// public int createdContainerCount;
// public int releasedContainerCount;
public void Get(ShadowRenderingRequest request, ref ShadowContainer container)
{
if (float.IsNaN(request.dimensions.x) || request.dimensions.x < 1 ||
float.IsNaN(request.dimensions.y) || request.dimensions.y < 1)
{
ReleaseContainer(container);
return;
}
#if LETAI_TRUESHADOW_DEBUG
RenderTexture.ReleaseTemporary(debugTexture);
if (request.shadow.alwaysRender)
{
debugTexture = RenderShadow(request);
}
#endif
// Each request need a coresponding shadow texture
// Texture may be shared by multiple elements
// Texture are released when no longer used by any element
// ShadowContainer keep track of texture and their usage
int requestHash = request.GetHashCode();
// Case: requester can keep the same texture
if (container?.requestHash == requestHash)
{
return;
}
ReleaseContainer(container);
if (shadowCache.TryGetValue(requestHash, out var existingContainer))
{
// Case: requester got texture from someone else
existingContainer.RefCount++;
container = existingContainer;
}
else
{
// Case: requester got new unique texture
container = shadowCache[requestHash] = new ShadowContainer(RenderShadow(request), request);
// Debug.Log($"Created new container for request\t{requestHash}\tTotal Created: {++createdContainerCount}\t Alive: {createdContainerCount - releasedContainerCount}");
}
}
public ShadowContainer(RenderTexture texture, ShadowRenderingRequest request)
{
Texture = texture;
RefCount = 1;
requestHash = request.GetHashCode();
}