// https://www.shadertoy.com/view/XljBW3

#define vec2 float2
#define vec3 float3
#define vec4 float4
#define ivec2 int2
#define ivec3 int3
#define ivec4 int4
#define mat2 float2x2
#define mat3 float3x3
#define mat4 float4x4
#define fract frac
#define mix lerp
#define iTime Time.x
#define iResolution ViewSize

uniform float2 mouse<
	string name = "Virtual Mouse Coordinates";
	string field_type = "slider";
	float2 minimum = {0, 0};
	float2 maximum = {100., 100.};
	float2 scale = {.01, .01};
	float2 step = {.01, .01};
> = {0., 0.};

uniform float4x4 ViewProj<
	bool automatic = true;
>;

uniform bool direction<
	string name = "Invert Direction";
> = true;

uniform float4 Time<
	bool automatic = true;
>;

uniform float4 ViewSize<
	bool automatic = true;
>;

uniform float4x4 Random <
	bool visible = false;	
	string name = "Random Array";
	string description = "A float4x4 value containing random values between 0 and 1";
>;

uniform float4x4 Random <
	bool automatic = true;
>;

int2 iMouse() {
	return int2(mouse.x * ViewSize.x, mouse.y * ViewSize.y);
}

/*ps start*/


/*ps end*/

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

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

float4 PSDefault(VertFragData vtx) : TARGET {
	float4 col = float4(1., 1., 1., 1.);
	mainImage(col, vtx.uv * ViewSize.xy);
	return col;
}

technique Draw 
{
	pass
	{
		vertex_shader = VSDefault(vtx);
		pixel_shader  = PSDefault(vtx); 
	}
}