direct3d9 how to filter texture for pixel art

Question

hello i want to make pixel art image looks less blurry i tried set sampler state but i see no difference

device->SetSamplerState(0, D3DSAMP_MIPFILTER, D3DTEXF_NONE);

i tried almost everything in setsamplerstate but i see no difference at all

i know i can make the photo bigger using photoshop but can i just make it looks hard edge with direct3d9

Does it help if you change `D3DTEXF_NONE` to `D3DTEXF_POINT`? — Blaze, Oct 01 '19 at 06:42
This seems to be a good summary of the texture filtering options https://learn.microsoft.com/en-us/windows/win32/direct3d9/texture-filtering — Alan Birtles, Oct 01 '19 at 07:10
quick question, is your texture loading and has MIP levels implemented? This may explain the bluriness, even when using point sampling. — ErnieDingo, Oct 07 '19 at 00:07

score 1 · Answer 1 · answered Oct 02 '19 at 02:30

1

"Pixel art" is typically drawn without any blending or bi-linear filtering. For legacy Direct3D 9, you'd use (assuming your textures are bound to slot 0):

device->SetSamplerState(0, D3DSAMP_MINFILTER, D3DTEXF_POINT);
device->SetSamplerState(0, D3DSAMP_MAGFILTER, D3DTEXF_POINT);
device->SetSamplerState(0, D3DSAMP_MIPFILTER, D3DTEXF_NONE);

At this point, you shouldn't use legacy Direct3D 9 at all. Direct3D 11 is your best bet. If you are using C++, take a look at the SpriteBatch class with the CommonStates::PointClamp() sampler state in the DirectX Tool Kit.

answered Oct 02 '19 at 02:30

Chuck Walbourn

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still don't work for me and i don't use Direct3D 11 because i can't find much good tutorials about it – alabdaly891 Oct 02 '19 at 02:59
The internet is full of good tutorials on Direct3D 11. See [this blog post](https://walbourn.github.io/getting-started-with-direct3d-11/). – Chuck Walbourn Oct 02 '19 at 04:22
Tutorials wise, look up Rastertek as its a great resource for C++ DX 11 examples. – ErnieDingo Oct 07 '19 at 00:04

direct3d9 how to filter texture for pixel art

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