{
	state {
		depthfunc	GL_ALWAYS
		depthmask
		twosided
	}
	
	hlsl_vp {

		result.position = vertex.position;
		result.position.xy = ( result.position.xy * $godRayQuadScaleBias.xy ) + $godRaySourceScaleBias.zw;
#ifndef PS3
		result.texcoord1 = vertex.position;
		result.texcoord1.xy = ( result.texcoord1.xy * $godRaySourceScaleBias.xy ) + $godRaySourceScaleBias.zw;

		result.texcoord1.zw = ( result.texcoord1.xy - $godRaySourceScaleBias.zw );

//#define DEBUG_MASK
#ifdef DEBUG_MASK
		result.texcoord3.xy = result.position.xy;
#endif
#endif
	}

	hlsl_fp {
#ifdef PS3
		result.hcolor = float4( 0, 0, 0, 0 );
#else
#ifdef DEBUG_MASK
		float4 debugMinMax = float4( $godRaySourceScaleBias.z - $godRaySourceScaleBias.x, $godRaySourceScaleBias.z + $godRaySourceScaleBias.x, $godRaySourceScaleBias.w - $godRaySourceScaleBias.y, $godRaySourceScaleBias.w + $godRaySourceScaleBias.y );
		if ( fragment.texcoord3.x > debugMinMax.x && fragment.texcoord3.x < debugMinMax.y && fragment.texcoord3.y > debugMinMax.z && fragment.texcoord3.y < debugMinMax.w ) {
			result.hcolor = float4( 1, 0, 1, 1 );
			return;
		}
		result.hcolor = $godRayColor;
		return;
#endif

#ifdef PC
		const int NUM_STEPS = 32;
#else
		const int NUM_STEPS = 8;
#endif

		float2 depthMapCoord = ( fragment.texcoord1.xy * 0.5f ) + 0.5f;
		const float2 depthMapStep = ( fragment.texcoord1.zw ) / NUM_STEPS;

		result.hcolor = float4( 0, 0, 0, 0 );
		for ( int i = 0; i < NUM_STEPS; i++ ) {
#ifdef XBOX
			const float depth = tex2Ddepth( $viewDepthMap, float2( depthMapCoord.x, 1 - depthMapCoord.y ) );
#else
			const float depth = tex2Ddepth( $viewDepthMap, depthMapCoord.xy );
#endif
			float depthMul = saturate( sign( depth - 0.999999f ) );
				
			float2 colorMapCoord = ( depthMapCoord - $godRayQuadScaleBias.zw ) / $godRaySourceScaleBias.xy;
			colorMapCoord = saturate( colorMapCoord + float2( 0.5f, 0.5f ) );

			result.hcolor.xyz += $godRayColor.xyz * h4tex2D( $transMap, colorMapCoord ).xyz * depthMul * $godRayColor.w;

			depthMapCoord += depthMapStep;
		}
#endif
	}
}