private void StartLayer(GenericLayer layer)
{
currentGenericLayer = layer;
currentPainterLayer = layer.painterLayer;
// TODO: check if currentLayerTempRenderTextures is empty
}
public void ResetChannelsToDefaults(IEnumerable <GenericChannel> channels)
{
DiscardAllChannels();
// hack to work around issue with WriteChannel();
currentPainterLayer = null;
currentGenericLayer = null;
foreach (GenericChannel channel in channels)
{
// initialize a render target for each channel
RenderTextureDescriptor descriptor = new RenderTextureDescriptor(channel.format.width, channel.format.height, channel.format.format);
RenderTexture channelTarget = CreateRenderTexture(descriptor);
RenderTexture oldRT = UnityEngine.RenderTexture.active;
if (channel.defaultTexture != null)
{
// initialize to default texture
Graphics.Blit(channel.defaultTexture, channelTarget);
}
else
{
// initialize to default color
UnityEngine.RenderTexture.active = channelTarget;
GL.Clear(true, true, channel.defaultColor);
}
UnityEngine.RenderTexture.active = oldRT;
// setup painter channel
WriteChannel(channel.name, channelTarget);
}
}
private void EndLayer()
{
// any remaining temp render textures are discarded (for re-use)
foreach (RenderTexture rt in currentLayerTempRenderTextures)
{
discardedRenderTextures.Add(rt.descriptor, rt);
}
currentLayerTempRenderTextures.Clear();
currentGenericLayer = null;
currentPainterLayer = null;
}
