Created a working camera controlled by the UI, next step is to incorporate Input class and have it be mouse/keyboard controlled

Renderer/Renderer.cpp

@@ -18,16 +18,6 @@
 
 #include <UI/UI.hpp>
 
-
-// const static std::vector<Vertex> triangle = {
-// 	{{ 1.0, -1.0, -1.0 }, {}, { 1.0, 0.0 }},
-// 	{{ 1.0,  1.0, -1.0 }, {}, { 1.0, 1.0 }},
-// 	{{-1.0,  1.0, -1.0 }, {}, { 0.0, 1.0 }},
-// 	{{-1.0,  1.0, -1.0 }, {}, { 0.0, 1.0 }},
-// 	{{-1.0, -1.0, -1.0 }, {}, { 0.0, 0.0 }},
-// 	{{ 1.0, -1.0, -1.0 }, {}, { 1.0, 0.0 }},
-// };
-
 using namespace std::string_literals;
 
 Renderer::Renderer(Window& win) : win(win) {
@@ -325,7 +315,7 @@ void Renderer::draw() {
 	const auto t = static_cast<float>(frame) * 0.0167f;
 
 	uniform_buffer->upload(UniformData{
-		.mvp = p * glm::rotate(glm::translate(glm::mat4(1.0), -glm::vec3(0.0, 0.0, 3.0) * t / 3.0f), t, glm::vec3(1.0, 0.0, 0.0)),
+		.mvp = p * cam.view(),
 		.time = t,
 		.aspect_ratio = static_cast<float>(sz.width)/static_cast<float>(sz.height),
 	});

Renderer/Renderer.hpp

@@ -9,6 +9,8 @@
 #include <Renderer/CommandBuffer.hpp>
 #include <Renderer/RenderPass.hpp>
 
+#include <Scene/Camera.hpp>
+
 #include <Model/Model.hpp>
 
 #include <UI/UI.hpp>
@@ -57,4 +59,6 @@ struct Renderer {
 
 	std::vector<std::shared_ptr<Model>> models;
 	std::unique_ptr<UI> ui;
+
+	Camera cam {};
 };

Scene/Camera.hpp

@@ -0,0 +1,20 @@
+#pragma once
+
+#include <glm/glm.hpp>
+#include <glm/gtc/quaternion.hpp>
+
+using glm::sin;
+using glm::cos;
+
+struct Camera {
+	/* using the math convention of theta = azimuthal */
+	float theta = glm::radians(90.0f);
+	float phi = 0.0f;
+	/* r always = 1 */
+	
+	glm::vec3 pos = glm::vec3(0.0f);
+
+	inline glm::mat4 view() {
+		return glm::lookAt(pos, pos+glm::vec3(sin(theta) * cos(phi), cos(theta), sin(theta) * sin(phi)), glm::vec3(0.0, 1.0, 0.0));
+	}
+};

UI/UI.cpp

@@ -9,7 +9,9 @@
 
 #include <Renderer/Renderer.hpp>
 
-UI::UI(Renderer* ren) : dev(ren->dev) {
+#include <Scene/Camera.hpp>
+
+UI::UI(Renderer* ren) : dev(ren->dev), info{ .cam = ren->cam } {
 	IMGUI_CHECKVERSION();
 	ImGui::CreateContext();
 
@@ -88,6 +90,11 @@ void UI::newFrame() {
 	ImGui::Begin("Rendering Info", nullptr);
 
 	ImGui::Text("FPS: %f", info.fps);
+	ImGui::SliderAngle("Theta", &info.cam.theta, 0.01, 179.9);
+	ImGui::SliderAngle("Phi", &info.cam.phi);
+	ImGui::SliderFloat("cam.x", &info.cam.pos.x, -1e2, 1e2);
+	ImGui::SliderFloat("cam.y", &info.cam.pos.y, -1e2, 1e2);
+	ImGui::SliderFloat("cam.z", &info.cam.pos.z, -1e2, 1e2);
 
 	ImGui::End();
 }

UI/UI.hpp

@@ -6,10 +6,13 @@
 #include <Renderer/CommandBuffer.hpp>
 
 struct Renderer;
+struct Camera;
 
 struct UI {
 	struct UI_Info {
 		float fps = 0.0;
+		/* camera stuff */
+		Camera& cam;
 	} info;
 
 	vk::Device dev;