test.cpp

#include <cstdint>
#include <cstdio>

constexpr uint32_t val_32_const = 0x811c9dc5;
constexpr uint32_t prime_32_const = 0x1000193;

inline constexpr uint32_t FNV1a(const char* const str, const uint32_t value = val_32_const)
{
  return (str[0] == '\0') ? value : FNV1a(&str[1], (value ^ uint32_t(str[0])) * prime_32_const);
}

template <uint32_t Hash>
constexpr uint32_t TForceEval = Hash;

#define HASH(text) TForceEval<FNV1a(text)>

void SetTexture(uint32_t test, void* param)
{
	printf("%u\n", test);
}

int main() 
{
	SetTexture(HASH("Butts"), nullptr);
	SetTexture(HASH("Rule"), nullptr);
	SetTexture(HASH("The"), nullptr);
    	SetTexture(HASH("World"), nullptr);
}

asm = https://godbolt.org/z/Pf92MZ