From 525f5aa7f6954b8b18c187c0eeeb2d0521842461 Mon Sep 17 00:00:00 2001
From: redstrate <54911369+redstrate@users.noreply.github.com>
Date: Wed, 23 Sep 2020 12:21:15 -0400
Subject: [PATCH] Flip vulkan viewport

---
 engine/gfx/vulkan/src/gfx_vulkan.cpp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/engine/gfx/vulkan/src/gfx_vulkan.cpp b/engine/gfx/vulkan/src/gfx_vulkan.cpp
index e97c9ef..56fb670 100755
--- a/engine/gfx/vulkan/src/gfx_vulkan.cpp
+++ b/engine/gfx/vulkan/src/gfx_vulkan.cpp
@@ -86,7 +86,6 @@ VkBlendFactor toVkFactor(GFXBlendFactor factor) {
 	return VK_BLEND_FACTOR_ONE;
 }
 
-
 VKAPI_ATTR VkBool32 VKAPI_CALL DebugCallback(
     VkDebugUtilsMessageSeverityFlagBitsEXT messageSeverity,
     VkDebugUtilsMessageTypeFlagsEXT messageType,
@@ -835,8 +834,9 @@ void GFXVulkan::submit(GFXCommandBuffer* command_buffer, const int identifier) {
 				renderPassInfo.framebuffer = framebuffer->handle;
 
                 VkViewport viewport = {};
+				viewport.y = static_cast<float>(framebuffer->height);
                 viewport.width = static_cast<float>(framebuffer->width);
-                viewport.height = static_cast<float>(framebuffer->height);
+                viewport.height = -static_cast<float>(framebuffer->height);
                 viewport.maxDepth = 1.0f;
 
                 vkCmdSetViewport(commandBuffers[imageIndex], 0, 1, &viewport);
@@ -851,8 +851,9 @@ void GFXVulkan::submit(GFXCommandBuffer* command_buffer, const int identifier) {
 				renderPassInfo.framebuffer = swapchainFramebuffers[imageIndex];
 
                 VkViewport viewport = {};
+				viewport.y = static_cast<float>(surfaceHeight);
                 viewport.width = static_cast<float>(surfaceWidth);
-                viewport.height = static_cast<float>(surfaceHeight);
+                viewport.height = -static_cast<float>(surfaceHeight);
                 viewport.maxDepth = 1.0f;
 
                 vkCmdSetViewport(commandBuffers[imageIndex], 0, 1, &viewport);