obs-StreamFX/data/effects/shared.effect

//------------------------------------------------------------------------------
// HLSL/GLSL Support
//------------------------------------------------------------------------------
// OBS Studio does not correctly translate all HLSL functionality to GLSL.

// log10(x) is HLSL-exclusive and not translated by OBS Shader Parser.
#define m_log10(x) (log(x) / log(10))

//------------------------------------------------------------------------------
// Uniforms
//------------------------------------------------------------------------------

// View Projection Matrix
uniform float4x4 ViewProj;

//------------------------------------------------------------------------------
// Samplers
//------------------------------------------------------------------------------
sampler_state BlankSampler {
};

sampler_state PointRepeatSampler {
	Filter = Point;
	AddressU = Repeat;
	AddressV = Repeat;
};

sampler_state PointClampSampler {
	Filter = Point;
	AddressU = Clamp;
	AddressV = Clamp;
};

sampler_state LinearRepeatSampler {
	Filter = Linear;
	AddressU = Repeat;
	AddressV = Repeat;
};

sampler_state LinearClampSampler {
	Filter = Linear;
	AddressU = Clamp;
	AddressV = Clamp;
};

//------------------------------------------------------------------------------
// Structures
//------------------------------------------------------------------------------
struct VertexData {
	float4 pos : POSITION;
	float2 uv  : TEXCOORD0;
};

struct VertexColorData {
	float4 pos : POSITION;
	float4 clr : COLOR;
	float2 uv  : TEXCOORD0;
};

//------------------------------------------------------------------------------
// Vertex Shaders
//------------------------------------------------------------------------------
VertexData DefaultVertexShader(VertexData vtx) {
	vtx.pos = mul(float4(vtx.pos.xyz, 1.0), ViewProj);
	return vtx;
};

VertexColorData ColorVertexShader(VertexColorData vtx) {
	vtx.pos = mul(float4(vtx.pos.xyz, 1.0), ViewProj);
	return vtx;
};

//------------------------------------------------------------------------------
// Color Conversion
//------------------------------------------------------------------------------
#include "color_conversion_rgb_yuv.effect"
#include "color_conversion_rgb_hsv.effect"
#include "color_conversion_rgb_hsl.effect"