DirectX9.0c
Have downloaded DX90c for use 44.03 drivers in FlightSim.. and it appears to make a significant difference.. in what one poster coined as managing `AutoGen mips'.. which is essentially the resolution of each terrain cell [texture] and it transition into the adjacent cell. With mips turned OFF.. I'm seeing a reduction in `shimmering'.. and also.. a general increase in TERRAIN_EXTENDED_RADIUS is possible. What are the specifics of DX90c and how can the scenery be optimised to take best advantage of it..? -Gregory |
Gregory Abbey wrote:
Have downloaded DX90c for use 44.03 drivers in FlightSim.. and it appears to make a significant difference.. in what one poster coined as managing `AutoGen mips'.. which is essentially the resolution of each terrain cell [texture] and it transition into the adjacent cell. With mips turned OFF.. I'm seeing a reduction in `shimmering'.. and also.. a general increase in TERRAIN_EXTENDED_RADIUS is possible. What are the specifics of DX90c and how can the scenery be optimised to take best advantage of it..? -Gregory Without any mipmaps (pregenerated or otherwise), you're going to see aliasing as the angle of the apparent terrain/horizon decreases. This is the result of linear interpolation without any sub-textures (mipmaps). I'm not too familiar with the development aspects of FSim, but hopefully the game supports pregenerated mipmaps. These would normally be made as a subset of the original texture at a decrease power of 2 resolution (i.e. 256 - 128 - 64... onward). Without mipmaps, the texture aliasing can be misinterpreted as added detail or "sharpness", but it's not. Also, unless a game is specifically written for that version of DirectX, you'll only see any ancillary benefits (like code cleanup, better texture management, new shaders, etc). |
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