RenderShaderData handling entirely reworked

- UBO created for each Shader/ShaderData
- We deal with nested QShaderData by looking for QNodeId only instead of looking
  for QShaderData*
- We update only the values that have changed into the UBO
- A CleanupFrameJob was added to properly clear all RenderShaderData set for
  updates after a frame
- RenderShaderData is cleared of all UBO rendering logic
- BlockToUBO contains all the updated properties for a given UBO in a
  RenderView, that solves the issue of properties being updated in the
  RenderShaderData while performing a draw call

Note: the QShaderData transformed properties were commented for now

deferred-examples and playground qml updates to follow

Change-Id: I8ecf155288c154f41b505cf465d31f5eb8a71b5d
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/render/io/uniformbuffer.cpp b/src/render/io/uniformbuffer.cpp
index f8e6eac55..d417557b5 100644
--- a/src/render/io/uniformbuffer.cpp
+++ b/src/render/io/uniformbuffer.cpp
@@ -52,6 +52,9 @@ namespace Qt3D {
 
 namespace Render {
 
+// A UBO is created for each RenderShaderData RenderShader Pair
+// That means a UBO is unique to a shader/shaderdata
+
 UniformBuffer::UniformBuffer()
     : m_bufferId(-1)
     , m_isCreated(false)