This may or may not help. :) I need to work out this kind of thing for another project so I wipped this up to show how you might be able to do this sort of thing with sprites.
Block.Jpg Pic:

Heres the code:
;Pixel perfect sprite ;Copyright (c) 2004 Richard R Betson ;www.redeyeware.50megs.com ;USE - Free to all ;09/15/04 Graphics3D 800,600,16,2 sprt=LoadSprite("block.jpg",4) EntityFX sprt,1 source_w=128 source_h=128 ;Pixel width and height (64 appears to = 1 Blitz3D unit) rect_w=64 rect_h=64 Dim sprite(50) Dim sprite_x(50) Dim sprite_y(50) ;Globals for ScaleToPixel Function Global w# Global h# ;Given the ScaleToPixel(rect_w,rect_h,source_w,source_h) For i=1 To 35 sprite(i)=CopyEntity(sprt) EntityColor sprite(i),Rnd(128)+128,Rnd(128)+128,Rnd(128)+128 sprite_x(i)=i*rect_w sprite_y(i)=i*rect_h ScaleSprite sprite(i),w#,h# Next i=0 FreeEntity sprt cam=CreateCamera() PositionEntity cam,0,0,-4 PointEntity cam,sprite(1) While Not KeyHit(1) For y= 0 To 4 For x=0 To 6 i=i+1 PositionEntity sprite(i),x-3,y-2,0 Next Next i=0 UpdateWorld RenderWorld Flip Wend ;Returns the proper scale to match a pixel width and height. source_w/source_h are the actual image size Function ScaleToPixel(rect_w,rect_h,source_w,source_h) w#=( Float(rect_w)/Float(source_w) ) h#=( Float(rect_h)/Float(source_h) ) End Function