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CShade

About

CShade is an HLSL shader collection for ReShade. CShade introduces conventional image and video processing effects from a different angle.

CShade also includes .fxh files that contain algorithms used in the collection or have potential use.

Effects

Inter-Shader Merging

CShade allows users to blend shaders together and configure shaders to output a combination of Red/Green/Blue/Alpha.

Adaptive Exposure

CShade features an adaptive-exposure shader that uses hardware blending for temporal smoothing. The shader also features spot-metering, allowing users to expose their image depending on an area.

Image Processing

CShade features shaders that deal with getting information about an image.

Video Processing

CShade features real-time motion estimation and feature-matching shaders through hierarchal Lucas-Kanade optical flow.

  • Auto exposure
  • Datamoshing
  • Motion blur
  • Motion stabilization
  • Vector lines

Post Processing

CShade features shaders that filter images for aesthetics.

  • Backbuffer blending
  • Dual-Kawase bloom
  • Lens effect
  • Letterbox
  • Sharpening
  • Vignetting

Coding Convention

UI

In ui_category/ui_label, use · to separate between subcategories, if needed

uniform float _Level1Weight <
    ui_category = "Bloom · Level Weights";
    ui_label = "Level 1";
    ui_type = "slider";
    ui_min = 0.0;
    ui_max = 1.0;
> = 1.0;

uniform float _CShadeExposureSmoothingSpeed <
    ui_category = "Pipeline · Output · Auto Exposure";
    ui_label = "Smoothing Speed";
    ui_type = "slider";
    ui_min = 0.1;
    ui_max = 1.0;
> = 0.25;

Functions and Variables

Shared Method From Header File

shared/common/cLib.fxh -> Common_CLib_FunctionName()

ALLCAPS

  • State parameters

    BlendOp = ADD

  • System semantics

    float4 SV_POSITION

ALL_CAPS

  • Preprocessor definition

    #define SHADER_VERSION

  • Preprocessor Macros

    #define EXAMPLE_MACRO()

  • Preprocessor Macro Arguments

    #define EXAMPLE_MACRO(EXAMPLE_ARG)

_SnakeCase

  • Uniform variables

    uniform float3 _Example

SnakeCase

  • Function arguments

    void Function(float4 ArgumentOne)

  • Global Variables

    static const float4 GlobalVariable = 1.0;
void Function()
{
    return GlobalVariable;
}

  • Local Variables

    void Function()
{
    float4 LocalVariable = 1.0;
    return LocalVariable;
}

  • Textures and Samples

    texture2D ExampleTex ...

    sampler2D SampleExampleTex ...

SNAKE_Case

  • struct datatype

    struct APP2VS_Example ...

    struct VS2PS_Example ...

    struct PS2FB_Example ...

    struct PS2MRT_Example ...

  • VertexShader and PixelShader

    VertexShader = VS_Example;

    PixelShader = PS_Example;

Virtual-Key Codes

See also: https://learn.microsoft.com/en-us/windows/win32/inputdev/virtual-key-codes

Constant Value Description
VK_LBUTTON 0x01 Left mouse button
VK_RBUTTON 0x02 Right mouse button
VK_CANCEL 0x03 Control-break processing
VK_MBUTTON 0x04 Middle mouse button
VK_XBUTTON1 0x05 X1 mouse button
VK_XBUTTON2 0x06 X2 mouse button
0x07 Reserved
VK_BACK 0x08 Backspace key
VK_TAB 0x09 Tab key
0x0A-0B Reserved
VK_CLEAR 0x0C Clear key
VK_RETURN 0x0D Enter key
0x0E-0F Unassigned
VK_SHIFT 0x10 Shift key
VK_CONTROL 0x11 Ctrl key
VK_MENU 0x12 Alt key
VK_PAUSE 0x13 Pause key
VK_CAPITAL 0x14 Caps lock key
VK_KANA 0x15 IME Kana mode
VK_HANGUL 0x15 IME Hangul mode
VK_IME_ON 0x16 IME On
VK_JUNJA 0x17 IME Junja mode
VK_FINAL 0x18 IME final mode
VK_HANJA 0x19 IME Hanja mode
VK_KANJI 0x19 IME Kanji mode
VK_IME_OFF 0x1A IME Off
VK_ESCAPE 0x1B Esc key
VK_CONVERT 0x1C IME convert
VK_NONCONVERT 0x1D IME nonconvert
VK_ACCEPT 0x1E IME accept
VK_MODECHANGE 0x1F IME mode change request
VK_SPACE 0x20 Spacebar key
VK_PRIOR 0x21 Page up key
VK_NEXT 0x22 Page down key
VK_END 0x23 End key
VK_HOME 0x24 Home key
VK_LEFT 0x25 Left arrow key
VK_UP 0x26 Up arrow key
VK_RIGHT 0x27 Right arrow key
VK_DOWN 0x28 Down arrow key
VK_SELECT 0x29 Select key
VK_PRINT 0x2A Print key
VK_EXECUTE 0x2B Execute key
VK_SNAPSHOT 0x2C Print screen key
VK_INSERT 0x2D Insert key
VK_DELETE 0x2E Delete key
VK_HELP 0x2F Help key
0 0x30 0 key
1 0x31 1 key
2 0x32 2 key
3 0x33 3 key
4 0x34 4 key
5 0x35 5 key
6 0x36 6 key
7 0x37 7 key
8 0x38 8 key
9 0x39 9 key
0x3A-40 Undefined
A 0x41 A key
B 0x42 B key
C 0x43 C key
D 0x44 D key
E 0x45 E key
F 0x46 F key
G 0x47 G key
H 0x48 H key
I 0x49 I key
J 0x4A J key
K 0x4B K key
L 0x4C L key
M 0x4D M key
N 0x4E N key
O 0x4F O key
P 0x50 P key
Q 0x51 Q key
R 0x52 R key
S 0x53 S key
T 0x54 T key
U 0x55 U key
V 0x56 V key
W 0x57 W key
X 0x58 X key
Y 0x59 Y key
Z 0x5A Z key
VK_LWIN 0x5B Left Windows logo key
VK_RWIN 0x5C Right Windows logo key
VK_APPS 0x5D Application key
0x5E Reserved
VK_SLEEP 0x5F Computer Sleep key
VK_NUMPAD0 0x60 Numeric keypad 0 key
VK_NUMPAD1 0x61 Numeric keypad 1 key
VK_NUMPAD2 0x62 Numeric keypad 2 key
VK_NUMPAD3 0x63 Numeric keypad 3 key
VK_NUMPAD4 0x64 Numeric keypad 4 key
VK_NUMPAD5 0x65 Numeric keypad 5 key
VK_NUMPAD6 0x66 Numeric keypad 6 key
VK_NUMPAD7 0x67 Numeric keypad 7 key
VK_NUMPAD8 0x68 Numeric keypad 8 key
VK_NUMPAD9 0x69 Numeric keypad 9 key
VK_MULTIPLY 0x6A Multiply key
VK_ADD 0x6B Add key
VK_SEPARATOR 0x6C Separator key
VK_SUBTRACT 0x6D Subtract key
VK_DECIMAL 0x6E Decimal key
VK_DIVIDE 0x6F Divide key
VK_F1 0x70 F1 key
VK_F2 0x71 F2 key
VK_F3 0x72 F3 key
VK_F4 0x73 F4 key
VK_F5 0x74 F5 key
VK_F6 0x75 F6 key
VK_F7 0x76 F7 key
VK_F8 0x77 F8 key
VK_F9 0x78 F9 key
VK_F10 0x79 F10 key
VK_F11 0x7A F11 key
VK_F12 0x7B F12 key
VK_F13 0x7C F13 key
VK_F14 0x7D F14 key
VK_F15 0x7E F15 key
VK_F16 0x7F F16 key
VK_F17 0x80 F17 key
VK_F18 0x81 F18 key
VK_F19 0x82 F19 key
VK_F20 0x83 F20 key
VK_F21 0x84 F21 key
VK_F22 0x85 F22 key
VK_F23 0x86 F23 key
VK_F24 0x87 F24 key
0x88-8F Reserved
VK_NUMLOCK 0x90 Num lock key
VK_SCROLL 0x91 Scroll lock key
0x92-96 OEM specific
0x97-9F Unassigned
VK_LSHIFT 0xA0 Left Shift key
VK_RSHIFT 0xA1 Right Shift key
VK_LCONTROL 0xA2 Left Ctrl key
VK_RCONTROL 0xA3 Right Ctrl key
VK_LMENU 0xA4 Left Alt key
VK_RMENU 0xA5 Right Alt key
VK_BROWSER_BACK 0xA6 Browser Back key
VK_BROWSER_FORWARD 0xA7 Browser Forward key
VK_BROWSER_REFRESH 0xA8 Browser Refresh key
VK_BROWSER_STOP 0xA9 Browser Stop key
VK_BROWSER_SEARCH 0xAA Browser Search key
VK_BROWSER_FAVORITES 0xAB Browser Favorites key
VK_BROWSER_HOME 0xAC Browser Start and Home key
VK_VOLUME_MUTE 0xAD Volume Mute key
VK_VOLUME_DOWN 0xAE Volume Down key
VK_VOLUME_UP 0xAF Volume Up key
VK_MEDIA_NEXT_TRACK 0xB0 Next Track key
VK_MEDIA_PREV_TRACK 0xB1 Previous Track key
VK_MEDIA_STOP 0xB2 Stop Media key
VK_MEDIA_PLAY_PAUSE 0xB3 Play/Pause Media key
VK_LAUNCH_MAIL 0xB4 Start Mail key
VK_LAUNCH_MEDIA_SELECT 0xB5 Select Media key
VK_LAUNCH_APP1 0xB6 Start Application 1 key
VK_LAUNCH_APP2 0xB7 Start Application 2 key
0xB8-B9 Reserved
VK_OEM_1 0xBA It can vary by keyboard. For the US ANSI keyboard , the Semiсolon and Colon key
VK_OEM_PLUS 0xBB For any country/region, the Equals and Plus key
VK_OEM_COMMA 0xBC For any country/region, the Comma and Less Than key
VK_OEM_MINUS 0xBD For any country/region, the Dash and Underscore key
VK_OEM_PERIOD 0xBE For any country/region, the Period and Greater Than key
VK_OEM_2 0xBF It can vary by keyboard. For the US ANSI keyboard, the Forward Slash and Question Mark key
VK_OEM_3 0xC0 It can vary by keyboard. For the US ANSI keyboard, the Grave Accent and Tilde key
0xC1-DA Reserved
VK_OEM_4 0xDB It can vary by keyboard. For the US ANSI keyboard, the Left Brace key
VK_OEM_5 0xDC It can vary by keyboard. For the US ANSI keyboard, the Backslash and Pipe key
VK_OEM_6 0xDD It can vary by keyboard. For the US ANSI keyboard, the Right Brace key
VK_OEM_7 0xDE It can vary by keyboard. For the US ANSI keyboard, the Apostrophe and Double Quotation Mark key
VK_OEM_8 0xDF It can vary by keyboard. For the Canadian CSA keyboard, the Right Ctrl key
0xE0 Reserved
0xE1 OEM specific
VK_OEM_102 0xE2 It can vary by keyboard. For the European ISO keyboard, the Backslash and Pipe key
0xE3-E4 OEM specific
VK_PROCESSKEY 0xE5 IME PROCESS key
0xE6 OEM specific
VK_PACKET 0xE7 Used to pass Unicode characters as if they were keystrokes. The VK_PACKET key is the low word of a 32-bit Virtual Key value used for non-keyboard input methods. For more information, see Remark in KEYBDINPUT, SendInput, WM_KEYDOWN, and WM_KEYUP
0xE8 Unassigned
0xE9-F5 OEM specific
VK_ATTN 0xF6 Attn key
VK_CRSEL 0xF7 CrSel key
VK_EXSEL 0xF8 ExSel key
VK_EREOF 0xF9 Erase EOF key
VK_PLAY 0xFA Play key
VK_ZOOM 0xFB Zoom key
VK_NONAME 0xFC Reserved
VK_PA1 0xFD PA1 key
VK_OEM_CLEAR 0xFE Clear key

Acknowledgments

Groups

Individuals

The Shadersphere.

  • BeTa/Alea
  • BlueSkyDefender
  • Pfoiffee
  • Certain individuals in #code-chat/#shader-programming

GitHub Contributors

  • Overall

    • 0CCULTIST

  • Reported Bugs

    • Jakey757
    • simonedibilio
    • WardedPredator

  • Submitted Ideas

    • mrjoshisattvablack
    • liuxd17thu
    • Maximus961

  • Asked Questions

    • R0nBurgandy
    • lapsio

About

Image and video processing shaders for ReShade.

papadanku.github.io/CShade/

Topics

shaders image-processing video-processing hlsl optical-flow reshade

Resources

Readme

License

BSD-3-Clause license
Activity

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