SPIRV-Cross/reference/shaders-msl/vert/buffer_device_address.msl2.vert
Bill Hollings 78eb5043f9 MSL: Fixes from review for SPV_KHR_physical_storage_buffer extension.
- For physical storage pointers, emit forward reference
  declarations in addition to definitions.
- Minor syntax corrections.
2022-06-24 17:28:17 -04:00

50 lines
1.4 KiB
GLSL

#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
struct Position;
struct PositionReferences;
struct Position
{
float2 positions[1];
};
struct Registers
{
float4x4 view_projection;
device PositionReferences* references;
};
struct PositionReferences
{
device Position* buffers[1];
};
struct main0_out
{
float4 out_color [[user(locn0)]];
float4 gl_Position [[position]];
};
vertex main0_out main0(constant Registers& registers [[buffer(0)]], uint gl_InstanceIndex [[instance_id]], uint gl_VertexIndex [[vertex_id]])
{
main0_out out = {};
int slice = int(gl_InstanceIndex);
const device Position* positions = registers.references->buffers[slice];
float2 pos = positions->positions[int(gl_VertexIndex)] * 2.5;
pos += ((float2(float(slice % 8), float(slice / 8)) - float2(3.5)) * 3.0);
out.gl_Position = registers.view_projection * float4(pos, 0.0, 1.0);
int index_x = int(gl_VertexIndex) % 16;
int index_y = int(gl_VertexIndex) / 16;
float r = 0.5 + (0.300000011920928955078125 * sin(float(index_x)));
float g = 0.5 + (0.300000011920928955078125 * sin(float(index_y)));
int checkerboard = (index_x ^ index_y) & 1;
r *= ((float(checkerboard) * 0.800000011920928955078125) + 0.20000000298023223876953125);
g *= ((float(checkerboard) * 0.800000011920928955078125) + 0.20000000298023223876953125);
out.out_color = float4(r, g, 0.1500000059604644775390625, 1.0);
return out;
}