|  | uniform half4 colorGreen, colorRed; | 
|  |  | 
|  | half4 main(float2 coords) { | 
|  | const float2x3 f23 = matrixCompMult(float2x3(4), float2x3(5)); | 
|  | const half3x2 h32 = matrixCompMult(half3x2(5), half3x2(3)); | 
|  | half2x4 h24 = matrixCompMult(half2x4(9, 9, 9, 9, 9, 9, 9, 9), | 
|  | half2x4(colorRed, colorGreen)); | 
|  | half4x2 h42 = matrixCompMult(half4x2(1, 2, 3, 4, 5, 6, 7, 8), | 
|  | half4x2(colorRed, colorGreen)); | 
|  | const float3x4 f34 = matrixCompMult(float3x4(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12), | 
|  | float3x4(12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1)); | 
|  | float4x3 f43 = matrixCompMult(float4x3(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12), | 
|  | float4x3(12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1)); | 
|  | return (f23 == float2x3(20) && | 
|  | h32 == half3x2(15) && | 
|  | h24 == half2x4(9, 0, 0, 9, 0, 9, 0, 9) && | 
|  | h42 == half4x2(1, 0, 0, 4, 0, 6, 0, 8) && | 
|  | f34 == float3x4(12, 22, 30, 36, 40, 42, 42, 40, 36, 30, 22, 12) && | 
|  | f43 == float4x3(12, 22, 30, 36, 40, 42, 42, 40, 36, 30, 22, 12)) ? colorGreen | 
|  | : colorRed; | 
|  | } |