obs-studio/build/data/obs-plugins/test-input/test.effect

uniform float4x4 ViewProj;
uniform texture2d diffuse;

uniform float4 color = {0.0, 1.0, 0.0, 1.0};

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

struct VertexInOut {
	float4 pos : POSITION;
	float2 uv  : TEXCOORD0;
};

VertexInOut VShader(VertexInOut vert_in)
{
	VertexInOut vert_out;
	vert_out.pos = mul(float4(vert_in.pos.xyz, 1.0), ViewProj);
	vert_out.uv = vert_in.uv;
	return vert_out;
}

float4 PShader(VertexInOut fragment_in) : TARGET
{
	return diffuse.Sample(texSampler, fragment_in.uv) * color;
}

technique DrawRGB
{
	pass
	{
		vertex_shader = VShader(vert_in);
		pixel_shader  = PShader(fragment_in);
	}
}