public XPipeline(bool dynamicBatching, bool instancing, XPostProcessingStack defaultStack,
Texture2D ditherTexture, float ditherAnimationSpeed,
int shadowMapSize, float shadowDistance, float shadowFadeRange,
int shadowCascades, Vector3 shadowCascadeSplit)
{
GraphicsSettings.lightsUseLinearIntensity = true;
if (SystemInfo.usesReversedZBuffer)
{
worldToShadowCascadeMatrices[4].m33 = 1f;
}
if (dynamicBatching)
{
drawFlags = DrawRendererFlags.EnableDynamicBatching;
}
if (instancing)
{
drawFlags |= DrawRendererFlags.EnableInstancing;
}
this.defaultStack = defaultStack;
this.ditherTexture = ditherTexture;
if (ditherAnimationSpeed > 0f && Application.isPlaying)
{
ConfigureDitherAnimation(ditherAnimationSpeed);
}
this.shadowMapSize = shadowMapSize;
this.shadowDistance = shadowDistance;
globalShadowData.y = 1f / shadowFadeRange;
this.shadowCascades = shadowCascades;
this.shadowCascadeSplit = shadowCascadeSplit;
#if UNITY_EDITOR
Lightmapping.SetDelegate(lightmappingLightsDelegate);
#endif
}
void Render(ScriptableRenderContext context, Camera camera)
{
ScriptableCullingParameters cullingParameters;
if (!CullResults.GetCullingParameters(camera, out cullingParameters))
{
return;
}
cullingParameters.shadowDistance = Mathf.Min(shadowDistance, camera.farClipPlane);
#if UNITY_EDITOR
//SceneView 处理UI
if (camera.cameraType == CameraType.SceneView)
{
ScriptableRenderContext.EmitWorldGeometryForSceneView(camera);
}
#endif
CullResults.Cull(ref cullingParameters, context, ref cull);
//光照信息
if (cull.visibleLights.Count > 0)
{
ConfigureLights();
if (mainLightExists)
{
RenderCascadedShadows(context);
}
else
{
cameraBuffer.DisableShaderKeyword(cascadedShadowsHardKeyword);
cameraBuffer.DisableShaderKeyword(cascadedShadowsSoftKeyword);
}
if (shadowTileCount > 0)
{
RenderShadows(context);
}
else
{
cameraBuffer.DisableShaderKeyword(shadowsHardKeyWord);
cameraBuffer.DisableShaderKeyword(shadowsSoftKeyWord);
}
}
else
{
cameraBuffer.SetGlobalVector(lightIndicesOffsetAndCountID, Vector4.zero);
cameraBuffer.DisableShaderKeyword(cascadedShadowsHardKeyword);
cameraBuffer.DisableShaderKeyword(cascadedShadowsSoftKeyword);
cameraBuffer.DisableShaderKeyword(shadowsHardKeyWord);
cameraBuffer.DisableShaderKeyword(shadowsSoftKeyWord);
}
//注意Scene窗口如果没有启用光源需要注意
// if (camera.cameraType == CameraType.Game) //SceneView 光源个数有点问题
{
//阴影贴图是在常规场景之前渲染的，所以在渲染之前调用渲染阴影，但是在剔除之后
}
context.SetupCameraProperties(camera); //设置视图投影矩阵
var xPipelineCamera = camera.GetComponent <XPipelineCamera>();
XPostProcessingStack activeStack = xPipelineCamera ?
xPipelineCamera.PostProcessingStack : defaultStack;
if (activeStack)
{
cameraBuffer.GetTemporaryRT(cameraColorTextureId,
camera.pixelWidth, camera.pixelHeight, 0, FilterMode.Bilinear
);
cameraBuffer.GetTemporaryRT(cameraDepthTextureId,
camera.pixelWidth, camera.pixelHeight, 24, FilterMode.Point, RenderTextureFormat.Depth
);
cameraBuffer.SetRenderTarget(
cameraColorTextureId, RenderBufferLoadAction.DontCare, RenderBufferStoreAction.Store,
cameraDepthTextureId, RenderBufferLoadAction.DontCare, RenderBufferStoreAction.Store
);
}
CameraClearFlags clearFlags = camera.clearFlags;
cameraBuffer.ClearRenderTarget(
(clearFlags & CameraClearFlags.Depth) != 0,
(clearFlags & CameraClearFlags.Color) != 0,
camera.backgroundColor);
cameraBuffer.BeginSample("Render Camera");
cameraBuffer.SetGlobalVectorArray(visiableLightColorsId, visiableLightColors);
cameraBuffer.SetGlobalVectorArray(visiableLightDirectionsOrPositionsId, visiableLightDirectionsOrPositions);
cameraBuffer.SetGlobalVectorArray(visiableLightAttenuationsId, visiableLightAttenuations);
cameraBuffer.SetGlobalVectorArray(visiableLightSpotDirectionsId, visiableLightSpotDirections);
cameraBuffer.SetGlobalVectorArray(visibleLightOcclusionMasksId, visibleLightOcclusionMasks);
globalShadowData.z = 1f - cullingParameters.shadowDistance * globalShadowData.y;
cameraBuffer.SetGlobalVector(globalShadowDataId, globalShadowData);
context.ExecuteCommandBuffer(cameraBuffer);
cameraBuffer.Clear();
var drawSetting = new DrawRendererSettings(
camera, new ShaderPassName("SRPDefaultUnlit")
)
{
flags = drawFlags,
// rendererConfiguration = RendererConfiguration.PerObjectLightIndices8
};
//没有光源时，防止Light Indices崩溃
if (cull.visibleLights.Count > 0)
{
drawSetting.rendererConfiguration = RendererConfiguration.PerObjectLightIndices8;
}
drawSetting.rendererConfiguration |=
RendererConfiguration.PerObjectReflectionProbes |
RendererConfiguration.PerObjectLightmaps |
RendererConfiguration.PerObjectLightProbe |
RendererConfiguration.PerObjectLightProbeProxyVolume |
RendererConfiguration.PerObjectShadowMask |
RendererConfiguration.PerObjectOcclusionProbe |
RendererConfiguration.PerObjectOcclusionProbeProxyVolume;
//drawSetting.flags = drawFlags; //DrawRendererFlags.EnableDynamicBatching; //动态合批
drawSetting.sorting.flags = SortFlags.CommonOpaque;
var filterSettings = new FilterRenderersSettings(true)
{
renderQueueRange = RenderQueueRange.opaque
};
context.DrawRenderers(cull.visibleRenderers, ref drawSetting, filterSettings);
context.DrawSkybox(camera);
if (activeStack)
{
activeStack.RenderAfterOpaque(
postProcessingBufffer, cameraColorTextureId, cameraDepthTextureId,
camera.pixelWidth, camera.pixelHeight
);
context.ExecuteCommandBuffer(postProcessingBufffer);
postProcessingBufffer.Clear();
cameraBuffer.SetRenderTarget(
cameraColorTextureId,
RenderBufferLoadAction.Load, RenderBufferStoreAction.Store,
cameraDepthTextureId,
RenderBufferLoadAction.Load, RenderBufferStoreAction.Store
);
context.ExecuteCommandBuffer(cameraBuffer);
cameraBuffer.Clear();
}
drawSetting.sorting.flags = SortFlags.CommonTransparent;
filterSettings.renderQueueRange = RenderQueueRange.transparent;
context.DrawRenderers(cull.visibleRenderers, ref drawSetting, filterSettings);
DrawDefaultPipeline(context, camera);
//Post-Processing
if (activeStack)
{
activeStack.RenderAfterTransparent(
postProcessingBufffer, cameraColorTextureId, cameraDepthTextureId,
camera.pixelWidth, camera.pixelHeight
);
context.ExecuteCommandBuffer(postProcessingBufffer);
postProcessingBufffer.Clear();
cameraBuffer.ReleaseTemporaryRT(cameraColorTextureId);
cameraBuffer.ReleaseTemporaryRT(cameraDepthTextureId);
}
cameraBuffer.EndSample("Render Camera");
context.ExecuteCommandBuffer(cameraBuffer);
cameraBuffer.Clear();
context.Submit();
//提交上下文之后，释放渲染纹理
if (shadowMap)
{
RenderTexture.ReleaseTemporary(shadowMap);
shadowMap = null;
}
if (cascadedShadowMap)
{
RenderTexture.ReleaseTemporary(cascadedShadowMap);
cascadedShadowMap = null;
}
}