Well today in SG220 we covered chapter 3 in our books. It talked about how the light system works in a level. The image upove presents the look and feel of the project.
Our goal now is to mess around with the code and make the light source look different. An update will be posted in the next few days. The code we are messing with is below:
/*
Demo Name: D3D Lighting
Author: Allen Sherrod
Chapter: Ch 2
*/
#include
#include
#define WINDOW_CLASS "UGPDX"
#define WINDOW_NAME "Lighting Built-in Direct3D Shapes"
#define WINDOW_WIDTH 640
#define WINDOW_HEIGHT 480
// Function Prototypes...
bool InitializeD3D(HWND hWnd, bool fullscreen);
bool InitializeObjects();
void RenderScene();
void Shutdown();
// Direct3D object and device.
LPDIRECT3D9 g_D3D = NULL;
LPDIRECT3DDEVICE9 g_D3DDevice = NULL;
// Matrices.
D3DXMATRIX g_projection;
D3DXMATRIX g_ViewMatrix;
D3DXMATRIX g_WorldMatrix;
// Mesh objects
LPD3DXMESH g_teapot = NULL;
LPD3DXMESH g_cube = NULL;
LPD3DXMESH g_sphere = NULL;
LPD3DXMESH g_torus = NULL;
D3DMATERIAL9 g_material;
// Scene light source.
D3DLIGHT9 g_light;
LRESULT WINAPI MsgProc(HWND hWnd, UINT msg, WPARAM wp, LPARAM lp)
{
switch(msg)
{
case WM_DESTROY:
PostQuitMessage(0);
return 0;
break;
case WM_KEYUP:
if(wp == VK_ESCAPE) PostQuitMessage(0);
break;
}
return DefWindowProc(hWnd, msg, wp, lp);
}
int WINAPI WinMain(HINSTANCE hInst, HINSTANCE ph, LPSTR cmd, int s)
{
// Register the window class
WNDCLASSEX wc = { sizeof(WNDCLASSEX), CS_CLASSDC, MsgProc, 0L, 0L,
GetModuleHandle(NULL), NULL, NULL, NULL, NULL,
WINDOW_CLASS, NULL };
RegisterClassEx(&wc);
// Create the application's window
HWND hWnd = CreateWindow(WINDOW_CLASS, WINDOW_NAME,
WS_OVERLAPPEDWINDOW, 100, 100, WINDOW_WIDTH, WINDOW_HEIGHT,
GetDesktopWindow(), NULL, wc.hInstance, NULL);
// Initialize Direct3D
if(InitializeD3D(hWnd, false))
{
// Show the window
ShowWindow(hWnd, SW_SHOWDEFAULT);
UpdateWindow(hWnd);
// Enter the message loop
MSG msg;
ZeroMemory(&msg, sizeof(msg));
while(msg.message != WM_QUIT)
{
if(PeekMessage(&msg, NULL, 0U, 0U, PM_REMOVE))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
else
RenderScene();
}
}
// Release any and all resources.
Shutdown();
// Unregister our window.
UnregisterClass(WINDOW_CLASS, wc.hInstance);
return 0;
}
bool InitializeD3D(HWND hWnd, bool fullscreen)
{
D3DDISPLAYMODE displayMode;
// Create the D3D object.
g_D3D = Direct3DCreate9(D3D_SDK_VERSION);
if(g_D3D == NULL) return false;
// Get the desktop display mode.
if(FAILED(g_D3D->GetAdapterDisplayMode(D3DADAPTER_DEFAULT,
&displayMode))) return false;
// Set up the structure used to create the D3DDevice
D3DPRESENT_PARAMETERS d3dpp;
ZeroMemory(&d3dpp, sizeof(d3dpp));
if(fullscreen)
{
d3dpp.Windowed = FALSE;
d3dpp.BackBufferWidth = WINDOW_WIDTH;
d3dpp.BackBufferHeight = WINDOW_HEIGHT;
}
else
d3dpp.Windowed = TRUE;
d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
d3dpp.BackBufferFormat = displayMode.Format;
// Create the D3DDevice
if(FAILED(g_D3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL,
hWnd, D3DCREATE_SOFTWARE_VERTEXPROCESSING, &d3dpp,
&g_D3DDevice))) return false;
// Set the projection matrix.
D3DXMatrixPerspectiveFovLH(&g_projection, 45.0f,
WINDOW_WIDTH/WINDOW_HEIGHT, 0.1f, 1000.0f);
g_D3DDevice->SetTransform(D3DTS_PROJECTION, &g_projection);
// Initialize any objects we will be displaying.
if(!InitializeObjects()) return false;
return true;
}
bool InitializeObjects()
{
// Set default rendering states.
g_D3DDevice->SetRenderState(D3DRS_LIGHTING, TRUE);
g_D3DDevice->SetRenderState(D3DRS_AMBIENT,
D3DCOLOR_COLORVALUE(0.3f, 0.3f, 0.3f, 1.0f));
// Setup the light source.
g_light.Type = D3DLIGHT_DIRECTIONAL;
g_light.Direction = D3DXVECTOR3(0.0f, 0.0f, 1.0f);
g_light.Diffuse.r = g_light.Diffuse.g = 1;
g_light.Diffuse.b = g_light.Diffuse.a = 1;
g_light.Specular.r = g_light.Specular.g = 1;
g_light.Specular.b = g_light.Specular.a = 1;
// Register the light.
g_D3DDevice->SetLight(0, &g_light);
g_D3DDevice->LightEnable(0, TRUE);
// Setup the material properties for the teapot.
ZeroMemory(&g_material, sizeof(D3DMATERIAL9));
g_material.Diffuse.r = g_material.Ambient.r = 0.6f;
g_material.Diffuse.g = g_material.Ambient.g = 0.6f;
g_material.Diffuse.b = g_material.Ambient.b = 0.7f;
g_material.Specular.r = 0.4f;
g_material.Specular.g = 0.4f;
g_material.Specular.b = 0.4f;
g_material.Power = 8.0f;
// Create the objects.
if(FAILED(D3DXCreateTeapot(g_D3DDevice, &g_teapot, NULL)))
return false;
if(FAILED(D3DXCreateBox(g_D3DDevice, 2, 2, 2, &g_cube, NULL)))
return false;
if(FAILED(D3DXCreateSphere(g_D3DDevice, 1.5, 25, 25,
&g_sphere, NULL))) return false;
if(FAILED(D3DXCreateTorus(g_D3DDevice, 0.5f, 1.2f, 25, 25,
&g_torus, NULL))) return false;
// Define camera information.
D3DXVECTOR3 cameraPos(0.0f, 0.0f, -8.0f);
D3DXVECTOR3 lookAtPos(0.0f, 0.0f, 0.0f);
D3DXVECTOR3 upDir(0.0f, 1.0f, 0.0f);
// Build view matrix.
D3DXMatrixLookAtLH(&g_ViewMatrix, &cameraPos, &lookAtPos, &upDir);
return true;
}
void RenderScene()
{
// Clear the backbuffer.
g_D3DDevice->Clear(0, NULL, D3DCLEAR_TARGET,
D3DCOLOR_XRGB(0,0,0), 1.0f, 0);
// Begin the scene. Start rendering.
g_D3DDevice->BeginScene();
// Apply the view (camera).
g_D3DDevice->SetTransform(D3DTS_VIEW, &g_ViewMatrix);
// Draw teapot.
D3DXMatrixTranslation(&g_WorldMatrix, 2.0f, -2.0, 0.0f);
g_D3DDevice->SetTransform(D3DTS_WORLD, &g_WorldMatrix);
g_D3DDevice->SetMaterial(&g_material);
g_teapot->DrawSubset(0);
// Draw Cube.
D3DXMatrixTranslation(&g_WorldMatrix, -2.0f, -2.0, 0.0f);
g_D3DDevice->SetTransform(D3DTS_WORLD, &g_WorldMatrix);
g_D3DDevice->SetMaterial(&g_material);
g_cube->DrawSubset(0);
// Draw Sphere.
D3DXMatrixTranslation(&g_WorldMatrix, 2.0f, 2.0, 0.0f);
g_D3DDevice->SetTransform(D3DTS_WORLD, &g_WorldMatrix);
g_D3DDevice->SetMaterial(&g_material);
g_sphere->DrawSubset(0);
// Draw Torus.
D3DXMatrixTranslation(&g_WorldMatrix, -2.0f, 2.0, 0.0f);
g_D3DDevice->SetTransform(D3DTS_WORLD, &g_WorldMatrix);
g_D3DDevice->SetMaterial(&g_material);
g_torus->DrawSubset(0);
// End the scene. Stop rendering.
g_D3DDevice->EndScene();
// Display the scene.
g_D3DDevice->Present(NULL, NULL, NULL, NULL);
}
void Shutdown()
{
// Release all resources.
if(g_D3DDevice != NULL) g_D3DDevice->Release();
if(g_D3D != NULL) g_D3D->Release();
if(g_teapot != NULL) { g_teapot->Release(); g_teapot = NULL; }
if(g_cube != NULL) { g_cube->Release(); g_cube = NULL; }
if(g_sphere != NULL) { g_sphere->Release(); g_sphere = NULL; }
if(g_torus != NULL) { g_torus->Release(); g_torus = NULL; }
}
