Raycast "Is Hit" returns inconsistent result in Simulation Zone #110867

New Issue

NDPZ · 2023-08-07T06:04:16+02:00

NDPZ commented

2023-08-07 06:04:16 +02:00

System Information
Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 2060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 531.79

Blender Version
Broken: version: 3.6.0, branch: blender-v3.6-release, commit date: 2023-06-27 08:08, hash: c7fc78b81ecb

Short description of error
Output "Is Hit" does not always return a hit when the position is animated through simulation nodes.

In the case shown in the video, the "Is Hit" does not always appear on the "Viewer Node" nor return hit for the node labeled "Switch (Teleport left and up)"
But it correctly seems to return "Is Hit" for the node labered "Switch (Reflect or keep CurrentVelocity)" (which changes direction of movement).

The intended behavior is for the points to accelerate downwards, and upon colliding with the plane: reflect the velocity along the plane's normal, and add the vector (0, 1, 1) to its position.
Instead, for the first few "collisions", only the reflection seems to occur (no teleport).

Exact steps for others to reproduce the error

Open attached .blend file
Click on the first Viewer Node (the one with the value linked to "Is Hit")
Run animation

Note that the point is correctly reflected (indicating that "Is Hit" works in this case).
But the point is not always teleported.

( ps: a spherecast node (thicker raycast) would be incredibly useful for simulations 😄. Unity implements these: https://docs.unity3d.com/ScriptReference/Physics.SphereCast )

**System Information** Operating system: Windows-10-10.0.19045-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 2060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 531.79 **Blender Version** Broken: version: 3.6.0, branch: blender-v3.6-release, commit date: 2023-06-27 08:08, hash: `c7fc78b81ecb` **Short description of error** Output "Is Hit" does not always return a hit when the position is animated through simulation nodes. <video src="/attachments/626dce7f-730b-4600-ba86-af946e59667e" title="2023-08-06 23-36-32.mp4" controls></video> In the case shown in the video, the "Is Hit" does not always appear on the "Viewer Node" nor return hit for the node labeled "Switch (Teleport left and up)" But it correctly seems to return "Is Hit" for the node labered "Switch (Reflect or keep CurrentVelocity)" (which changes direction of movement). The intended behavior is for the points to accelerate downwards, and upon colliding with the plane: reflect the velocity along the plane's normal, and add the vector (0, 1, 1) to its position. Instead, for the first few "collisions", only the reflection seems to occur (no teleport). **Exact steps for others to reproduce the error** - Open attached .blend file - Click on the first `Viewer Node` (the one with the value linked to "Is Hit") - Run animation Note that the point is correctly reflected (indicating that "Is Hit" works in this case). But the point is not always teleported. ( ps: a spherecast node (thicker raycast) would be incredibly useful for simulations 😄. Unity implements these: https://docs.unity3d.com/ScriptReference/Physics.SphereCast )

2023-08-06 23-36-48.mp4

4.0 MiB

RaycastBugTest.blend

1.1 MiB

nodes.png

102 KiB

2023-08-06 23-36-32.mp4

3.3 MiB