add D3D11 project

2025-11-19 09:43:09 +01:00
parent 9134d2dc40
commit bff01f5adb
36 changed files with 2779 additions and 0 deletions
@@ -0,0 +1,129 @@
+#include "Mesh.h"
+#include "Utilities.h"
+#include "Vertex.h"
+#include <DirectXMath.h>
+
+using namespace DirectX;
+
+UINT Mesh::init(ID3D11Device* pD3DDevice)
+{
+	UINT error = 0;
+
+	error = createVertexBuffer(pD3DDevice);
+	CheckError(error);
+
+	error = createIndexBuffer(pD3DDevice);
+	CheckError(error);
+
+	// create world matrix
+	XMStoreFloat4x4(&_worldMatrix, XMMatrixIdentity());
+
+	return 0;
+}
+
+void Mesh::update(FLOAT dt)
+{
+	static FLOAT x = 0.0f;
+	static FLOAT y = 0.0f;
+	static FLOAT z = 0.0f;
+	static FLOAT rot = 0.0f;
+	rot += 1.0f * dt;
+
+	FLOAT move = 1.0f * dt;
+
+	if ((GetAsyncKeyState(VK_LEFT) & 0x8000) || (GetAsyncKeyState('A') & 0x8000)) x -= move;
+	if ((GetAsyncKeyState(VK_RIGHT) & 0x8000) || (GetAsyncKeyState('D') & 0x8000)) x += move;
+	if ((GetAsyncKeyState(VK_UP) & 0x8000) || (GetAsyncKeyState('W') & 0x8000)) y += move;
+	if ((GetAsyncKeyState(VK_DOWN) & 0x8000) || (GetAsyncKeyState('S') & 0x8000)) y -= move;
+	if ((GetAsyncKeyState(VK_ADD) & 0x8000) || (GetAsyncKeyState('Q') & 0x8000)) z -= move;
+	if ((GetAsyncKeyState(VK_SUBTRACT) & 0x8000) || (GetAsyncKeyState('E') & 0x8000)) z += move;
+
+	XMMATRIX translation = XMMatrixTranslation(x, y, z);
+	XMMATRIX rotation = XMMatrixRotationRollPitchYaw(0.0f, 0.0f, 0.0f);
+	XMMATRIX scale = XMMatrixScaling(1.0f, 1.0f, 1.0f);
+
+	XMVECTOR det = XMMatrixDeterminant(translation);
+
+	XMStoreFloat4x4(&_worldMatrix, scale * rotation * translation);
+}
+
+void Mesh::render(ID3D11DeviceContext* pD3DDeviceContext)
+{
+	// set data
+	static UINT offset = 0;
+	pD3DDeviceContext->IASetVertexBuffers(0, 1, &_pVertexBuffer, &_vertexStride, &offset);
+	pD3DDeviceContext->IASetIndexBuffer(_pIndexBuffer, DXGI_FORMAT_R16_UINT, 0);
+	pD3DDeviceContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
+
+	// draw
+	pD3DDeviceContext->DrawIndexed(_indexCount, 0, 0);
+}
+
+void Mesh::deInit()
+{
+	safeRelease(_pIndexBuffer);
+	safeRelease(_pVertexBuffer);
+}
+
+UINT Mesh::createVertexBuffer(ID3D11Device* pD3DDevice)
+{
+	// describe vertex buffer content
+	// quad with color
+	Vertex vertices[] = { Vertex(-0.5f, 0.5f, 0.0f, 255, 0, 0),
+	Vertex(0.5f, 0.5f, 0.0f, 0, 255, 0),
+	Vertex(0.5f, -0.5f, 0.0f, 255, 0, 255),
+	Vertex(-0.5f, -0.5f, 0.0f, 0, 0, 255) };
+
+
+	// quad with uv & normal
+	//Vertex vertices[] = {
+	//	Vertex(-0.5f, 0.5f, 0.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f),
+	//	Vertex(0.5f, 0.5f, 0.0f, 0.0f, 0.0f, -1.0f, 1.0f, 0.0f),
+	//	Vertex(0.5f, -0.5f, 0.0f, 0.0f, 0.0f, -1.0f, 1.0f, 1.0f),
+	//	Vertex(-0.5f, -0.5f, 0.0f, 0.0f, 0.0f, -1.0f, 0.0f, 1.0f)
+	//};
+
+	// general data
+	_vertexCount = std::size(vertices);
+	_vertexStride = sizeof(Vertex);
+
+	// create vertex buffer object
+	D3D11_BUFFER_DESC desc = {};
+	desc.ByteWidth = _vertexCount * _vertexStride; // size of vertex buffer in bytes
+	desc.BindFlags = D3D11_BIND_VERTEX_BUFFER;
+	desc.Usage = D3D11_USAGE_IMMUTABLE; // https://learn.microsoft.com/en-us/windows/win32/api/d3d11/ne-d3d11-d3d11_usage
+
+	D3D11_SUBRESOURCE_DATA data = {};
+	data.pSysMem = vertices;
+
+	HRESULT hr = pD3DDevice->CreateBuffer(&desc, &data, &_pVertexBuffer);
+	CheckFailed(hr, 30);
+
+	return 0;
+}
+
+UINT Mesh::createIndexBuffer(ID3D11Device* pD3DDevice)
+{
+	// describe index buffer content
+	WORD indices[] = {
+		0,1,2,
+		0,2,3
+	};
+
+	// general data
+	_indexCount = std::size(indices);
+
+	// create index buffer object
+	D3D11_BUFFER_DESC desc = {};
+	desc.ByteWidth = _indexCount * sizeof(WORD); // size of index buffer in bytes
+	desc.BindFlags = D3D11_BIND_INDEX_BUFFER;
+	desc.Usage = D3D11_USAGE_IMMUTABLE;
+
+	D3D11_SUBRESOURCE_DATA data = {};
+	data.pSysMem = indices;
+
+	HRESULT hr = pD3DDevice->CreateBuffer(&desc, &data, &_pIndexBuffer);
+	CheckFailed(hr, 32);
+
+	return 0;
+}