Persson-dev/RealTimeFractal
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now in 3D

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This commit is contained in:
Simon Pribylski
2025-11-09 11:59:46 +01:00
parent b54bb6a136
commit 6a874a01bb
3 changed files with 41 additions and 15 deletions
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20
src/Main.cpp
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@@ -54,7 +54,7 @@ static void KeyCallback(GLFWwindow* window, int key, int scancode, int action, i
if (key == GLFW_KEY_R) {
s_ComputeShader = ReloadComputeShader(s_ComputeShader, s_ComputeShaderPath);
s_GraphicsShader = ReloadGraphicsShader(s_GraphicsShader, s_VertexShaderPath, s_FragmentShaderPath);
glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(float) * PARTICLE_COUNT * 2, nullptr, GL_DYNAMIC_COPY);
glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(float) * PARTICLE_COUNT * 3, nullptr, GL_DYNAMIC_COPY);
}
}
@@ -66,11 +66,11 @@ static GLuint CreateDummyVAO() {
glCreateBuffers(1, &vertexBuffer);
// Buffer with just one point
float vertices[] = {0.0f, 0.0f};
float vertices[] = {0.0f, 0.0f, 0.0f};
glNamedBufferData(vertexBuffer, sizeof(vertices), vertices, GL_STATIC_DRAW);
glVertexArrayVertexBuffer(vertexArray, 0, vertexBuffer, 0, sizeof(float) * 2);
glVertexArrayVertexBuffer(vertexArray, 0, vertexBuffer, 0, sizeof(float) * 3);
glEnableVertexArrayAttrib(vertexArray, 0);
glVertexArrayAttribFormat(vertexArray, 0, 2, GL_FLOAT, GL_FALSE, 0);
glVertexArrayAttribFormat(vertexArray, 0, 3, GL_FLOAT, GL_FALSE, 0);
glVertexArrayAttribBinding(vertexArray, 0, 0);
return vertexArray;
@@ -81,7 +81,7 @@ static void CreateGpuBuffer() {
glGenBuffers(1, &ssbo);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, ssbo);
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 3, ssbo);
glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(float) * 2 * PARTICLE_COUNT, nullptr,
glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(float) * 3 * PARTICLE_COUNT, nullptr,
GL_DYNAMIC_COPY); // sizeof(data) only works for statically sized C/C++ arrays.
}
@@ -174,6 +174,16 @@ int main() {
glClear(GL_COLOR_BUFFER_BIT);
glClearColor(0, 0, 0, 1);
// float positions[3 * PARTICLE_COUNT];
// glGetBufferSubData(GL_SHADER_STORAGE_BUFFER, 0, sizeof(float) * 3 * PARTICLE_COUNT, positions);
// std::cout << "Positions :\n";
// for (size_t i = 0; i < PARTICLE_COUNT; i++)
// {
// std::cout << "\t" << positions[i * 3] << " " << positions[i * 3 + 1] << " " << positions[i * 3 + 2] << "\n";
// }
fps++;
}