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Back to Graphics and GPU Programming

DirectX11 Texture Issue, not applying correctly?

Started by
3 comments, last by Tim Lawton 11 years, 5 months ago
Hey there,

I've recently started texturing 3d objects in DirectX11 using C++, although I've come across a very strange issue no one seems to no one whats wrong with it. I was hoping I could find some experienced programmers who could shine some light on this issue.

I'm trying to apply a simple texture to a cube

How it should look:
http://img849.imageshack.us/img849/2413/92196367.png


How it looks:
http://img26.imageshack.us/img26/3387/directx11textureglitch.png

As you can see it's kinda fuzzy? I'm not sure how to explain it, but I have no idea why it's happening...

Object.cpp

#include "Object.h"
Object::Object()
{
}
Object::~Object()
{
}
void Object::Render(ID3D11DeviceContext * pImmediateContext)
{
/* VARIABLES */
//Load Constant Buffer Struct
CBUFFER cBuffer;
//Setup HLSL lighting
cBuffer.LightVector = D3DXVECTOR4(1.0f, 1.0f, 1.0f, 0.0f);
cBuffer.LightColor = D3DXCOLOR(0.5f, 0.5f, 0.5f, 1.0f);
cBuffer.AmbientColor = D3DXCOLOR(0.2f, 0.2f, 0.2f, 1.0f);
//simple animation
static float Time = 0.0f;
Time += 0.0001f;
D3DXMatrixRotationY(&matRotate, Time);
/* SETUP MATRIX */
//Create the view matrix
D3DXMatrixLookAtLH(&matView,
&D3DXVECTOR3(0.0f, 3.0f, 5.0f), //Camera position
&D3DXVECTOR3(0.0f, 0.0f, 0.0f), //the look-at position
&D3DXVECTOR3(0.0f, 1.0f, 0.0f) //the up direction
);
//Create the projection matrix
D3DXMatrixPerspectiveFovLH(&matProjection,
(FLOAT)D3DXToRadian(45), //Field of View
(FLOAT)1280 / (FLOAT)720, //aspect ratio
1.0f, //near view-plane
100.0f); //far view-plane
cBuffer.Final = matRotate * matView * matProjection;
cBuffer.Rotation = matRotate;
//Setup the Sampler State
/*
static int i = 0; i++; if(i > 30000) i = 0;
if(i > 10000)
pImmediateContext->PSSetSamplers(0, 1, &g_pSamplerState[0]);
else if (i > 10000 && i < 20000)
pImmediateContext->PSSetSamplers(0, 1, &g_pSamplerState[1]);
else
pImmediateContext->PSSetSamplers(0, 1, &g_pSamplerState[2]);
*/
// select which vertex buffer to display
UINT stride = sizeof(VERTEX);
UINT offset = 0;
pImmediateContext->IASetVertexBuffers(0, 1, &g_pVertexBuffer, &stride, &offset);
pImmediateContext->IASetIndexBuffer(g_pIBuffer, DXGI_FORMAT_R32_UINT, 0);
// select which primtive type we are using
pImmediateContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
//Load in Shaders
pImmediateContext->VSSetShader( g_pVertexShader, 0, 0 );
pImmediateContext->PSSetShader( g_pPixelShader, 0, 0 );

/* CUBE 1 */
//Create the rotation matrix, spin on the Y axis at 0.001f per frame
//D3DXMatrixRotationY(&matRotate, Time);
//Move the shape
//D3DXMatrixTranslation(&matTranslate, 5.0f, 2.0f, 0.0f);
//Create the final transform
//cBuffer.Final = matRotate * matTranslate * matView * matProjection;
//cBuffer.Rotation = matRotate;
//Draw
pImmediateContext->UpdateSubresource(g_pCBuffer, 0, 0, &cBuffer, 0, 0);
pImmediateContext->PSSetShaderResources(0, 1, &woodTexture); //add texture
pImmediateContext->DrawIndexed(36, 0, 0);
/* CUBE 2 */
/*
//Create the rotation matrix, spin on the Y axis at 0.001f per frame
//D3DXMatrixRotationX(&matRotate, Time);
//Move the shape
D3DXMatrixTranslation(&matTranslate, -5.0f, 2.0f, 0.0f);
//Create the final transform
cBuffer.Final = matRotate * matTranslate * matView * matProjection;
cBuffer.Rotation = matRotate;
//Draw
pImmediateContext->UpdateSubresource(g_pCBuffer, 0, 0, &cBuffer, 0, 0);
pImmediateContext->PSSetShaderResources(0, 1, &brickTexture); //add texture
pImmediateContext->DrawIndexed(36, 0, 0);
*/
}
void Object::InitGraphics(ID3D11Device * device, ID3D11DeviceContext * pImmediateContext)
{
//CUBE
VERTEX OurVertices[] =
{
{-1.0f, -1.0f, 1.0f, D3DXVECTOR3(0.0f, 0.0f, 1.0f), 0.0f, 0.0f}, // side 1
{1.0f, -1.0f, 1.0f, D3DXVECTOR3(0.0f, 0.0f, 1.0f), 0.0f, 1.0f},
{-1.0f, 1.0f, 1.0f, D3DXVECTOR3(0.0f, 0.0f, 1.0f), 1.0f, 0.0f},
{1.0f, 1.0f, 1.0f, D3DXVECTOR3(0.0f, 0.0f, 1.0f), 1.0f, 1.0f},
{-1.0f, -1.0f, -1.0f, D3DXVECTOR3(0.0f, 0.0f, -1.0f), 0.0f, 0.0f}, // side 2
{-1.0f, 1.0f, -1.0f, D3DXVECTOR3(0.0f, 0.0f, -1.0f), 0.0f, 1.0f},
{1.0f, -1.0f, -1.0f, D3DXVECTOR3(0.0f, 0.0f, -1.0f), 1.0f, 0.0f},
{1.0f, 1.0f, -1.0f, D3DXVECTOR3(0.0f, 0.0f, -1.0f), 1.0f, 1.0f},
{-1.0f, 1.0f, -1.0f, D3DXVECTOR3(0.0f, 1.0f, 0.0f), 0.0f, 0.0f}, // side 3
{-1.0f, 1.0f, 1.0f, D3DXVECTOR3(0.0f, 1.0f, 0.0f), 0.0f, 1.0f},
{1.0f, 1.0f, -1.0f, D3DXVECTOR3(0.0f, 1.0f, 0.0f), 1.0f, 0.0f},
{1.0f, 1.0f, 1.0f, D3DXVECTOR3(0.0f, 1.0f, 0.0f), 1.0f, 1.0f},
{-1.0f, -1.0f, -1.0f, D3DXVECTOR3(0.0f, -1.0f, 0.0f), 0.0f, 0.0f}, // side 4
{1.0f, -1.0f, -1.0f, D3DXVECTOR3(0.0f, -1.0f, 0.0f), 0.0f, 1.0f},
{-1.0f, -1.0f, 1.0f, D3DXVECTOR3(0.0f, -1.0f, 0.0f), 1.0f, 0.0f},
{1.0f, -1.0f, 1.0f, D3DXVECTOR3(0.0f, -1.0f, 0.0f), 1.0f, 1.0f},
{1.0f, -1.0f, -1.0f, D3DXVECTOR3(1.0f, 0.0f, 0.0f), 0.0f, 0.0f}, // side 5
{1.0f, 1.0f, -1.0f, D3DXVECTOR3(1.0f, 0.0f, 0.0f), 0.0f, 1.0f},
{1.0f, -1.0f, 1.0f, D3DXVECTOR3(1.0f, 0.0f, 0.0f), 1.0f, 0.0f},
{1.0f, 1.0f, 1.0f, D3DXVECTOR3(1.0f, 0.0f, 0.0f), 1.0f, 1.0f},
{-1.0f, -1.0f, -1.0f, D3DXVECTOR3(-1.0f, 0.0f, 0.0f), 0.0f, 0.0f}, // side 6
{-1.0f, -1.0f, 1.0f, D3DXVECTOR3(-1.0f, 0.0f, 0.0f), 0.0f, 1.0f},
{-1.0f, 1.0f, -1.0f, D3DXVECTOR3(-1.0f, 0.0f, 0.0f), 1.0f, 0.0f},
{-1.0f, 1.0f, 1.0f, D3DXVECTOR3(-1.0f, 0.0f, 0.0f), 1.0f, 1.0f},
};
// create the vertex buffer
D3D11_BUFFER_DESC bd;
ZeroMemory(&bd, sizeof(bd));
bd.Usage = D3D11_USAGE_DYNAMIC; // write access access by CPU and GPU
bd.ByteWidth = sizeof(VERTEX) * 24; // size is the VERTEX struct
bd.BindFlags = D3D11_BIND_VERTEX_BUFFER; // use as a vertex buffer
bd.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE; // allow CPU to write in buffer
device->CreateBuffer(&bd, NULL, &g_pVertexBuffer); // create the buffer
// copy the vertices into the buffer
D3D11_MAPPED_SUBRESOURCE ms;
pImmediateContext->Map(g_pVertexBuffer, NULL, D3D11_MAP_WRITE_DISCARD, NULL, &ms); // map the buffer
memcpy(ms.pData, OurVertices, sizeof(OurVertices)); // copy the data
pImmediateContext->Unmap(g_pVertexBuffer, NULL); // unmap the buffer
//Create the index buffer out of DWORD
DWORD OurIndices[] =
{
0, 1, 2, // side 1
2, 1, 3,
4, 5, 6, // side 2
6, 5, 7,
8, 9, 10, // side 3
10, 9, 11,
12, 13, 14, // side 4
14, 13, 15,
16, 17, 18, // side 5
18, 17, 19,
20, 21, 22, // side 6
22, 21, 23,
};
// create the index buffer
bd.Usage = D3D11_USAGE_DYNAMIC;
bd.ByteWidth = sizeof(DWORD) * 36;
bd.BindFlags = D3D11_BIND_INDEX_BUFFER;
bd.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
bd.MiscFlags = 0;
device->CreateBuffer(&bd, NULL, &g_pIBuffer);
pImmediateContext->Map(g_pIBuffer, NULL, D3D11_MAP_WRITE_DISCARD, NULL, &ms); // map the buffer
memcpy(ms.pData, OurIndices, sizeof(OurIndices)); // copy the data
pImmediateContext->Unmap(g_pIBuffer, NULL);
//Load wood texture
D3DX11CreateShaderResourceViewFromFile(device, //Direct3D Device
L"Wood.png", //Load wood.png
NULL, //no additional information
NULL, //no multithreading
&woodTexture, //Address of the shader-resource-view
NULL); //no multithreading
//Load brick texture
D3DX11CreateShaderResourceViewFromFile(device, //Direct3D Device
L"Bricks.png", //Load bricks.png
NULL, //no additional information
NULL, //no multithreading
&brickTexture, //Address of the shader-resource-view
NULL); //no multithreading
}

HRESULT Object::InitObject(ID3D11Device * device, ID3D11DeviceContext * pImmediateContext)
{
HRESULT hr = S_OK;

//------------------
// VERTEX SHADER
//------------------
// Compile the vertex shader
ID3D10Blob* pVSBlob = NULL;
hr = D3DX11CompileFromFile(L"Shader.fx", 0, 0, "VShader", "vs_5_0", 0, 0, 0, &pVSBlob, 0, 0);

//Error Handling
if( FAILED( hr ) )
{
MessageBox( NULL,
L"The FX file cannot be compiled. Please run this executable from the directory that contains the FX file.", L"Error", MB_OK );
return hr;
}

// Create the vertex shader
hr = device->CreateVertexShader( pVSBlob->GetBufferPointer(), pVSBlob->GetBufferSize(), NULL, &g_pVertexShader );
if( FAILED( hr ) )
{
pVSBlob->Release();
return hr;
}
//------------------
// PIXEL SHADER
//------------------
// Compile the pixel shader
ID3D10Blob* pPSBlob = NULL;
D3DX11CompileFromFile(L"Shader.fx", 0, 0, "PShader", "ps_5_0", 0, 0, 0, &pPSBlob, 0, 0);
//Error handling
if( FAILED( hr ) )
{
MessageBox( NULL,
L"The FX file cannot be compiled. Please run this executable from the directory that contains the FX file.", L"Error", MB_OK );
return hr;
}
// Create the pixel shader
hr = device->CreatePixelShader( pPSBlob->GetBufferPointer(), pPSBlob->GetBufferSize(), NULL, &g_pPixelShader );
pPSBlob->Release();
if( FAILED( hr ) )
return hr;
//------------------
// LOAD SHADERS
//------------------
//Allows the Shader to return a struct of values
D3D11_INPUT_ELEMENT_DESC layout[] =
{
{"POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0}, //Allows Pixel shader to take in positions
{"NORMAL", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 12, D3D11_INPUT_PER_VERTEX_DATA, 0}, //Allows Pixel shader to take in normals
{"TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 24, D3D11_INPUT_PER_VERTEX_DATA, 0}, //Allows pixel shader to take in textures
};
UINT numElements = ARRAYSIZE( layout ); //Count number of elements in array
// Create the input layout
hr = device->CreateInputLayout( layout, numElements, pVSBlob->GetBufferPointer(),
pVSBlob->GetBufferSize(), &g_pVertexLayout );
pVSBlob->Release();
if( FAILED( hr ) )
return hr;
// Set the input layout
pImmediateContext->IASetInputLayout( g_pVertexLayout );
//------------------
// CONSTANT BUFFER
//------------------
D3D11_BUFFER_DESC bd;
ZeroMemory( &bd, sizeof(bd) );
bd.Usage = D3D11_USAGE_DEFAULT;
bd.ByteWidth = 176;
bd.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
//Create Constant Buffer
device->CreateBuffer(&bd, NULL, &g_pCBuffer);
//Setup Constant Buffer
pImmediateContext->VSSetConstantBuffers(0, 1, &g_pCBuffer);
return hr;
}

void Object::InitStates(ID3D11Device * device)
{
//Rasiterzer
D3D11_RASTERIZER_DESC rd;
rd.FillMode = D3D11_FILL_SOLID;
rd.CullMode = D3D11_CULL_BACK;
rd.FrontCounterClockwise = FALSE;
rd.DepthClipEnable = TRUE;
rd.ScissorEnable = FALSE;
rd.AntialiasedLineEnable = FALSE;
rd.MultisampleEnable = FALSE;
rd.DepthBias = 0;
rd.DepthBiasClamp = 0.0f;
rd.SlopeScaledDepthBias = 0.0f;
device->CreateRasterizerState(&rd, &g_pRSDefault);
//Sampler
D3D11_SAMPLER_DESC sd;
sd.Filter = D3D11_FILTER_MIN_MAG_MIP_LINEAR;
sd.MaxAnisotropy = 16;
sd.AddressU = D3D11_TEXTURE_ADDRESS_WRAP;
sd.AddressV = D3D11_TEXTURE_ADDRESS_WRAP;
sd.AddressW = D3D11_TEXTURE_ADDRESS_WRAP;
sd.ComparisonFunc = D3D11_COMPARISON_ALWAYS;
sd.BorderColor[0] = 0.0f;
sd.BorderColor[1] = 0.0f;
sd.BorderColor[2] = 0.0f;
sd.BorderColor[3] = 0.0f;
sd.MinLOD = 0.0f;
sd.MaxLOD = D3D11_FLOAT32_MAX;
sd.MipLODBias = 0.0f;
device->CreateSamplerState(&sd, &g_pSamplerState[0]);
sd.Filter = D3D11_FILTER_ANISOTROPIC;
device->CreateSamplerState(&sd, &g_pSamplerState[1]);
sd.Filter = D3D11_FILTER_MIN_MAG_MIP_LINEAR;
sd.MinLOD = 5.0f;
device->CreateSamplerState(&sd, &g_pSamplerState[2]);
}

void Object::CleanupObject()
{
//Close and release all existing COM Objects
if( g_pVertexBuffer ) g_pVertexBuffer->Release();
if( g_pVertexLayout ) g_pVertexLayout->Release();
if( g_pVertexShader ) g_pVertexShader->Release();
if( g_pPixelShader ) g_pPixelShader->Release();
if( g_pCBuffer ) g_pCBuffer->Release();
if( g_pIBuffer ) g_pIBuffer->Release();
if( woodTexture ) woodTexture->Release();
if( brickTexture ) brickTexture->Release();
}


shader.fx

//Created by Tim Lawton 2012
//--------------------------------------------------------------------------------------
// Vertex Shader
//--------------------------------------------------------------------------------------
//Constant Buffer
cbuffer ConstantBuffer
{
float4x4 final; //4x4 matrix which holds the final value
float4x4 rotation; //rotation matrix
float4 lightvec; //Light's Vector
float4 lightcol; //light's colour
float4 ambientcol; //Ambient light's colour
}
Texture2D Texture;
SamplerState ss;
//Struct to return two values
struct VOut
{
float4 color : COLOR;
float2 texcoord : TEXCOORD;
float4 position : SV_POSITION;
};

VOut VShader(float4 position : POSITION, float4 normal : NORMAL, float2 texcoord : TEXCOORD)
{
VOut output;
output.position = mul(final, position);
// set the ambient light
output.color = ambientcol;
// calculate the diffuse light and add it to the ambient light
float4 norm = normalize(mul(rotation, normal));
float diffusebrightness = saturate(dot(norm, lightvec));
output.color += lightcol * diffusebrightness;
//Set texture coordinates
output.texcoord = texcoord;
return output;
}
//--------------------------------------------------------------------------------------
// Pixel Shader
//--------------------------------------------------------------------------------------
float4 PShader(float4 color : COLOR, float2 texcoord : TEXCOORD) : SV_TARGET
{
return color * Texture.Sample(ss, texcoord);
}



Any help would be greatly appreciated
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Have you checked your vertex buffer with PIX. The problem may be related to the texture coordinates and PIX will show you if the buffer contains correct values.
Have you enabled your debug runtime? It should show some error message if there is a problem.

I think that the obvious problem with the code is that the output of the vertex shader doesn't match the input of the pixel shader. You should use the VOut as input parameter to the pixel shader to prevent such a mismatch.

Cheers!
I know what you're saying, but I'm not 100% sure on the syntax, could you show me please?
Something like this:

float4 PShader(in VOut Input) : SV_TARGET
{
return Input.color * Texture.Sample(ss, Input.texcoord);
}

Cheers!
lol Ive fixed it. turns out I was still using

D3DXCOLOR in my VERTEX Struct, instead of D3DXVECTOR3 for my Normal...

sigh..

This topic is closed to new replies.

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