public static bool Downsample(RenderTexture renderTexture, int steps, ref RenderTexture temporary)
{
if (steps > 0 && renderTexture != null)
{
// Perform initial downsample to get buffer
var oldActive = RenderTexture.active;
var desc = new RenderTextureDescriptor(renderTexture.width / 2, renderTexture.height / 2, renderTexture.format, 0);
var halfRenderTexture = GetRenderTexture(desc);
P3dCommandReplace.BlitFast(halfRenderTexture, renderTexture, Color.white, Vector4.one);
// Ping pong downsamples
for (var i = 1; i < steps; i++)
{
desc.width /= 2;
desc.height /= 2;
renderTexture = halfRenderTexture;
halfRenderTexture = GetRenderTexture(desc);
Graphics.Blit(renderTexture, halfRenderTexture);
ReleaseRenderTexture(renderTexture);
}
temporary = halfRenderTexture;
RenderTexture.active = oldActive;
return(true);
}
return(false);
}
private void ExecuteCommands(List <P3dCommand> commands, bool sendNotifications, ref RenderTexture main, ref RenderTexture swap, ref Mesh preparedMesh, ref Matrix4x4 preparedMatrix)
{
if (swap == null)
{
swap = P3dHelper.GetRenderTexture(main);
}
if (keepUnpaintable == true)
{
P3dCommandReplace.BlitFast(swap, current, Color.white);
}
RenderTexture.active = main;
for (var i = 0; i < commands.Count; i++)
{
var command = commands[i];
if (command.Model != null)
{
RenderTexture.active = swap;
command.Apply(main);
if (command.RequireMesh == true)
{
command.Model.GetPrepared(ref preparedMesh, ref preparedMatrix);
P3dHelper.Draw(command.Material, preparedMesh, preparedMatrix, command.Submesh, coord);
}
else
{
P3dHelper.Draw(command.Material);
}
P3dHelper.Swap(ref main, ref swap);
}
command.Pool();
}
commands.Clear();
if (main.useMipMap == true)
{
main.GenerateMips();
}
if (sendNotifications == true)
{
NotifyOnModified(commands == previewCommands);
}
}
private void Render(P3dCommand command, P3dScene.Mat mat, P3dScene.Image image, P3dScene.Obj obj, int subMesh)
{
var oldActive = RenderTexture.active;
if (image.Current == null)
{
if (image.Width > 0 && image.Height > 0 && image.Pixels != null && image.Pixels.Length > 0)
{
var texture = new Texture2D(1, 1);
if (texture.LoadImage(image.Pixels) == true)
{
var desc = mat.Desc;
desc.width = image.Width;
desc.height = image.Height;
image.Current = P3dHelper.GetRenderTexture(mat.Desc);
P3dCommandReplace.BlitFast(image.Current, texture, Color.white);
}
else
{
image.Current = P3dHelper.GetRenderTexture(mat.Desc);
P3dCommandReplace.BlitFast(image.Current, default(Texture), default(Color));
}
DestroyImmediate(texture);
}
else
{
image.Current = P3dHelper.GetRenderTexture(mat.Desc);
P3dCommandReplace.BlitFast(image.Current, default(Texture), default(Color));
}
}
var swap = P3dHelper.GetRenderTexture(image.Current.descriptor, image.Current);
if (command.Preview == true)
{
if (image.Preview == null)
{
image.Preview = P3dHelper.GetRenderTexture(image.Current.descriptor, image.Current);
P3dCommandReplace.BlitFast(image.Preview, image.Current, Color.white);
}
P3dCommandReplace.BlitFast(swap, image.Preview, Color.white);
command.Apply(image.Preview);
}
else
{
P3dCommandReplace.BlitFast(swap, image.Current, Color.white);
command.Apply(image.Current);
}
RenderTexture.active = swap;
if (command.RequireMesh == true)
{
P3dHelper.Draw(command.Material, obj.FinalMesh, obj.Matrix, subMesh, obj.Coord);
}
else
{
P3dHelper.Draw(command.Material);
}
RenderTexture.active = oldActive;
if (command.Preview == true)
{
P3dHelper.ReleaseRenderTexture(image.Preview);
image.Preview = swap;
previewDrawn = true;
}
else
{
P3dHelper.ReleaseRenderTexture(image.Current);
image.Current = swap;
}
paintedGroups.Add(command.Priority); // Group is stored in priority
}
