78eb5043f9
- For physical storage pointers, emit forward reference declarations in addition to definitions. - Minor syntax corrections.
44 lines
1.6 KiB
Plaintext
44 lines
1.6 KiB
Plaintext
#include <metal_stdlib>
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#include <simd/simd.h>
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using namespace metal;
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struct Position;
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struct PositionReferences;
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struct Position
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{
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float2 positions[1];
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};
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struct Registers
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{
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device PositionReferences* references;
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float fract_time;
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};
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struct PositionReferences
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{
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device Position* buffers[1];
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};
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constant uint3 gl_WorkGroupSize [[maybe_unused]] = uint3(8u, 8u, 1u);
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kernel void main0(constant Registers& registers [[buffer(0)]], uint3 gl_GlobalInvocationID [[thread_position_in_grid]], uint3 gl_NumWorkGroups [[threadgroups_per_grid]], uint3 gl_WorkGroupID [[threadgroup_position_in_grid]])
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{
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uint2 local_offset = gl_GlobalInvocationID.xy;
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uint local_index = ((local_offset.y * 8u) * gl_NumWorkGroups.x) + local_offset.x;
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uint slice = gl_WorkGroupID.z;
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device Position* positions = registers.references->buffers[slice];
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float offset = 6.283125400543212890625 * fract(registers.fract_time + (float(slice) * 0.100000001490116119384765625));
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float2 pos = float2(local_offset);
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pos.x += (0.20000000298023223876953125 * sin((2.2000000476837158203125 * pos.x) + offset));
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pos.y += (0.20000000298023223876953125 * sin((2.25 * pos.y) + (2.0 * offset)));
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pos.x += (0.20000000298023223876953125 * cos((1.7999999523162841796875 * pos.y) + (3.0 * offset)));
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pos.y += (0.20000000298023223876953125 * cos((2.849999904632568359375 * pos.x) + (4.0 * offset)));
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pos.x += (0.5 * sin(offset));
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pos.y += (0.5 * sin(offset + 0.300000011920928955078125));
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positions->positions[local_index] = (pos / ((float2(8.0) * float2(gl_NumWorkGroups.xy)) - float2(1.0))) - float2(0.5);
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}
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