public bool AddTexture(CommandBuffer cmd, ref Vector4 scaleBias, Texture texture)
{
IntPtr key = texture.GetNativeTexturePtr();
if (!m_AllocationCache.TryGetValue(key, out scaleBias))
{
int width = texture.width;
int height = texture.height;
if (m_AtlasAllocator.Allocate(ref scaleBias, width, height))
{
scaleBias.Scale(new Vector4(1.0f / m_Width, 1.0f / m_Height, 1.0f / m_Width, 1.0f / m_Height));
for (int mipLevel = 0; mipLevel < (texture as Texture2D).mipmapCount; mipLevel++)
{
cmd.SetRenderTarget(m_AtlasTexture, mipLevel);
HDUtils.BlitQuad(cmd, texture, new Vector4(1, 1, 0, 0), scaleBias, mipLevel, false);
}
m_AllocationCache.Add(key, scaleBias);
return(true);
}
else
{
return(false);
}
}
return(true);
}
//? BUG: HDUtils.BlitCameraTexture can not blit to ctx.cameraColorBuffer
// Use this function instead
private void BlitToCameraColorTexture(CustomPassContext ctx, RTHandle src)
{
SetRenderTargetAuto(ctx.cmd);
HDUtils.BlitQuad(ctx.cmd, src,
new Vector2(src.rtHandleProperties.rtHandleScale.x,
src.rtHandleProperties.rtHandleScale.y),
Vector2.one,
0, false);
}
void CustomRender(ScriptableRenderContext context, HDCamera camera)
{
var cmd = CommandBufferPool.Get(_label);
cmd.SetViewport(new Rect(0, 0, Screen.width, Screen.height));
CoreUtils.ClearRenderTarget(cmd, ClearFlag.All, Color.clear);
HDUtils.BlitQuad(
cmd, _source,
new Vector4(1, 1, 0, 0),
new Vector4(1, -1, 0, 1),
0, true
);
context.ExecuteCommandBuffer(cmd);
CommandBufferPool.Release(cmd);
}