Persson-dev/RealTimeFractal
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gen random device once

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This commit is contained in:
Simon Pribylski
2025-11-09 14:06:00 +01:00
parent 10b0b54e71
commit abb33b6f1f
1 changed files with 19 additions and 19 deletions
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38
src/Main.cpp
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@@ -100,6 +100,10 @@ static const std::filesystem::path s_ComputeShaderPath = "Shaders/Compute.glsl";
static const std::filesystem::path s_VertexShaderPath = "Shaders/Vertex.glsl"; static const std::filesystem::path s_VertexShaderPath = "Shaders/Vertex.glsl";
static const std::filesystem::path s_FragmentShaderPath = "Shaders/Fragment.glsl"; static const std::filesystem::path s_FragmentShaderPath = "Shaders/Fragment.glsl";
static std::random_device s_RandomDevice;
static std::mt19937 s_Generator(s_RandomDevice());
static std::uniform_real_distribution<float> s_Distrib(0, 1);
static void ErrorCallback(int error, const char* description) { static void ErrorCallback(int error, const char* description) {
std::cerr << "Error: " << description << std::endl; std::cerr << "Error: " << description << std::endl;
} }
@@ -110,33 +114,29 @@ static void ApplyTransforms(const std::vector<glm::mat4>& transformations) {
} }
static void GenNewFractal() { static void GenNewFractal() {
std::random_device randomDevice;
std::mt19937 generator(randomDevice());
std::uniform_real_distribution<float> distrib(0, 1);
// scale, rotation, shear, translation // scale, rotation, shear, translation
std::vector<glm::mat4> transformations(TRANSFORMATION_COUNT); std::vector<glm::mat4> transformations(TRANSFORMATION_COUNT);
for (std::size_t i = 0; i < transformations.size(); i++) { for (std::size_t i = 0; i < transformations.size(); i++) {
float scaleX = distrib(generator) * 0.4 + 0.4; float scaleX = s_Distrib(s_Generator) * 0.4 + 0.4;
float scaleY = distrib(generator) * 0.4 + 0.4; float scaleY = s_Distrib(s_Generator) * 0.4 + 0.4;
float scaleZ = distrib(generator) * 0.4 + 0.4; float scaleZ = s_Distrib(s_Generator) * 0.4 + 0.4;
float rotX = distrib(generator) * 2 * 3.14; float rotX = s_Distrib(s_Generator) * 2 * 3.14;
float rotY = distrib(generator) * 2 * 3.14; float rotY = s_Distrib(s_Generator) * 2 * 3.14;
float rotZ = distrib(generator) * 2 * 3.14; float rotZ = s_Distrib(s_Generator) * 2 * 3.14;
float shearXY = distrib(generator) * 0.2f - 0.1f; float shearXY = s_Distrib(s_Generator) * 0.2f - 0.1f;
float shearXZ = distrib(generator) * 0.2f - 0.1f; float shearXZ = s_Distrib(s_Generator) * 0.2f - 0.1f;
float shearYX = distrib(generator) * 0.2f - 0.1f; float shearYX = s_Distrib(s_Generator) * 0.2f - 0.1f;
float shearYZ = distrib(generator) * 0.2f - 0.1f; float shearYZ = s_Distrib(s_Generator) * 0.2f - 0.1f;
float shearZX = distrib(generator) * 0.2f - 0.1f; float shearZX = s_Distrib(s_Generator) * 0.2f - 0.1f;
float shearZY = distrib(generator) * 0.2f - 0.1f; float shearZY = s_Distrib(s_Generator) * 0.2f - 0.1f;
float translateX = distrib(generator) * 1.2f - 0.6f; float translateX = s_Distrib(s_Generator) * 1.2f - 0.6f;
float translateY = distrib(generator) * 1.2f - 0.6f; float translateY = s_Distrib(s_Generator) * 1.2f - 0.6f;
float translateZ = distrib(generator) * 1.2f - 0.6f; float translateZ = s_Distrib(s_Generator) * 1.2f - 0.6f;
auto scale = glm::scale(glm::mat4(1), {scaleX, scaleY, scaleZ}); auto scale = glm::scale(glm::mat4(1), {scaleX, scaleY, scaleZ});
auto rotateX = glm::rotate(scale, rotX, {1, 0, 0}); auto rotateX = glm::rotate(scale, rotX, {1, 0, 0});