sizeof(int));
}
else if (perObjectLightIndices.count < lightIndicesCount)
{
perObjectLightIndices.Release();
perObjectLightIndices = new ComputeBuffer(lightIndicesCount, sizeof(int));
}
cullResults.FillLightAndReflectionProbeIndices(perObjectLightIndices);
}
}
}