{
	parms {
	}
	state {
		depthfunc GL_ALWAYS
		depthmask
		twosided
	}
	hlsl_vp {
		result.position = vertex.position;
	}
	hlsl_fp {
		// writes result.hcolor as the result of a smeared bloom
		// glareStep will be { 1, 0 } or { 0, 1 } for horizontal / vertical separation

		// gaussian 3 std dev
		half bloom0 = 0.134598;
		half bloom1 = 0.127325;
		half bloom2 = 0.107778;
		half bloom3 = 0.081638;
		half bloom4 = 0.055335;
		half bloom5 = 0.033562;
		half bloom6 = 0.018216;
		half bloom7 = 0.008847;

		// convert from 0,1,2,3,... coordinates to 0.0 - 1.0
		float2 tc = screenPosToTexcoord( fragment.position.xy, $positionToViewTexture );
		float2 step = $glareStep.xy * $positionToViewTexture.zw;
		float2 dir = step;

		half4 total;
		total =	h4tex2D( $glareMap, tc ) * bloom0;
		total += ( h4tex2D( $glareMap, tc + dir ) + h4tex2D( $glareMap, tc - dir ) ) * bloom1;
		dir += step;
		total += ( h4tex2D( $glareMap, tc + dir ) + h4tex2D( $glareMap, tc - dir ) ) * bloom2;
		dir += step;
		total += ( h4tex2D( $glareMap, tc + dir ) + h4tex2D( $glareMap, tc - dir ) ) * bloom3;
		dir += step;
		total += ( h4tex2D( $glareMap, tc + dir ) + h4tex2D( $glareMap, tc - dir ) ) * bloom4;
		dir += step;
		total += ( h4tex2D( $glareMap, tc + dir ) + h4tex2D( $glareMap, tc - dir ) ) * bloom5;
		dir += step;
		total += ( h4tex2D( $glareMap, tc + dir ) + h4tex2D( $glareMap, tc - dir ) ) * bloom6;
		dir += step;
		total += ( h4tex2D( $glareMap, tc + dir ) + h4tex2D( $glareMap, tc - dir ) ) * bloom7;

		result.hcolor = total * 2.0;			// hack for range?
	}
}