PortraitRender.cs

PortraitRender.cs

    private void RenderPortrait()
    {
        if (regiment == null)
            return;

        // TODO: portrait to config
        var first = regiment.xGetFirstNonNullUnit();
        if (first == null)
            return;

        var rendererCenter = Vector3.zero;
        var rendererLargest = 0.0f;
        var renderers = first.gameObject.GetComponentsInChildren<Renderer>();
        var layers = new Dictionary<Renderer, LayerMask>();

        foreach (var renderer in renderers)
        {
            layers.Add(renderer, renderer.gameObject.layer);
            renderer.gameObject.layer = LayerMask.NameToLayer("Portrait");
            rendererCenter += renderer.bounds.center;
            rendererLargest = renderer.bounds.size.magnitude;
        }
        rendererCenter /= Mathf.Max(1.0f, (float)renderers.Length);

        var firstLayer = first.gameObject.layer;

        first.gameObject.layer = LayerMask.NameToLayer("Portrait");

        portraitCamera.gameObject.SetActive(true);

        var camPos = rendererCenter + regiment.centerTransform.forward * rendererLargest * 1.2f;
        var camLook = rendererCenter;

        portraitCamera.transform.position = camPos;
        portraitCamera.transform.LookAt(camLook);

        portraitCamera.targetTexture = portraitRT;
        portraitCamera.Render();

        RenderTexture.active = portraitRT;

        portraitTexture.ReadPixels(new Rect(0, 0, 128, 128), 0, 0, true);
        portraitTexture.Apply(true, false);

        RenderTexture.active = null;

        portraitCamera.targetTexture = null;
        portraitCamera.gameObject.SetActive(false);

        portraitSprite = Sprite.Create(portraitTexture, new Rect(0, 0, 128, 128), Vector2.zero);

        imagePortrait.sprite = portraitSprite;
        imagePortrait.overrideSprite = portraitSprite;

        first.gameObject.layer = firstLayer;

        foreach (var renderer in renderers)
            renderer.gameObject.layer = layers[renderer];
    }