# Paramters Tuning

You will notice that there are a set of parameters on the `SSF_LoadParticlesFromParticleSystem` inspector:

<figure><img src="https://3104447311-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqQK3rCw0tfUWZcNKwUsY%2Fuploads%2FPWd29FFALXgPzj5rMF4U%2F1730789043240.png?alt=media&#x26;token=2e852891-ef70-46cc-acb5-2819561a598b" alt=""><figcaption></figcaption></figure>

The meaning of these parameters are as follows:

| Name                         | Description                                                                                                                                                            |
| ---------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| ParticleBufferUpdateInterval | The interval for updating particle data to GPU, <0 means update every frame. Adjust this value to your preferred visual frame rate                                     |
| Thickness                    | The thickness of the liquid. The higher the value, the more precipitated and solid the color will be visually.                                                         |
| Noise                        | The detail turbulence of the surface. The higher the value, the more turbulence the surface will show. It is implemented by adding perturbation to the surface normal. |
| Render Params                | Fluid surface rendering related parameters are listed separately below and may change with version iterations                                                          |

### Render Params

<figure><img src="https://3104447311-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqQK3rCw0tfUWZcNKwUsY%2Fuploads%2FTWguBI3kzWSbKS68LEnq%2F1730786052008.png?alt=media&#x26;token=5c9d8c4f-c7ad-49cb-b525-c025904082cb" alt=""><figcaption></figcaption></figure>

| Name                           | Description                                                                                                                         |
| ------------------------------ | ----------------------------------------------------------------------------------------------------------------------------------- |
| IsTransparent                  | 0 for traditional blinn-phong rendering, 1 for fluid rendering, value in-between means blending                                     |
| Ior                            | Refractive Index of Fluid (1.33 for water...)                                                                                       |
| Smoothness                     | **higher** value for **more** smoothness                                                                                            |
| Fresnel Power                  | **higher** value gives **more** refraction                                                                                          |
| Min/Max Reflection Ratio       | this constraints the amount of reflection, **if no reflection is needed,  just set them to 0,** vice versa, **1 for no refraction** |
| Ambient/Diffuse/Specular Color | Very traditional Blinn-phong model                                                                                                  |

### Here's some comparisions on differnt paramters.

<div><figure><img src="https://3104447311-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqQK3rCw0tfUWZcNKwUsY%2Fuploads%2FSnB59MkOT0BQloKy3a3A%2FImage%20Sequence_009_0000.jpg?alt=media&#x26;token=f462003d-1938-431e-800a-742677b1b3f2" alt=""><figcaption><p>Non trasparent</p></figcaption></figure> <figure><img src="https://3104447311-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqQK3rCw0tfUWZcNKwUsY%2Fuploads%2FRuKY2gVv5NMf8qLPVI28%2FImage%20Sequence_011_0000.jpg?alt=media&#x26;token=c543214b-5a24-4142-9329-76df41337d4f" alt=""><figcaption><p>transparent</p></figcaption></figure></div>

<div><figure><img src="https://3104447311-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqQK3rCw0tfUWZcNKwUsY%2Fuploads%2FUmRDELGtSsohU2WkpjjI%2FImage%20Sequence_012_0000.jpg?alt=media&#x26;token=1eb90f66-d5ae-42b1-914d-ac7437aaed3a" alt=""><figcaption><p>high thickness</p></figcaption></figure> <figure><img src="https://3104447311-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqQK3rCw0tfUWZcNKwUsY%2Fuploads%2FPxqXFSxLvcrWF75MmPuw%2FImage%20Sequence_011_0000.jpg?alt=media&#x26;token=5eea7dde-3c85-44bb-b166-4c926cb67995" alt=""><figcaption><p>low thickness</p></figcaption></figure></div>

<div><figure><img src="https://3104447311-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqQK3rCw0tfUWZcNKwUsY%2Fuploads%2FzufwhtojQxVXSDKJyQGD%2FImage%20Sequence_013_0000.jpg?alt=media&#x26;token=dc5b8ccd-fd90-41d1-b051-e9d240e36630" alt=""><figcaption><p>no reflection(pure refraction)</p></figcaption></figure> <figure><img src="https://3104447311-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqQK3rCw0tfUWZcNKwUsY%2Fuploads%2FUmRDELGtSsohU2WkpjjI%2FImage%20Sequence_012_0000.jpg?alt=media&#x26;token=1eb90f66-d5ae-42b1-914d-ac7437aaed3a" alt=""><figcaption><p>reflection and refraction</p></figcaption></figure></div>

<div><figure><img src="https://3104447311-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqQK3rCw0tfUWZcNKwUsY%2Fuploads%2FIvdNzuOYR6yAW3b6lVAo%2FImage%20Sequence_014_0000.jpg?alt=media&#x26;token=d68dcd07-4849-4751-bbbc-9a40c8b45afc" alt=""><figcaption><p>no reflection, high fresnel power</p></figcaption></figure> <figure><img src="https://3104447311-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqQK3rCw0tfUWZcNKwUsY%2Fuploads%2FzufwhtojQxVXSDKJyQGD%2FImage%20Sequence_013_0000.jpg?alt=media&#x26;token=dc5b8ccd-fd90-41d1-b051-e9d240e36630" alt=""><figcaption><p>no reflection, normal fresnel power</p></figcaption></figure></div>
