Steve2/A2Mac/Shaders.metal

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Metal
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//
// Shaders.metal
// A2Mac
//
// Created by Tamas Rudnai on 9/27/19.
// Copyright © 2019 GameAlloy. All rights reserved.
//
#include <metal_stdlib>
using namespace metal;
vertex float4 basic_vertex( // 1
const device packed_float3* vertex_array [[ buffer(0) ]], // 2
unsigned int vid [[ vertex_id ]]) { // 3
return float4(vertex_array[vid], 1.0); // 4
}
fragment half4 basic_fragment() { // 1
return half4(0.7); // 2
}
kernel void add_arrays(device const float* inA,
device const float* inB,
device float* result,
uint index [[thread_position_in_grid]])
{
// the for-loop is replaced with a collection of threads, each of which
// calls this function.
result[index] = inA[index] + inB[index] + 1;
}