/// <summary>
/// Computes the rule used for toggling renderer shadow casting.
/// </summary>
/// <param name="profile">Profile used for size and distance thresholds needed for the rule.</param>
/// <param name="viewportSize">Diagonal viewport size of the renderer.</param>
/// <param name="distanceToCamera">Distance from renderer to camera.</param>
/// <param name="shadowMapTexelSize">Shadow map bounding box size in texels.</param>
/// <returns>True if renderer should have shadow, false otherwise.</returns>
internal static bool TestRendererShadowRule(CullingControllerProfile profile, float viewportSize, float distanceToCamera, float shadowMapTexelSize)
{
bool shouldHaveShadow = distanceToCamera < profile.shadowDistanceThreshold;
shouldHaveShadow |= viewportSize > profile.shadowRendererSizeThreshold;
shouldHaveShadow &= shadowMapTexelSize > profile.shadowMapProjectionSizeThreshold;
return(shouldHaveShadow);
}
public float shadowMapProjectionSizeThreshold; //
/// <summary>
/// Performs a linear interpolation between the values of two CullingControllerProfiles.
/// Used for controlling the settings panel slider.
/// </summary>
/// <param name="p1">Starting profile</param>
/// <param name="p2">Ending profile</param>
/// <param name="t">Time value for the linear interpolation.</param>
/// <returns>A new CullingControllerProfile with the interpolated values.</returns>
public static CullingControllerProfile Lerp(CullingControllerProfile p1, CullingControllerProfile p2, float t)
{
return(new CullingControllerProfile
{
visibleDistanceThreshold = Mathf.Lerp(p1.visibleDistanceThreshold, p2.visibleDistanceThreshold, t),
shadowDistanceThreshold = Mathf.Lerp(p1.shadowDistanceThreshold, p2.shadowDistanceThreshold, t),
emissiveSizeThreshold = Mathf.Lerp(p1.emissiveSizeThreshold, p2.emissiveSizeThreshold, t),
opaqueSizeThreshold = Mathf.Lerp(p1.opaqueSizeThreshold, p2.opaqueSizeThreshold, t),
shadowRendererSizeThreshold = Mathf.Lerp(p1.shadowRendererSizeThreshold, p2.shadowRendererSizeThreshold, t),
shadowMapProjectionSizeThreshold = Mathf.Lerp(p1.shadowMapProjectionSizeThreshold, p2.shadowMapProjectionSizeThreshold, t)
});
}
/// <summary>
/// Computes the rule used for toggling renderers visibility.
/// </summary>
/// <param name="profile">Profile used for size and distance thresholds needed for the rule.</param>
/// <param name="viewportSize">Diagonal viewport size of the renderer.</param>
/// <param name="distanceToCamera">Distance to camera of the renderer.</param>
/// <param name="boundsContainsCamera">Renderer bounds contains camera?</param>
/// <param name="isOpaque">Renderer is opaque?</param>
/// <param name="isEmissive">Renderer is emissive?</param>
/// <returns>True if renderer should be visible, false if otherwise.</returns>
internal static bool TestRendererVisibleRule(CullingControllerProfile profile, float viewportSize, float distanceToCamera, bool boundsContainsCamera, bool isOpaque, bool isEmissive)
{
bool shouldBeVisible = distanceToCamera < profile.visibleDistanceThreshold || boundsContainsCamera;
if (isEmissive)
{
shouldBeVisible |= viewportSize > profile.emissiveSizeThreshold;
}
if (isOpaque)
{
shouldBeVisible |= viewportSize > profile.opaqueSizeThreshold;
}
return(shouldBeVisible);
}
/// <summary>
/// Process all sceneObject renderers with the parameters set by the given profile.
/// </summary>
/// <param name="profile">any CullingControllerProfile</param>
/// <returns>IEnumerator to be yielded.</returns>
internal IEnumerator ProcessProfile(CullingControllerProfile profile)
{
Renderer[] renderers;
// If profile matches the skinned renderer profile in settings,
// the skinned renderers are going to be used.
if (profile == settings.rendererProfile)
{
renderers = objectsTracker.GetRenderers();
}
else
{
renderers = objectsTracker.GetSkinnedRenderers();
}
for (var i = 0; i < renderers.Length; i++)
{
if (timeBudgetCount > settings.maxTimeBudget)
{
timeBudgetCount = 0;
yield return(null);
}
Renderer r = renderers[i];
if (r == null)
{
continue;
}
bool rendererIsInIgnoreLayer = ((1 << r.gameObject.layer) & settings.ignoredLayersMask) != 0;
if (rendererIsInIgnoreLayer)
{
SetCullingForRenderer(r, true, true);
continue;
}
float startTime = Time.realtimeSinceStartup;
//NOTE(Brian): Need to retrieve positions every frame to take into account
// world repositioning.
Vector3 playerPosition = CommonScriptableObjects.playerUnityPosition;
Bounds bounds = r.GetSafeBounds();
Vector3 boundingPoint = bounds.ClosestPoint(playerPosition);
float distance = Vector3.Distance(playerPosition, boundingPoint);
bool boundsContainsPlayer = bounds.Contains(playerPosition);
float boundsSize = bounds.size.magnitude;
float viewportSize = (boundsSize / distance) * Mathf.Rad2Deg;
bool isEmissive = IsEmissive(r);
bool isOpaque = IsOpaque(r);
float shadowTexelSize = ComputeShadowMapTexelSize(boundsSize, urpAsset.shadowDistance, urpAsset.mainLightShadowmapResolution);
bool shouldBeVisible = TestRendererVisibleRule(profile, viewportSize, distance, boundsContainsPlayer, isOpaque, isEmissive);
bool shouldHaveShadow = TestRendererShadowRule(profile, viewportSize, distance, shadowTexelSize);
if (r is SkinnedMeshRenderer skr)
{
Material mat = skr.sharedMaterial;
bool isAvatarRenderer = false;
if (mat != null && mat.shader != null)
{
isAvatarRenderer = mat.shader.name == "DCL/Toon Shader";
}
if (isAvatarRenderer)
{
shouldHaveShadow &= TestAvatarShadowRule(profile, distance);
}
skr.updateWhenOffscreen = TestSkinnedRendererOffscreenRule(settings, distance);
}
if (OnDataReport != null)
{
if (!shouldBeVisible && !hiddenRenderers.Contains(r))
{
hiddenRenderers.Add(r);
}
if (shouldBeVisible && !shouldHaveShadow && !shadowlessRenderers.Contains(r))
{
shadowlessRenderers.Add(r);
}
}
SetCullingForRenderer(r, shouldBeVisible, shouldHaveShadow);
#if UNITY_EDITOR
DrawDebugGizmos(shouldBeVisible, bounds, boundingPoint);
#endif
timeBudgetCount += Time.realtimeSinceStartup - startTime;
}
}
internal static bool TestAvatarShadowRule(CullingControllerProfile profile, float avatarDistance)
{
return(avatarDistance < profile.maxShadowDistanceForAvatars);
}
