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Battle of Britain Tweaking the Graphics "Below is a slightly expanded explanation of what the different options within cardbase do and why they are present. General fixes: VERTEX_FOG Try this if there are fog problems (usually things are blue in the wrong places) or everything is blue. Some cards offer this ability as an option - for example the geforce cards can switch off fog table emulation at which point this will need to be added to the fix list. NO_TEXTURE_BLEND If the sea looks wrong or the cloud layer looks wrong then this may be the option for you (also effect the dither antialiasing). The sea animation will look poorer as will the cloud layer as only one texture will be applied to a polygon at a time. NO_DEVICE_VALIDATION This can fix the problems from the above in a more satisfactory manner. Also if the game can't even get into the 3D it is a good idea to try this one. What it really means is ignore the capabilities that DirectX reports and assume it can handle best guess approximations on its own. MAX_TEXTURE_WIDTH <integer> MAX_TEXTURE_HEIGHT <integer> If textures seem to be cut off or you can't get into the 3D then using these two fixes with values of 256 or 128 NO_GUARDBAND_CLIP Don't do guardband clipping if it is available. Some graphics cards allow for polygons to be drawn to a larger area than the screen buffer without clipping - they define a guardband region. This option should not really be needed unless a card enumerates wrongly. STIPPLE_ALPHA This can fix problems that may occur with the luminous transparency blending, use if the view reticle in the cockpit and the lens flares look wrong. W_16BIT Use if textures don't mesh or tear along polygon edges in the landscape and clouds. This means that during Rowan's Battle of Britain's polygon transform stage the whole size of the scene will be scaled down to prevent the sizes of polygons from being bigger than can be fitted into a 16bit value. It seems that some cards only do 16bit internally for texture calculations and require this."
Read on - Landscape Texture Issues
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