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Have 100 cubes flying around in a circle with refraction.

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This commit is contained in:
Zed A. Shaw 2026-09-09 13:36:53 -04:00
parent 1107c86036
commit a199d41890
7 changed files with 29 additions and 15 deletions
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21
27-instancing/src/scene.cpp
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@ -84,11 +84,14 @@ void Scene::spawn(const std::string& name, components::Position& position, compo
}
}
void Scene::setup_instancing() {
void Scene::time_warp() {
float time = glfwGetTime();
for(size_t i = 0; i < INSTANCE_COUNT; i++) {
translations[i].x = (float)i;
translations[i].z = (float)i;
translations[i].y = 0.0f;
auto& t = translations[i];
float factor = (float)i / 3.0f;
t.y = cos((time + i)) * factor;
t.z = sin((time + i)) * factor;
t.x = sin((time + i)) * factor;
}
glGenBuffers(1, &instanceVBO);
@ -104,12 +107,16 @@ void Scene::setup_instancing() {
glBindBuffer(GL_ARRAY_BUFFER, 0);
glVertexAttribDivisor(3, 1);
}
}
// this works
shader.use();
void Scene::setup_instancing() {
for(size_t i = 0; i < INSTANCE_COUNT; i++) {
shader.setVec3(std::format("offsets[{}]", i), translations[i]);
translations[i].x = (float)i;
translations[i].z = (float)i;
translations[i].y = (float)i;
}
time_warp();
}
void Scene::init_skybox() {