Flashcards in GraphicsCode Deck (14)
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1
Step One
Create Variables/Handles/Meshes/Etc
Create Variables/Handles/Meshes/Etc
IDirect3DDevice9* Device = 0;//declare interface
ID3DXMesh* Objects[3] = { 0,0,0 };//create an array of meshes)
D3DXMATRIX ObjectWorldMatrices[3];//create an array of matrices
HINSTANCE hinstance_app;//create a handle
bool red = true, clockwise = false, teapot = true;
int choice = 0; //location in array
int x = 1; //direction of rotation
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Step Two
Set up
In the Setup() function
Create the objects
example:
D3DXCreateTeapot(Device, Objects[0], 0);
Set object positions
example:
D3DXMatrixTranslation(&ObjectWorldMatrices[0], 0, 0, 0);
Set render state(so you can see the rotation)
Device->SetRenderState(D3DRS_FILLMODE, D3DFILL_WIREFRAME);
3
Step Three
Clean up
In the Cleanup() function
for (int i = 0; i (Objects[i]);
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Step Four
Display()
pass in timeDelta
bool Display(float timeDelta)
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Step Five
in the if(Device) statement
Variables
Create Local Variables (a lot of the variables you will need are in the starter)
D3DXVECTOR3 right(0, 0, 1); //x axis vector
D3DXMATRIX V, localRotate;
change the position variable to look like:
D3DXVECTOR3 position(0.0f, cameraHeight, -10.0f);
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Step Six
in the if(Device) statement
Clockwise
//clockwise is a bool variable - this is placed after the
// Device->SetTransform(D3DTS_VIEW, &V); statement
if (clockwise)
{
//computer pos for next frame
angle += 2 * timeDelta * x;
if (angle >= 6.28) // 2 * pi; 2 * 3.14159
angle = 0;
else if (angle
7
Step Seven
in the if(Device) statement
Counter Clockwise
//clockwise is a bool variable - this is placed after the
// Device->SetTransform(D3DTS_VIEW, &V); statement
if (counterclockwise)
{
//computer pos for next frame
angle += 2 * timeDelta * x;
if (angle >= 6.28) // 2 * pi; 2 * 3.14159
angle = 0;
else if (angle
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Step Eight
in the if(Device) statement
Set Colors
//the colors are bool variables
//placed after Device->BeginScene();
example:
if (red)
{
Device->SetMaterial(&d3d::RED_MTRL);
}
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Step Nine
in the if(Device) statement
Set the Local Object Matrices
Device->SetTransform(D3DTS_WORLD, &ObjLocalMatrices[choice]);
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Step Ten
in the if(Device) statement
Draw the objects
Objects[choice]->DrawSubset(0);
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Step Eleven
in the CALLBACK function
case WM_COMMAND:
{
switch (LOWORD(wParam))
{
case MENU_COLOR_RED:
red = true;
yellow = false, green = false, blue = false;
break;
case MENU_TEAPOT:
choice = 0;
break;
case MENU_CLOCKWISE:
clockwise = true, counterclockwise = false;
x=-1;
break;
default:
break;
}
}break;
12
Step Twelve
WINAPI
set show cursor to true
ShowCursor(true);
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Step Thirteen
Resource.rc
#include "resource.h"
MainMenu MENU DISCARDABLE
{
POPUP "&Color"
{
MENUITEM"&Red", MENU_COLOR_RED
MENUITEM"&Blue", MENU_COLOR_BLUE
}
}
follow the same format for shape and rotation
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