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Blurry Textures

Started by suckxez Jan 17, 2007 at 9:17 AM 5 replies 700+ views

Original Post

Jan 17, 2007 at 9:17 AM

Hi! I wonder why my textures are that extremely blurry even when the cam isn't that far away from them. Take a look at it: http://home.arcor.de/suckxez/blurry.jpg I use these settings: float aspect = (float)800 / (float)600; D3DXMatrixPerspectiveFovLH( &projection, D3DX_PI / 4, aspect, 1.0f, 1000.0f ); AutoDepthStencilFormat = D3DFMT_D24S8 Another question: What's to do when you have a sprite which dimensions have not the power of 2? For example: I've got a 200x400 sprite, do I have to use a 400x400 texture? :/

Namethatnobodyelsetook

Jan 17, 2007 at 9:24 AM

Are your textures pow2 size to start with? If not, they'll become blurry at load.
Are you drawing them appropriately? If not, they'll become blurry (or more blury) at draw time.

Recent blurry answer.

suckxez

Jan 17, 2007 at 9:30 AM

yes, the textures are a power of 2 size

I'm drawing them like that:


if( FAILED(D3DXCreateTextureFromFileEx(Woah_System::GetInterface()->m_pGraphics.GetDevice(), filename, D3DX_DEFAULT, D3DX_DEFAULT, D3DX_DEFAULT,
		0, D3DFMT_A4R4G4B4, D3DPOOL_MANAGED, D3DX_FILTER_TRIANGLE | D3DX_FILTER_MIRROR, D3DX_FILTER_TRIANGLE | D3DX_FILTER_MIRROR,
		0xff000000, NULL, NULL, &pTexture)))
		exit(1);

	float w = width;
	float h = height;

	TVertex v[] =
	{	//x			y	z		color		r	g		b		u		v
		{-1.0f, 0.0f, fZPos, D3DCOLOR_XRGB( 255, 255, 255 ),	0.0f, 0.0f},// 0    
		{0.0f,  0.0f, fZPos, D3DCOLOR_XRGB( 255, 255, 255 ),	1.0f, 0.0f},// 1    
		{ -1.0f, -1.0f, fZPos, D3DCOLOR_XRGB( 255, 255, 255 ),	0.0f, 1.0f},// 2    
		{ 0.0f,  -1.0f, fZPos, D3DCOLOR_XRGB( 255, 255, 255 ),	1.0f, 1.0f}// 3    
	}; 

	USHORT g_Indices[] = { 0, 1, 2, 1, 3, 2 };

	pVertexBuf.CreateBuffer(Woah_System::GetInterface()->m_pGraphics.GetDevice(), 4, D3DFVF_XYZ | D3DFVF_DIFFUSE | D3DFVF_TEX1, sizeof( TVertex ), 0 );
    pVertexBuf.SetData( 4, v , 0);
	pIndexBuf.CreateBuffer( Woah_System::GetInterface()->m_pGraphics.GetDevice(), 6, D3DFMT_INDEX16 );
    pIndexBuf.SetData( 6, g_Indices, 0);
	pVertexBuf.SetIndexBuffer( &pIndexBuf );

/*	D3DXMATRIX identity;
    D3DXMatrixIdentity( &identity );
    Woah_System::GetInterface()->m_pGraphics.GetDevice()->SetTransform( D3DTS_WORLD, &identity );
    Woah_System::GetInterface()->m_pGraphics.GetDevice()->SetTransform( D3DTS_VIEW, &identity );
	*/
}

void Woah_Sprite::Render(float xpos, float ypos, float zpos, double angle)
{
	Woah_System::GetInterface()->m_pGraphics.GetDevice()->SetTexture(0, pTexture);
	//D3DXMatrixRotationYawPitchRoll( &m_matRotate,  0,  0,  angle); 
	D3DXMatrixTranslation( &m_matTranslate, xpos, ypos, zpos );
	D3DXMatrixRotationZ( &m_matRotate,  angle); //degree *(D3DX_PI/180)
	Woah_System::GetInterface()->m_pGraphics.GetDevice()->SetTransform(D3DTS_WORLD, &(m_matRotate * m_matTranslate)); 

	pVertexBuf.Render(Woah_System::GetInterface()->m_pGraphics.GetDevice(), 2, D3DPT_TRIANGLELIST);
}

suckxez

Jan 17, 2007 at 1:58 PM

Ok, I've found out that texture are only blurry in windowed mode. They seem to be pretty clear in fullscreen mode. Idea anyone?

PinguinDude

Jan 17, 2007 at 2:05 PM

Your window in the screenshot is larger than 800x600, so directx will most likely resize your rendered image to fit the window's size.

suckxez

Jan 17, 2007 at 2:10 PM

Quote:
Original post by PinguinDude
Your window in the screenshot is larger than 800x600, so directx will most likely resize your rendered image to fit the window's size.

That doesnt matter. It's even blurry when it's 800x600

TheAdmiral

Jan 18, 2007 at 10:25 AM

Quote:
Original post by suckxez
It's even blurry when it's 800x600

Are those the dimensions of the window, the client RECT or the back-buffer?
Show us the code you use to create the IDirect3DDevice9. It's possible that your back-buffer is a different size to the render area.

Admiral

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