GLSL Shaders - CRT Emulating old televisions

[neobrain]

Yeah.. no. Read the wiki page on the dolphin wiki on gcode again, it describes that you need to do it differently.

[ProfEmu]

Are you referring to the Microsoft.cpp.x64.User?

I don't have any of those folders in my project, how are they added?

[neobrain]

You probably haven't "Open[ed] the Property Manager" (somewhere in the view menu maybe?).

[dEnigma]

In Visual C++ 2010 Express it's "Project->Properties" or [ALT]+[F7]

[ProfEmu]

Found it in hiding in 'Other Windows':

View -> Other Windows -> Property Manager

Everything now builds absolutely fine with no errors (just warnings)

Thanks for taking the time to help out with this.

I'll look into the converting the shader when I get some spare time next weekend.

[ProfEmu]

Can anyone get this to openGL shader to work with Dolphin?

Code:

// lerp = mix
// #define works correctly

#define PI 3.14159265f        

uniform samplerRECT samp0 : register(s0);

uniform float ScanlineAmount = 2.0f;
uniform float ScanlineScale = 0.2f;
uniform float ScanlineBrightScale = 1.0f;
uniform float ScanlineBrightOffset = 1.0f;
uniform float ScanlineOffset = 0.0f;
uniform float ScanlineHeight = 1.0f;

void main(out float4 ocol0 : COLOR0, in float2 uv0 : TEXCOORD0)
{
    float4 BaseTexel = texRECT(samp0, uv0).rgba;

    float RawHeight = 1080.0f;

    float2 ScanCoord = uv0;

    // -- Scanline Simulation --
    float InnerSine = ScanCoord.y * RawHeight * ScanlineScale;
    float ScanBrightMod = sin(InnerSine * PI + ScanlineOffset * RawHeight);
    float3 ScanBrightness = mix(1.0f, (pow(ScanBrightMod * ScanBrightMod, ScanlineHeight) * ScanlineBrightScale + 1.0f) * 0.5f, ScanlineAmount);
    float3 Scanned = BaseTexel.rgb * ScanBrightness;

    // -- Color Compression (increasing the floor of the signal without affecting the ceiling) --
    float3 Floor = float3(0.0f, 0.0f, 0.0f);    
    Scanned = Floor + (1.0f - Floor) * Scanned;

    ocol0 = float4(Scanned, BaseTexel.a);
    //ocol0 = BaseTexel;
}

I can get it to work outside of Dolphin (with HLSL and XNA) but no luck so far with GLSL. It is a simple as I could make for scanlines.

---

I know what the problem is....

Dolphin doesn't like all those uniform parameters. This will work:

Code:

// lerp = mix
// #define works correctly

#define PI 3.14159265f        

uniform samplerRECT samp0 : register(s0);

void main(out float4 ocol0 : COLOR0, in float2 uv0 : TEXCOORD0)
{
    float4 BaseTexel = texRECT(samp0, uv0).rgba;

    float RawHeight = 480.0f;

    float2 ScanCoord = uv0;

float ScanlineAmount = 2.0f;
float ScanlineScale = 0.2f;
float ScanlineBrightScale = 1.0f;
float ScanlineBrightOffset = 1.0f;
float ScanlineOffset = 0.0f;
float ScanlineHeight = 1.0f;

    // -- Scanline Simulation --
    float InnerSine = ScanCoord.y * RawHeight * ScanlineScale;
    float ScanBrightMod = sin(InnerSine * PI + ScanlineOffset * RawHeight);
    float3 ScanBrightness = mix(1.0f, (pow(ScanBrightMod * ScanBrightMod, ScanlineHeight) * ScanlineBrightScale + 1.0f) * 0.5f, ScanlineAmount);
    float3 Scanned = BaseTexel.rgb * ScanBrightness;

    // -- Color Compression (increasing the floor of the signal without affecting the ceiling) --
    float3 Floor = float3(0.0f, 0.0f, 0.0f);    
    Scanned = Floor + (1.0f - Floor) * Scanned;

    ocol0 = float4(Scanned, BaseTexel.a);
    //ocol0 = BaseTexel;
}

[dEnigma]

I just get a black screen when I use this shader.

[ProfEmu]

Try changing the following settings:

float ScanlineScale = 0.2f;
float ScanlineBrightScale = 1.0f;
float ScanlineBrightOffset = 1.0f;
float ScanlineHeight = 1.0f;

A sensible range for each one is [0, 1]

I can post screens of different settings at the weekend if that helps?