2. Enhancements

This section describes the enhancements introduced in Ansys Speos 2025 R1 release.

Meshing

  • Speos simulation relies on the meshing that is extracted from the selected geometries. However, setting the meshing parameter to get an accurate representation of the geometries is not easy. In addition, some combinations of meshing parameters may lead to non-watertight result causing possible propagation error.

    Therefore, as of version 2025R1, new default meshing parameters values are applied upon creation of the following features, in order to provide a more relevant and simplified default meshing than prior versions.

    • Interactive, Direct, Inverse, LiDAR simulations

    • Light Box Export

    • Local Meshing

  • Meshing improvement regarding the Angle meshing setting: now you can set a 1° minimum angle. Before version 2025 R1, the minimum threshold was 12°.

Component

  • Speos Pattern: Speos Patterns used to created multiple instances of a same source are now compatible with Interactive simulations.

  • 3D Texture: Better management of 3D texture patterns construction on edges of support geometries.

Sensor

  • Physical Camera: Physical Camera sensors are now compatible with black-boxed Speos Light Boxes. Therefore, along with the encrypted Speos Light Box to restricts the access and protect the intellectual property:

    • No details about geometries inside

    • Only the bounding box of the complete system is displayed in the 3D view.

    • Ray tracing does not expose the impacts happening inside the Speos Light Box, without changing the optical path.

    • the *.OPTSequence file generated and used by the Physical Camera Sensor is encrypted.

  • Physical Camera: As technology evolves along with space constraints, lens systems such as periscope ones are introduced into new products. Physical Camera Sensor has been designed originally for any type of on-axis lens systems.

    As of version 2025 R1, you can benefit from the fast calculation of stray light contributions on off-axis lens systems.

  • Camera sensor: algorithm has been improved to avoid lag time when using a significant *.OPTDistortion Binary file.

    • Before, the Camera sensor was automatically computed every time a modification was done to the *.OPTDistortion Binary file.

    • Now, the Camera sensor needs to be manually computed to take into account the modification. If the Camera sensor is not manually computed, then simulations take the latest parameters into account.

Simulation

  • The GPU algorithm has been improved to generate more adequate results regarding the luminance analysis.

  • The GPU algorithm has been improved for a better grazing ray detection on GPU results.

  • The GPU algorithm has been improved to better manage the total internal reflection (TIR) for unpolished surfaces in simulation.

Optical Part Design

  • Light Guide:

    • Light Guide improvement regarding construction and migration to prevent light leakage at first prism and last prism of the guide.

    • Light Guide improvement: Width parameter is now compatible with the Control points and Input files mode in Hybrid operation.

    • Light Guide algorithm has been improved to allow the use of significant curvature of the guide curve.