mirror of
https://github.com/KhronosGroup/Vulkan-Hpp
synced 2024-11-25 21:40:04 +00:00
38 lines
1.4 KiB
C++
38 lines
1.4 KiB
C++
// Copyright(c) 2019, NVIDIA CORPORATION. All rights reserved.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
//
|
|
|
|
#include "math.hpp"
|
|
|
|
namespace vk
|
|
{
|
|
namespace su
|
|
{
|
|
glm::mat4x4 createModelViewProjectionClipMatrix(vk::Extent2D const& extent)
|
|
{
|
|
float fov = glm::radians(45.0f);
|
|
if (extent.width > extent.height)
|
|
{
|
|
fov *= static_cast<float>(extent.height) / static_cast<float>(extent.width);
|
|
}
|
|
|
|
glm::mat4x4 model = glm::mat4x4(1.0f);
|
|
glm::mat4x4 view = glm::lookAt(glm::vec3(-5.0f, 3.0f, -10.0f), glm::vec3(0.0f, 0.0f, 0.0f), glm::vec3(0.0f, -1.0f, 0.0f));
|
|
glm::mat4x4 projection = glm::perspective(fov, 1.0f, 0.1f, 100.0f);
|
|
glm::mat4x4 clip = glm::mat4x4(1.0f, 0.0f, 0.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.5f, 0.0f, 0.0f, 0.0f, 0.5f, 1.0f); // vulkan clip space has inverted y and half z !
|
|
return clip * projection * view * model;
|
|
}
|
|
}
|
|
}
|