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Stardust: draw at BeforeForwardAlpha (deferred cameras never run AfterForwardOpaque); probe checks the event, culling mask 1 and a near control; Main Menu drops the stale GravityCamera

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Both target cameras are deferred, so the AfterForwardOpaque buffer never drew. The render half of scene-stardust-uncullable now attaches-checks BeforeForwardAlpha, renders with cullingMask 1 (DrawProcedural is layer 0), and requires a near control (dust 100 below, size 5) to draw before the far probe is read, so a miss at 10000 can only be culling.
Builds: not compiled by this commit alone; verified in the Unity batchmode run reported with the cut.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Meta Vens 2026-10-16 05:46:50 +02:00
commit 1973b6d220
3 changed files with 20 additions and 14 deletions
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1
Assets/Scenes/Main Menu.unity
View file

@ -892,7 +892,6 @@ MonoBehaviour:
NebulaTint: {fileID: 8400000, guid: d196505464047f04a97f28689041209b, type: 2}
Heightmap: {fileID: 8400000, guid: 2fc21a9d3e9647948b56e384cd9378b3, type: 2}
ParticleColors: {fileID: 2800000, guid: 56db63da398b2d04394ddbccedce943c, type: 3}
GravityCamera: {fileID: 2103364771}
--- !u!114 &750375536
MonoBehaviour:
m_ObjectHideFlags: 0

31
Assets/Scripts/Editor/FlowFieldSceneVerify.cs
View file

@ -156,19 +156,19 @@ namespace Aetheria.EditorTools
{
var camera = dust.TargetCamera;
if (camera == null) { Fail("scene-stardust-uncullable", "Stardust has no TargetCamera"); return; }
var attached = camera.GetCommandBuffers(CameraEvent.AfterForwardOpaque).Count(buffer => buffer.name == "Stardust");
var attached = camera.GetCommandBuffers(CameraEvent.BeforeForwardAlpha).Count(buffer => buffer.name == "Stardust");
if (attached != 1) Fail("scene-stardust-uncullable", $"{attached} Stardust command buffers on the target camera, expected 1");
var particles = (ComputeBuffer) bufferField.GetValue(dust);
var side = Mathf.RoundToInt(Mathf.Sqrt(particles.count));
float[] Layout(float size)
float[] Layout(float size, Vector3 centre, float below)
{
var data = new float[particles.count * 7];
for (var i = 0; i < particles.count; i++)
{
data[i * 7 + 0] = ((i % side) - side / 2f) * 4f;
data[i * 7 + 1] = -50000f;
data[i * 7 + 2] = ((i / side) - side / 2f) * 4f;
data[i * 7 + 0] = centre.x + ((i % side) - side / 2f) * 4f;
data[i * 7 + 1] = centre.y - below;
data[i * 7 + 2] = centre.z + ((i / side) - side / 2f) * 4f;
data[i * 7 + 3] = data[i * 7 + 4] = data[i * 7 + 5] = 1f;
data[i * 7 + 6] = size;
}
@ -183,10 +183,10 @@ namespace Aetheria.EditorTools
var previous = RenderTexture.active;
// Image effects on the camera would write their own frame over the dust; only the dust draw is under test.
var effects = camera.GetComponents<MonoBehaviour>().Where(behaviour => behaviour.enabled).ToArray();
Color32[] Render(float size)
Color32[] Render(float size, Vector3 centre, float below)
{
Call(dust, "Update"); // on a bounded draw this queues the draw for the camera; here it dispatches the compute
particles.SetData(Layout(size));
particles.SetData(Layout(size, centre, below));
camera.Render();
RenderTexture.active = texture;
readback.ReadPixels(new Rect(0, 0, 64, 64), 0, 0);
@ -196,14 +196,21 @@ namespace Aetheria.EditorTools
try
{
foreach (var effect in effects) effect.enabled = false;
transform.SetPositionAndRotation(new Vector3(0f, -40000f, 0f), Quaternion.Euler(90f, 0f, 0f));
camera.farClipPlane = 30000f;
camera.clearFlags = CameraClearFlags.SolidColor;
camera.backgroundColor = Color.black;
camera.cullingMask = 0;
camera.cullingMask = 1;
camera.targetTexture = texture;
var withDust = Render(400f); // the material scales a quad by distance^.33, so at this range it needs this size to cover pixels
var without = Render(0f);
// control: the camera where the scene put it, dust 100 below, inside any box a hand-set extent would give
transform.SetPositionAndRotation(position, Quaternion.Euler(90f, 0f, 0f));
camera.farClipPlane = 1000f;
var nearWith = Render(5f, position, 100f); var nearWithout = Render(0f, position, 100f);
var nearDiff = 0; for (var i = 0; i < nearWith.Length; i++) if (!nearWith[i].Equals(nearWithout[i])) nearDiff++;
Debug.Log($"{Tag} stardust near-control differing pixels={nearDiff}");
if (nearDiff == 0) Fail("scene-stardust-uncullable", "control: dust 100 below the camera drew no pixels");
transform.SetPositionAndRotation(new Vector3(0f, -40000f, 0f), Quaternion.Euler(90f, 0f, 0f));
camera.farClipPlane = 30000f;
var withDust = Render(400f, transform.position, 10000f); // the material scales a quad by distance^.33, so at this range it needs this size to cover pixels
var without = Render(0f, transform.position, 10000f);
var differing = 0;
for (var i = 0; i < withDust.Length; i++)
if (!withDust[i].Equals(without[i])) differing++;

2
Assets/Shaders/Compute/Stardust/Stardust.cs
View file

@ -59,7 +59,7 @@ public class Stardust : MonoBehaviour
// The dust is drawn by a command buffer on TargetCamera: a camera replays its buffers at their event and never culls them,
// so the draw needs no bounds and no extent can fall short of how deep the field is.
private CommandBuffer _draw;
private const CameraEvent DrawEvent = CameraEvent.AfterForwardOpaque;
private const CameraEvent DrawEvent = CameraEvent.BeforeForwardAlpha;
#endregion