Advanced Demo "Earth" range check errors with software rendering.

[SkybuckFlying]

The advanced demo "earth" in the folder "..\GLScene\AdvDemos\Earth" produces range check errors with software rendering.

To turn software rendering on use the object inspector and navigate to the following property:

GLSceneViewer.Buffer.ContextOptions.roSoftwareMode checkbox True.

It would be great if these range check errors and integer overflow errors could be solved so that software rendering mode works too.

[SkybuckFlying]

In folder: ..\GLScene\AdvDemos\Earth

4.1 Fixing the Advanced Earth Demo for software rendering:

4.1.1. Change GLSceneViewer.Buffer.ContextOptions.roSoftwareMode to true.

4.1.2. Change GLSceneViewer.Buffer.AccumBufferBits from 0 to 8, 16, 24 or 32.

4.1.3. Deleting the flare component from the sun component:

GLScene(right click)->Show Scene Editor->LSSun->GLLensFlare1

Right click->delete object

4.1.4. Disable following two lines in GLScene library unit: GLS.Graphics.pas

    for slice := 0 to d - 1 do
    begin
    	// Skybuck: disabled, buggy in software mode
//      Build2DMipmap(GetLevelAddress(0), LAddresses, fColorFormat, fDataType,
//        AFilter, GetWidth, GetHeight);
      for level := 1 to fLevelCount - 1 do
        Inc(PByte(LAddresses[level - 1]), GetLevelSizeInByte(level) div d);
    end;

4.1.5. Disable the following line in fEarthd.pas:

procedure TForm1.GLSceneViewerBeforeRender(Sender: TObject);
begin
//  GLLensFlare1.PreRender(Sender as TGLSceneBuffer);