The "snes_faust" emulation module is experimental, and not used automatically by default except for SPC playback. To use this module rather than the "snes" module, you must either set the "snes.enable" setting to "0", or pass "-force_module snes_faust" to Mednafen each time it is invoked.
PAL games and special cart chips are not supported, and the only input device currently emulated is the standard SNES gamepad. Timing is approximate, so some games may exhibit timing-related issues.
A unique feature to this module(at the current time) is optional 1-frame speculative execution, disabled by default, controlled by the snes_faust.spex setting. Enabling it will reduce input(controller)->output(video) latency by 1 video frame(~16.7ms), with no deleterious effects on most games tested(though it will increase CPU usage a bit). Combine it with the setting changes recommended here for a better netplay experience.
Caution: Any settings that change emulation behavior as seen from the emulated game are shown with the setting name bolded in the table. One should be conscious of these settings if one has changed them from the default values when using network play or movies, as they can cause desychronizations if not set the same among hosts(or between the recording emulator and the playing emulator).
Setting: | Value Type: | Possible Values: | Default Value: | Description: |
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snes_faust.input.port1 | enum | none gamepad | gamepad | Input device for Port 1
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snes_faust.input.port2 | enum | none gamepad | gamepad | Input device for Port 2
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snes_faust.resamp_quality | integer | 0 through 5 | 3 | Sound quality. Higher values correspond to better SNR and better preservation of higher frequencies("brightness"), at the cost of increased computational complexity and a negligible increase in latency. |
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snes_faust.resamp_rate_error | real | 0.0000001 through 0.0015 | 0.000035 | Sound output rate tolerance. Lower values correspond to better matching of the output rate of the resampler to the actual desired output rate, at the expense of increased RAM usage and poorer CPU cache utilization. |
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snes_faust.spex | boolean | 0 1 | 0 | Enable 1-frame speculative execution for video output. Hack to reduce input->output video latency by 1 frame. Enabling will increase CPU usage, and may cause video glitches(such as "jerkiness") in some oddball games, but most commercially-released games should be fine. |
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snes_faust.spex.sound | boolean | 0 1 | 1 | Enable speculative execution for sound output too. Only has an effect when speculative-execution for video output is enabled. Will cause minor sound glitches in some games. |
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Setting: | Value Type: | Possible Values: | Default Value: | Description: |
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snes_faust.enable | boolean | 0 1 | 1 | Enable (automatic) usage of this module. |
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snes_faust.forcemono | boolean | 0 1 | 0 | Force monophonic sound output. |
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snes_faust.scanlines | integer | -100 through 100 | 0 | Enable scanlines with specified opacity. Opacity is specified in %; IE a value of "100" will give entirely black scanlines. |
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snes_faust.shader | enum | none autoip autoipsharper scale2x sabr ipsharper ipxnoty ipynotx ipxnotysharper ipynotxsharper goat | none | Enable specified OpenGL shader. Obviously, this will only work with the OpenGL "video.driver" setting, and only on cards and OpenGL implementations that support shaders, otherwise you will get a black screen, or Mednafen may display an error message when starting up. When a shader is enabled, the "
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snes_faust.shader.goat.fprog | boolean | 0 1 | 0 | Force interlaced video to be treated as progressive. When disabled, the default, the "video.deinterlacer" setting is effectively ignored with respect to what appears on the screen. When enabled, it may be prudent to disable the scanlines effect controlled by the *.goat.slen setting, or else the scanline effect may look objectionable. |
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snes_faust.shader.goat.hdiv | real | -2.00 through 2.00 | 0.50 | Constant RGB horizontal divergence. |
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snes_faust.shader.goat.pat | enum | goatron borg slenderman | goatron | Mask pattern.
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snes_faust.shader.goat.slen | boolean | 0 1 | 1 | Enable scanlines effect. |
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snes_faust.shader.goat.tp | real | 0.00 through 1.00 | 0.50 | Transparency of otherwise-opaque mask areas. |
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snes_faust.shader.goat.vdiv | real | -2.00 through 2.00 | 0.50 | Constant RGB vertical divergence. |
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snes_faust.special | enum | none hq2x hq3x hq4x scale2x scale3x scale4x 2xsai super2xsai supereagle nn2x nn3x nn4x nny2x nny3x nny4x | none | Enable specified special video scaler. The destination rectangle is NOT altered by this setting, so if you have xscale and yscale set to "2", and try to use a 3x scaling filter like hq3x, the image is not going to look that great. The nearest-neighbor scalers are intended for use with bilinear interpolation enabled, at high resolutions(such as 1280x1024; nn2x(or nny2x) + bilinear interpolation + fullscreen stretching at this resolution looks quite nice).
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snes_faust.stretch | enum | 0 full aspect aspect_int aspect_mult2 | aspect_mult2 | Stretch to fill screen.
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snes_faust.tblur | boolean | 0 1 | 0 | Enable video temporal blur(50/50 previous/current frame by default). |
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snes_faust.tblur.accum | boolean | 0 1 | 0 | Accumulate color data rather than discarding it. |
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snes_faust.tblur.accum.amount | real | 0 through 100 | 50 | Blur amount in accumulation mode, specified in percentage of accumulation buffer to mix with the current frame. |
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snes_faust.videoip | enum | 0 1 x y | 1 | Enable (bi)linear interpolation.
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snes_faust.xres | integer | 0 through 65536 | 0 | Full-screen horizontal resolution. A value of "0" will cause the desktop horizontal resolution to be used. |
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snes_faust.xscale | real | 0.01 through 256 | 3.000000 | Scaling factor for the X axis in windowed mode. |
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snes_faust.xscalefs | real | 0.01 through 256 | 1.000000 | Scaling factor for the X axis in fullscreen mode. For this settings to have any effect, the " |
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snes_faust.yres | integer | 0 through 65536 | 0 | Full-screen vertical resolution. A value of "0" will cause the desktop vertical resolution to be used. |
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snes_faust.yscale | real | 0.01 through 256 | 3.000000 | Scaling factor for the Y axis in windowed mode. |
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snes_faust.yscalefs | real | 0.01 through 256 | 1.000000 | Scaling factor for the Y axis in fullscreen mode. For this settings to have any effect, the " |
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