update instance buffer & handle camera on window resize

1 files changed, 11 insertions, 1 deletions

diff --git a/src/window.cpp b/src/window.cpp
index b32ea15..f567820 100644
--- a/src/window.cpp
+++ b/src/window.cpp
@@ -3,6 +3,9 @@
 
 #include "window.hpp"
 
+#include "glm/ext/matrix_transform.hpp"
+#include "glm/gtc/matrix_transform.hpp"
+
 #define NELEMS(x)  (sizeof(x) / sizeof((x)[0]))
 
 const bool ENABLE_VALIDATION_LAYERS = true;
@@ -73,7 +76,7 @@ VkSemaphore presentRenderFinishedSemaphores[MAX_FRAMES_IN_FLIGHT];
 VkFence presentInFlightFences[MAX_FRAMES_IN_FLIGHT];
 UniformBufferObject UBO{
 	.model = glm::mat4(1),
-	.view = glm::mat4(1),
+	.view = glm::lookAt(glm::vec3(0), glm::vec3(2, 2, 0), glm::vec3(0, 0, 1)),
 	.proj = glm::mat4(1),
 };
 VkDeviceMemory uniformBufferMemory;
@@ -725,6 +728,11 @@ void UpdatePresentDescriptorSets() {
 	vkUpdateDescriptorSets(vkDevice, MAX_FRAMES_IN_FLIGHT, writeDescriptorSets, 0, nullptr);
 }
 
+void UpdateCameraProjection() {
+	UBO.proj = glm::perspective(glm::radians(45.f), extent.width / (float)extent.height, 0.1f, 100.f);
+	UBO.proj[1][1] *= -1;
+}
+
 void CreateRenderPass() {
 	VkAttachmentDescription colorAttachment;
 	colorAttachment.flags = {};
@@ -1466,6 +1474,7 @@ void RecreateSwapchain() {
 	DestroySwapchain();
 	CreateSwapchain();
 	UpdatePresentDescriptorSets();
+	UpdateCameraProjection();
 	CreateFramebuffers();
 	shouldRecreateSwapchain = false;
 }
@@ -1488,6 +1497,7 @@ void CreateWindow(PKEWindowProperties *wp) {
 	CreateRenderPass();
 	CreateGraphicsPipeline();
 	UpdatePresentDescriptorSets();
+	UpdateCameraProjection();
 	CreateFramebuffers();
 	CreateCommandPool();
 	CreateCommandBuffer();