Giant commit!

A full detailed description of this will be done later... is several days
of work. Here's a summary:

Render:
- Full cleanup of render code, removing *all* globals and bad level calls
  all over blender. Render module is now not called abusive anymore
- API-fied calls to rendering
- Full recode of internal render pipeline. Is now rendering tiles by
  default, prepared for much smarter 'bucket' render later.
- Each thread now can render a full part
- Renders were tested with 4 threads, goes fine, apart from some lookup
  tables in softshadow and AO still
- Rendering is prepared to do multiple layers and passes
- No single 32 bits trick in render code anymore, all 100% floats now.

Writing images/movies
- moved writing images to blender kernel (bye bye 'schrijfplaatje'!)
- made a new Movie handle system, also in kernel. This will enable much
  easier use of movies in Blender

PreviewRender:
- Using new render API, previewrender (in buttons) now uses regular render
  code to generate images.
- new datafile 'preview.blend.c' has the preview scenes in it
- previews get rendered in exact displayed size (1 pixel = 1 pixel)

3D Preview render
- new; press Pkey in 3d window, for a panel that continuously renders
  (pkey is for games, i know... but we dont do that in orange now!)
- this render works nearly identical to buttons-preview render, so it stops
  rendering on any event (mouse, keyboard, etc)
- on moving/scaling the panel, the render code doesn't recreate all geometry
- same for shifting/panning view
- all other operations (now) regenerate the full render database still.
- this is WIP... but big fun, especially for simple scenes!

Compositor
- Using same node system as now in use for shaders, you can composit images
- works pretty straightforward... needs much more options/tools and integration
  with rendering still
- is not threaded yet, nor is so smart to only recalculate changes... will be
  done soon!
- the "Render Result" node will get all layers/passes as output sockets
- The "Output" node renders to a builtin image, which you can view in the Image
  window. (yes, output nodes to render-result, and to files, is on the list!)

The Bad News
- "Unified Render" is removed. It might come back in some stage, but this
  system should be built from scratch. I can't really understand this code...
  I expect it is not much needed, especially with advanced layer/passes
  control
- Panorama render, Field render, Motion blur, is not coded yet... (I had to
  recode every single feature in render, so...!)
- Lens Flare is also not back... needs total revision, might become composit
  effect though (using zbuffer for visibility)
- Part render is gone! (well, thats obvious, its default now).
- The render window is only restored with limited functionality... I am going
  to check first the option to render to a Image window, so Blender can become
  a true single-window application. :)
  For example, the 'Spare render buffer' (jkey) doesnt work.
- Render with border, now default creates a smaller image
- No zbuffers are written yet... on the todo!
- Scons files and MSVC will need work to get compiling again

OK... thats what I can quickly recall. Now go compiling!

1 files changed, 7 insertions, 4 deletions

diff --git a/source/blender/yafray/intern/export_File.cpp b/source/blender/yafray/intern/export_File.cpp
index 79e83704ee9..d9124c902c2 100755
--- a/source/blender/yafray/intern/export_File.cpp
+++ b/source/blender/yafray/intern/export_File.cpp
@@ -291,7 +291,7 @@ void yafrayFileRender_t::displayImage()
 
 	// read data directly into buffer, picture is upside down
 	for (unsigned short y=0;y<height;y++) {
-		unsigned char* bpt = (unsigned char*)R.rectot + ((((height-1)-y)*width)<<2);
+		unsigned char* bpt = NULL; //(unsigned char*)R.rectot + ((((height-1)-y)*width)<<2);
 		for (unsigned short x=0;x<width;x++) {
 			bpt[2] = (unsigned char)fgetc(fp);
 			bpt[1] = (unsigned char)fgetc(fp);
@@ -1527,6 +1527,9 @@ void yafrayFileRender_t::writeAreaLamp(LampRen* lamp, int num, float iview[4][4]
 
 void yafrayFileRender_t::writeLamps()
 {
+	GroupObject *go;
+	int i=0;
+	
 	// inverse viewmatrix needed for back2world transform
 	float iview[4][4];
 	// R.viewinv != inv.R.viewmat because of possible ortho mode (see convertBlenderScene.c)
@@ -1534,10 +1537,10 @@ void yafrayFileRender_t::writeLamps()
 	MTC_Mat4Invert(iview, R.viewmat);
 	
 	// all lamps
-	for (int i=0;i<R.totlamp;i++)
-	{
+	for(go=(GroupObject *)R.lights.first; go; go= go->next, i++) {
+		LampRen* lamp = (LampRen *)go->lampren;
+
 		ostr.str("");
-		LampRen* lamp = R.la[i];
 		
 		if (lamp->type==LA_AREA) { writeAreaLamp(lamp, i, iview);  continue; }