#version 420
#extension GL_ARB_texture_gather : enable
#extension GL_ARB_separate_shader_objects : enable
#ifdef VULKAN
#define ATTR_LAYOUT(__vkSet, __location) layout(set = __vkSet, location = __location)
#define UNIFORM_BUFFER_LAYOUT(__glLocation, __vkSet, __vkLocation) layout(set = __vkSet, binding = __vkLocation, std140)
#define TEXTURE_LAYOUT(__glLocation, __vkSet, __vkLocation) layout(set = __vkSet, binding = __vkLocation)
#define SET_POSITION(_v) gl_Position = _v; gl_Position.z = (gl_Position.z + gl_Position.w) / 2.0
#define GET_FRAGCOORD() vec4(gl_FragCoord.xy*uf_fragCoordScale.xy,gl_FragCoord.zw)
#define gl_VertexID gl_VertexIndex
#define gl_InstanceID gl_InstanceIndex
#else
#define ATTR_LAYOUT(__vkSet, __location) layout(location = __location)
#define UNIFORM_BUFFER_LAYOUT(__glLocation, __vkSet, __vkLocation) layout(binding = __glLocation, std140) 
#define TEXTURE_LAYOUT(__glLocation, __vkSet, __vkLocation) layout(binding = __glLocation)
#define SET_POSITION(_v) gl_Position = _v
#define GET_FRAGCOORD() vec4(gl_FragCoord.xy*uf_fragCoordScale,gl_FragCoord.zw)
#endif
// This shader was automatically converted to be cross-compatible with Vulkan and OpenGL.


// shader cb0e6e8cbec4502a 
// Used for: 1 pass Battle, Camera and Scope Depth of Field Blur

TEXTURE_LAYOUT(0, 1, 0) uniform sampler2D textureUnitPS0;
layout(location = 0) in vec4 passParameterSem3;
layout(location = 0) out vec4 passPixelColor0;
#ifdef VULKAN
layout(set = 1, binding = 1) uniform ufBlock
{
uniform vec4 uf_fragCoordScale;
};
#else
uniform vec2 uf_fragCoordScale;
#endif

#define disableDOF $disableDOF

#if (disableDOF == 0) // Keep DOF Enabled

int radius = int( roundEven(2.0/uf_fragCoordScale.y) );
vec2 resolution = vec2( textureSize(textureUnitPS0,0) );

void main() {
	vec2 center = ( passParameterSem3.xy + passParameterSem3.zw ) / 2.0 ;
	vec3 result = vec3(0.0);
	float count = 0.0;
	for ( int x = 1-radius; x <= radius-1; x+=2 ) {
		for ( int y = 1-radius; y <= radius-1; y+=2 ) {
			if ( length(vec2(x, y)) <= radius ) {
				result += texture( textureUnitPS0, center + vec2(x, y)/resolution ).xyz ;
				count += 1.0;
			}
		}
	}
	passPixelColor0 = vec4( result / count, 0.0 );
}

#elif (disableDOF == 1) // Disable DOF

void main() {
    passPixelColor0 = texture(textureUnitPS0, passParameterSem3.xy);
}

#endif
