Ok I have a fix for the lighting scale.

Ok I have a fix for the lighting scale.

In SceneLighting::InteriorProxy::light() starting at line 1839 (originally wrong line number, sorry for the confusion) you will see the following lines:

// get the start point on the lightmap
         pStart[si] = ((surface.mapOffsetX / (1 / lGenX[si])) - lGenX[3]) / lGenX[si];
         pStart[ti] = ((surface.mapOffsetY / (1 / lGenY[ti])) - lGenY[3]) / lGenY[ti];
         pStart[axis] = ((pNormal[si] * pStart[si]) +
                         (pNormal[ti] * pStart[ti]) + plane.d) / -pNormal[axis];

and at line 1881 (originally wrong line number, sorry for the confusion):

// scale the vectors
         F32 lumelScale = lGenX[si] * normLightmap->getWidth();

The first problem is that lumelScale should be inversely proportional to the lighting scale. This is because the variable actually represents the number of world units per lumel not the lume scale as the name might suggest.

The second problem is that the lighting scale should affect the surface members 'mapOffsetX' and 'mapOffsetY'.

Remove both lines at line 2129 and change the lines at 2088 to:

F32 lumelScale = 1 / (lGenX[si] * normLightmap->getWidth());

		 // get the start point on the lightmap
		 pStart[si] = (((surface.mapOffsetX * lumelScale) / (1 / lGenX[si])) - lGenX[3]) / lGenX[si];
		 pStart[ti] = (((surface.mapOffsetY * lumelScale) / (1 / lGenY[ti])) - lGenY[3]) / lGenY[ti];
		 pStart[axis] = ((pNormal[si] * pStart[si]) + (pNormal[ti] * pStart[ti]) + plane.d) / -pNormal[axis];

That's it.

John Kabus.