BansheeEngine/Data/Raw/Editor/Includes/PickingAlphaCull.bslinc

Parameters =
{
	mat4x4		matWorldViewProj;
	
	float		alphaCutoff;
	float4		colorIndex;
	
	Sampler2D 	mainTexSamp : alias("mainTexture");
	Texture2D 	mainTexture;	
};

Technique : base("PickingAlphaCull") =
{
	Language = "HLSL11";
	
	Pass =
	{
		Scissor = true;

		Vertex =
		{
			float4x4 matWorldViewProj;

			void main(
				in float3 inPos : POSITION,
				in float3 inNorm : NORMAL,
				in float2 uv : TEXCOORD0,
				out float4 oPosition : SV_Position,
				out float4 oNorm : NORMAL,
				out float2 oUv : TEXCOORD0)
			{
				oPosition = mul(matWorldViewProj, float4(inPos.xyz, 1));
				oNorm = float4(inNorm, 0);
				oUv = uv;
			}
		};
		
		Fragment =
		{
			SamplerState mainTexSamp : register(s0);
			Texture2D mainTexture : register(t0);

			float4 colorIndex;
			float alphaCutoff;

			float4 main(
				in float4 inPos : SV_Position,
				in float4 inNorm : NORMAL,
				in float2 uv : TEXCOORD0,
				out float4 oNorm : SV_Target1) : SV_Target0
			{
				float4 color = mainTexture.Sample(mainTexSamp, uv);
				oNorm = (inNorm + float4(1,1,1,0)) / 2;
				if(color.a < alphaCutoff)
					discard;
				
				return colorIndex;
			}
		};
	};
};

Technique : base("PickingAlphaCull") =
{
	Language = "HLSL9";
	
	Pass =
	{
		Scissor = true;

		Vertex =
		{
			float4x4 matWorldViewProj;

			void main(
				in float3 inPos : POSITION,
				in float2 uv : TEXCOORD0,
				out float4 oPosition : POSITION,
				out float2 oUv : TEXCOORD0)
			{
				oPosition = mul(matWorldViewProj, float4(inPos.xyz, 1));
				oUv = uv;
			}
		};
		
		Fragment =
		{
			sampler2D mainTexture;

			float4 colorIndex;
			float alphaCutoff;

			float4 main(
				in float4 inPos : POSITION,
				in float2 uv : TEXCOORD0) : COLOR0
			{
				float4 color = tex2D(mainTexture, uv);
				if(color.a < alphaCutoff)
					discard;
				
				return colorIndex;
			}
		};
	};
};

Technique : base("PickingAlphaCull") =
{
	Language = "GLSL";
	
	Pass =
	{
		Scissor = true;

		Vertex =
		{
			uniform mat4 matWorldViewProj;
			in vec3 bs_position;
			in vec2 bs_texcoord0;
			in vec3 bs_normal;
			out vec4 normal
			out vec2 texcoord0;

			out gl_PerVertex
			{
				vec4 gl_Position;
			};
			
			void main()
			{
				gl_Position = matWorldViewProj * vec4(bs_position.xyz, 1);
				texcoord0 = bs_texcoord0;
				normal = vec4(bs_normal, 0);
			}
		};
		
		Fragment =
		{
			uniform sampler2D mainTexture;
			uniform vec4 colorIndex;
			uniform float alphaCutoff;
			in vec4 normal;
			in vec2 texcoord0;
			out vec4 normalsColor;
			out vec4 fragColor;

			void main()
			{
				vec4 color = texture2D(mainTexture, texcoord0);
				if(color.a < alphaCutoff)
					discard;
					
				normalsColor = (normal + vec4(1,1,1,0)) / 2;
				fragColor = colorIndex;
			}
		};
	};
};