| 125 | return ret; |
| 126 | } |
| 127 | glm::vec4 noise4(glm::vec4 pos) |
| 128 | { |
| 129 | glm::vec4 ret(0.0f); |
| 130 | |
| 131 | lib_glsl_noiseGenerator.SetNoiseType(FastNoise::NoiseType::WhiteNoise); |
| 132 | lib_glsl_noiseGenerator.SetSeed(40000); |
| 133 | ret.x = lib_glsl_noiseGenerator.GetWhiteNoise(pos.x, pos.y, pos.z, pos.w); |
| 134 | lib_glsl_noiseGenerator.SetSeed(41000); |
| 135 | ret.y = lib_glsl_noiseGenerator.GetWhiteNoise(pos.x, pos.y, pos.z, pos.w); |
| 136 | lib_glsl_noiseGenerator.SetSeed(42000); |
| 137 | ret.z = lib_glsl_noiseGenerator.GetWhiteNoise(pos.x, pos.y, pos.z, pos.w); |
| 138 | lib_glsl_noiseGenerator.SetSeed(43000); |
| 139 | ret.w = lib_glsl_noiseGenerator.GetWhiteNoise(pos.x, pos.y, pos.z, pos.w); |
| 140 | |
| 141 | return ret; |
| 142 | } |
| 143 | |
| 144 | /* trigonometry */ |
| 145 | bv_variable lib_glsl_acosh(bv_program* prog, u8 count, bv_variable* args) |