Animating Textures in DirectX 9

Graphics and GPU Programming Programming

Started by busytree September 17, 2006 06:50 PM

29 comments, last by busytree 17 years, 7 months ago

127

September 20, 2006 02:30 AM

Here's a copy-and-paste of my presentation parameters:

	memset(&m_d3dPresent, 0, sizeof(m_d3dPresent));	m_d3dPresent.BackBufferWidth			= m_nWidth;	m_d3dPresent.BackBufferHeight			= m_nHeight;	m_d3dPresent.BackBufferFormat			= (bWindowed) ? D3DFMT_UNKNOWN : D3DFMT_R5G6B5;	m_d3dPresent.BackBufferCount			= 1;	m_d3dPresent.MultiSampleType			= D3DMULTISAMPLE_NONE;	m_d3dPresent.MultiSampleQuality			= 0;	m_d3dPresent.SwapEffect					= D3DSWAPEFFECT_COPY;	m_d3dPresent.hDeviceWindow				= m_hWnd;	m_d3dPresent.Windowed					= bWindowed;	m_d3dPresent.EnableAutoDepthStencil		= true;	m_d3dPresent.AutoDepthStencilFormat = D3DFMT_D16;	m_d3dPresent.Flags						= D3DPRESENTFLAG_LOCKABLE_BACKBUFFER;	m_d3dPresent.FullScreen_RefreshRateInHz	= D3DPRESENT_RATE_DEFAULT;	m_d3dPresent.PresentationInterval		= (bVSync) ? D3DPRESENT_INTERVAL_DEFAULT : D3DPRESENT_INTERVAL_IMMEDIATE;

If its windowed then I do indeed use D3DFMT_UNKNOWN.

If you do what EasilyConfused said with D3DLoadTextureFromFileEx() you should be good with the colorkey.

Oh yeah! I know that we aren't using sprites but this should fix your problem:

Call D3DXCreateSprite() to create a sprite, then call Begin(D3DXSPRITE_ALPHABLEND) on your sprite after BeginScene(), and end it prior to EndScene(), that may help you out. It fixed my problem that I had with it.

Brandon

busytree

122

Author

September 20, 2006 03:45 PM

Ok I am going to try what you have told me and report my progress back here. :)

busytree

122

Author

September 20, 2006 04:29 PM

That is very interesting. I called the D3DXCreateSprite() and Begin(D3DXSPRITE_ALPHABLEND). Now my sprite has transparent background. Now is there a way to do this without involving D3DXSPRITE? Currently I am struggling with D3DXCreateTextureFromFileEx().

D3DXCreateTextureFromFileEx(pd3dDevice, "BOT.png", D3DX_DEFAULT, D3DX_DEFAULT, D3DX_DEFAULT, 0, D3DFMT_FROM_FILE, D3DPOOL_DEFAULT, D3DX_DEFAULT, D3DX_DEFAULT, 0xFF000000, NULL, NULL, &g_pTex );

Is there something horribly wrong what I did?

CHollman82

100

September 20, 2006 06:50 PM

Quote:Original post by busytree

I have another question Why is my background not square when vertices postion says it so?

*** Source Snippet Removed ***

Because your monitors aspect ratio is not 1:1. More than likely your aspect ratio is 4:3 (1024x768, 1600x1200 etc), 5:4 (1280x1024), or 16:9 (720x540, 1920x1080 ect), which will distort the screen accordingly.

codeXtremeif(you->intelligence < radish->intelligence) you->STFU();

busytree

122

Author

September 20, 2006 09:06 PM

I am tyring to find my other file, where I had the polygon a perfect square, and it showed on the screen as the perfect square. Could it be the setting of a camera?

busytree

122

Author

September 20, 2006 09:15 PM

How come when I render a cube with size 64 on all corners. How come it does not seem to be stretched?

reana1

277

September 21, 2006 07:24 AM

What size is your robot image?
Maybe it's stretching it to be a power of 2?
See default info on the size inputs: D3DXCreateTextureFromFileEx.
It may be something else though - I'm not good enough at this stuff yet to know without testing things in the code (and I'm not on Windows now).

Tadd- WarbleWare

busytree

122

Author

September 22, 2006 01:35 AM

my robot image is 46 X 64 and the wooden texture is 128x128. I think my robot should be 46x46 or 64x64? I want the collision to be very close to the actual picture too. The wooden texture is driving me mad.

Maddi

132

September 22, 2006 01:53 AM

On antoher note, you should not change your vertexbuffer to animate the texture but instead use "Texture Matrix Transforms". That should improve speed quite a bit when you have many sprites animated.

codingsolo

127

September 22, 2006 05:47 AM

Aaack! You need powers of 2 for your textures! 1,2,4,6,8,16,32,64,128,256,512,1024,etc

Your textures need to be in those dimensions or DirectX is going to scale up to the next power 2. e.g. a 256x257 image will turn into a 256x512 image after DirectX gets a hold of it. Modify the UVs of your quad to appropriately display the correct part of the texture.

Brandon

Animating Textures in DirectX 9

This topic is closed to new replies.

Popular Topics

Recommended Tutorials

Animating Textures in DirectX 9

This topic is closed to new replies.

Popular Topics

Recommended Tutorials

Reticulating splines