// If this behaviour is enabled, LateUpdate is called once per frame
// after all Update functions have been called.
public void LateUpdate()
{
if (!target)
{
return;
}
Vector3 from = transform.position;
Vector3 to = target.position;
float castDistance = Vector3.Distance(to, from);
// Mark all objects as not needing fade out
foreach (FadeOutLOSInfo fade in fadedOutObjects)
{
fade.needFadeOut = false;
}
Vector3[] offsets = new Vector3[] { new Vector3(0, 0, 0), new Vector3(0, occlusionRadius, 0), new Vector3(0, -occlusionRadius, 0), new Vector3(occlusionRadius, 0, 0), new Vector3(-occlusionRadius, 0, 0) };
// We cast 5 rays to really make sure even occluders that are partly occluding the player are faded out
foreach (Vector3 offset in offsets)
{
Vector3 relativeOffset = transform.TransformDirection(offset);
// Find all blocking objects which we want to hide
RaycastHit[] hits = Physics.RaycastAll(from + relativeOffset, to - from, castDistance, layerMask.value);
foreach (RaycastHit hit in hits)
{
if (hit.transform.gameObject == target.gameObject)
{
continue;
}
// Make sure we have a renderer
Renderer hitRenderer = hit.collider.renderer;
if (hitRenderer == null || !hitRenderer.enabled)
{
continue;
}
var info = FindLosInfo(hitRenderer);
// We are not fading this renderer already, so insert into faded objects map
if (info == null)
{
info = new FadeOutLOSInfo();
info.originalMaterials = hitRenderer.sharedMaterials;
info.alphaMaterials = new Material[info.originalMaterials.Length];
info.renderer = hitRenderer;
for (int i = 0; i < info.originalMaterials.Length; i++)
{
Material newMaterial = new Material(Shader.Find("Alpha/Diffuse"));
newMaterial.mainTexture = info.originalMaterials[i].mainTexture;
Color color = info.originalMaterials[i].color;
color.a = 1.0f;
newMaterial.color = color;
info.alphaMaterials[i] = newMaterial;
}
hitRenderer.sharedMaterials = info.alphaMaterials;
fadedOutObjects.Add(info);
}
// Just mark the renderer as needing fade out
else
{
info.needFadeOut = true;
}
}
}
// Now go over all renderers and do the actual fading!
float fadeDelta = fadeSpeed * Time.deltaTime;
for (int i = 0; i < fadedOutObjects.Count; i++)
{
var fade = fadedOutObjects[i];
// Fade out up to minimum alpha value
if (fade.needFadeOut)
{
foreach (Material alphaMaterial in fade.alphaMaterials)
{
float alpha = alphaMaterial.color.a;
alpha -= fadeDelta;
alpha = Mathf.Max(alpha, fadedOutAlpha);
Color color = alphaMaterial.color;
color.a = alpha;
alphaMaterial.color = color;
}
}
// Fade back in
else
{
var totallyFadedIn = 0;
foreach (Material alphaMaterial in fade.alphaMaterials)
{
float alpha = alphaMaterial.color.a;
alpha += fadeDelta;
alpha = Mathf.Min(alpha, 1.0f);
Color color = alphaMaterial.color;
color.a = alpha;
alphaMaterial.color = color;
if (alpha >= 0.99)
{
totallyFadedIn++;
}
}
// All alpha materials are faded back to 100%
// Thus we can switch back to the original materials
if (totallyFadedIn == fade.alphaMaterials.Length)
{
if (fade.renderer)
{
fade.renderer.sharedMaterials = fade.originalMaterials;
}
foreach (Material newMaterial in fade.alphaMaterials)
{
Destroy(newMaterial);
}
fadedOutObjects.RemoveAt(i);
i--;
}
}
}
}
// If this behaviour is enabled, LateUpdate is called once per frame
// after all Update functions have been called.
public void LateUpdate()
{
if (!target)
{
return;
}
Vector3 from = transform.position;
Vector3 to = target.position;
float castDistance = Vector3.Distance(to, from);
// Mark all objects as not needing fade out
foreach (FadeOutLOSInfo fade in fadedOutObjects)
{
fade.needFadeOut = false;
}
Vector3[] offsets = new Vector3[] { new Vector3(0, 0, 0), new Vector3(0, occlusionRadius, 0), new Vector3(0, -occlusionRadius, 0), new Vector3(occlusionRadius, 0, 0), new Vector3(-occlusionRadius, 0, 0) };
// We cast 5 rays to really make sure even occluders that are partly occluding the player are faded out
foreach (Vector3 offset in offsets)
{
Vector3 relativeOffset = transform.TransformDirection(offset);
// Find all blocking objects which we want to hide
RaycastHit[] hits = Physics.RaycastAll(from + relativeOffset, to - from, castDistance, layerMask.value);
foreach (RaycastHit hit in hits)
{
if (hit.transform.gameObject == target.gameObject)
{
continue;
}
// Make sure we have a renderer
Renderer hitRenderer = hit.collider.renderer;
if (hitRenderer == null || !hitRenderer.enabled)
{
continue;
}
var info = FindLosInfo(hitRenderer);
// We are not fading this renderer already, so insert into faded objects map
if (info == null)
{
info = new FadeOutLOSInfo();
info.originalMaterials = hitRenderer.sharedMaterials;
info.alphaMaterials = new Material[info.originalMaterials.Length];
info.renderer = hitRenderer;
for (int i = 0; i < info.originalMaterials.Length; i++)
{
Material newMaterial = new Material(Shader.Find("Alpha/Diffuse"));
newMaterial.mainTexture = info.originalMaterials[i].mainTexture;
Color color = info.originalMaterials[i].color;
color.a = 1.0f;
newMaterial.color = color;
info.alphaMaterials[i] = newMaterial;
}
hitRenderer.sharedMaterials = info.alphaMaterials;
fadedOutObjects.Add(info);
}
// Just mark the renderer as needing fade out
else
{
info.needFadeOut = true;
}
}
}
// Now go over all renderers and do the actual fading!
float fadeDelta = fadeSpeed * Time.deltaTime;
for (int i = 0; i < fadedOutObjects.Count; i++)
{
var fade = fadedOutObjects[i];
// Fade out up to minimum alpha value
if (fade.needFadeOut)
{
foreach (Material alphaMaterial in fade.alphaMaterials)
{
float alpha = alphaMaterial.color.a;
alpha -= fadeDelta;
alpha = Mathf.Max(alpha, fadedOutAlpha);
Color color = alphaMaterial.color;
color.a = alpha;
alphaMaterial.color = color;
}
}
// Fade back in
else
{
var totallyFadedIn = 0;
foreach (Material alphaMaterial in fade.alphaMaterials)
{
float alpha = alphaMaterial.color.a;
alpha += fadeDelta;
alpha = Mathf.Min(alpha, 1.0f);
Color color = alphaMaterial.color;
color.a = alpha;
alphaMaterial.color = color;
if (alpha >= 0.99)
{
totallyFadedIn++;
}
}
// All alpha materials are faded back to 100%
// Thus we can switch back to the original materials
if (totallyFadedIn == fade.alphaMaterials.Length)
{
if (fade.renderer)
{
fade.renderer.sharedMaterials = fade.originalMaterials;
}
foreach (Material newMaterial in fade.alphaMaterials)
{
Destroy(newMaterial);
}
fadedOutObjects.RemoveAt(i);
i--;
}
}
}
}
