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add texture sampling

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This commit is contained in:
Zack Buhman 2025-12-31 18:42:36 -06:00
parent 96e0a3ab7b
commit 4d9e6d675d
4 changed files with 89 additions and 35 deletions
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97
main.cpp
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@ -18,12 +18,16 @@ ID3D10InputLayout * g_pVertexLayout = NULL;
ID3D10Buffer * g_pVertexBuffer = NULL;
ID3D10Buffer * g_pIndexBuffer = NULL;
ID3D10Texture2D * g_pTexture = NULL;
ID3D10ShaderResourceView * g_pTextureShaderResourceView = NULL;
ID3D10EffectMatrixVariable * g_pWorldVariable = NULL;
ID3D10EffectMatrixVariable * g_pViewVariable = NULL;
ID3D10EffectMatrixVariable * g_pProjectionVariable = NULL;
ID3D10EffectVectorVariable * g_pLightDirVariable = NULL;
ID3D10EffectVectorVariable * g_pLightColorVariable = NULL;
ID3D10EffectVectorVariable * g_pOutputColorVariable = NULL;
ID3D10EffectShaderResourceVariable * g_pDiffuseVariable = NULL;
D3DXMATRIX g_World1;
D3DXMATRIX g_World2;
D3DXMATRIX g_View;
@ -37,6 +41,7 @@ void Render();
struct SimpleVertex {
D3DXVECTOR3 Pos;
D3DXVECTOR3 Normal;
D3DXVECTOR2 Texture;
};
void print(LPCSTR fmt, ...)
@ -181,8 +186,7 @@ HRESULT InitDirect3DDevice()
hr = D3D10CreateDeviceAndSwapChain(NULL,
driverType,
NULL,
0,
//D3D10_CREATE_DEVICE_DEBUG,
D3D10_CREATE_DEVICE_DEBUG,
D3D10_SDK_VERSION,
&sd,
&g_pSwapChain,
@ -247,8 +251,43 @@ HRESULT InitDirect3DDevice()
vp.TopLeftY = 0;
g_pd3dDevice->RSSetViewports(1, &vp);
// effect
// texture
HRSRC hSeafloorRes = FindResource(NULL, L"RES_SEAFLOOR", RT_RCDATA);
if (hSeafloorRes == NULL) {
print("FindResource\n");
return -1;
}
DWORD dwSeafloorResSize = SizeofResource(NULL, hSeafloorRes);
HGLOBAL hSeafloorData = LoadResource(NULL, hSeafloorRes);
D3D10_SUBRESOURCE_DATA initSeafloorData;
initSeafloorData.pSysMem = LockResource(hSeafloorData);
initSeafloorData.SysMemPitch = 256 * 4;
D3D10_TEXTURE2D_DESC descTexture;
descTexture.Width = 256;
descTexture.Height = 256;
descTexture.MipLevels = 1;
descTexture.ArraySize = 1;
descTexture.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
descTexture.SampleDesc.Count = 1;
descTexture.SampleDesc.Quality = 0;
descTexture.Usage = D3D10_USAGE_DEFAULT;
descTexture.BindFlags = D3D10_BIND_SHADER_RESOURCE;
descTexture.CPUAccessFlags = 0;
descTexture.MiscFlags = 0;
hr = g_pd3dDevice->CreateTexture2D(&descTexture, &initSeafloorData, &g_pTexture);
if (FAILED(hr))
return hr;
D3D10_SHADER_RESOURCE_VIEW_DESC descSRV;
descSRV.Format = descTexture.Format;
descSRV.ViewDimension = D3D10_SRV_DIMENSION_TEXTURE2D;
descSRV.Texture2D.MostDetailedMip = 0;
descSRV.Texture2D.MipLevels = 1;
hr = g_pd3dDevice->CreateShaderResourceView(g_pTexture, &descSRV, &g_pTextureShaderResourceView);
if (FAILED(hr))
return hr;
// effect
HRSRC hRes = FindResource(NULL, L"RES_MAIN_FXO", RT_RCDATA);
if (hRes == NULL) {
print("FindResource\n");
@ -273,18 +312,19 @@ HRESULT InitDirect3DDevice()
g_pTechniqueRenderLight = g_pEffect->GetTechniqueByName("RenderLight");
// variables
g_pWorldVariable = g_pEffect->GetVariableByName("World")->AsMatrix();
g_pViewVariable = g_pEffect->GetVariableByName("View")->AsMatrix();
g_pProjectionVariable = g_pEffect->GetVariableByName("Projection")->AsMatrix();
g_pLightDirVariable = g_pEffect->GetVariableByName("vLightDir")->AsVector();
g_pLightColorVariable = g_pEffect->GetVariableByName("vLightColor")->AsVector();
g_pOutputColorVariable = g_pEffect->GetVariableByName("vOutputColor")->AsVector();
g_pDiffuseVariable = g_pEffect->GetVariableByName("txDiffuse")->AsShaderResource();
// input layout
D3D10_INPUT_ELEMENT_DESC layout[] = {
{"POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0 , D3D10_INPUT_PER_VERTEX_DATA, 0},
{"NORMAL" , 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 12, D3D10_INPUT_PER_VERTEX_DATA, 0},
{"TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 24, D3D10_INPUT_PER_VERTEX_DATA, 0},
};
UINT numElements = (sizeof (layout)) / (sizeof (layout[0]));
@ -309,35 +349,35 @@ HRESULT InitDirect3DDevice()
// vertex buffer
SimpleVertex vertices[] = {
{ D3DXVECTOR3(-1.0f, 1.0f, -1.0f), D3DXVECTOR3( 0.0f, 1.0f, 0.0f) },
{ D3DXVECTOR3( 1.0f, 1.0f, -1.0f), D3DXVECTOR3( 0.0f, 1.0f, 0.0f) },
{ D3DXVECTOR3( 1.0f, 1.0f, 1.0f), D3DXVECTOR3( 0.0f, 1.0f, 0.0f) },
{ D3DXVECTOR3(-1.0f, 1.0f, 1.0f), D3DXVECTOR3( 0.0f, 1.0f, 0.0f) },
{ D3DXVECTOR3(-1.0f, 1.0f, -1.0f), D3DXVECTOR3( 0.0f, 1.0f, 0.0f), D3DXVECTOR2(0.0f, 0.0f) },
{ D3DXVECTOR3( 1.0f, 1.0f, -1.0f), D3DXVECTOR3( 0.0f, 1.0f, 0.0f), D3DXVECTOR2(1.0f, 0.0f) },
{ D3DXVECTOR3( 1.0f, 1.0f, 1.0f), D3DXVECTOR3( 0.0f, 1.0f, 0.0f), D3DXVECTOR2(1.0f, 1.0f) },
{ D3DXVECTOR3(-1.0f, 1.0f, 1.0f), D3DXVECTOR3( 0.0f, 1.0f, 0.0f), D3DXVECTOR2(0.0f, 1.0f) },
{ D3DXVECTOR3(-1.0f, -1.0f, -1.0f), D3DXVECTOR3( 0.0f, -1.0f, 0.0f) },
{ D3DXVECTOR3( 1.0f, -1.0f, -1.0f), D3DXVECTOR3( 0.0f, -1.0f, 0.0f) },
{ D3DXVECTOR3( 1.0f, -1.0f, 1.0f), D3DXVECTOR3( 0.0f, -1.0f, 0.0f) },
{ D3DXVECTOR3(-1.0f, -1.0f, 1.0f), D3DXVECTOR3( 0.0f, -1.0f, 0.0f) },
{ D3DXVECTOR3(-1.0f, -1.0f, -1.0f), D3DXVECTOR3( 0.0f, -1.0f, 0.0f), D3DXVECTOR2(0.0f, 0.0f) },
{ D3DXVECTOR3( 1.0f, -1.0f, -1.0f), D3DXVECTOR3( 0.0f, -1.0f, 0.0f), D3DXVECTOR2(1.0f, 0.0f) },
{ D3DXVECTOR3( 1.0f, -1.0f, 1.0f), D3DXVECTOR3( 0.0f, -1.0f, 0.0f), D3DXVECTOR2(1.0f, 1.0f) },
{ D3DXVECTOR3(-1.0f, -1.0f, 1.0f), D3DXVECTOR3( 0.0f, -1.0f, 0.0f), D3DXVECTOR2(0.0f, 1.0f) },
{ D3DXVECTOR3(-1.0f, -1.0f, 1.0f), D3DXVECTOR3(-1.0f, 0.0f, 0.0f) },
{ D3DXVECTOR3(-1.0f, -1.0f, -1.0f), D3DXVECTOR3(-1.0f, 0.0f, 0.0f) },
{ D3DXVECTOR3(-1.0f, 1.0f, -1.0f), D3DXVECTOR3(-1.0f, 0.0f, 0.0f) },
{ D3DXVECTOR3(-1.0f, 1.0f, 1.0f), D3DXVECTOR3(-1.0f, 0.0f, 0.0f) },
{ D3DXVECTOR3(-1.0f, -1.0f, 1.0f), D3DXVECTOR3(-1.0f, 0.0f, 0.0f), D3DXVECTOR2(0.0f, 0.0f) },
{ D3DXVECTOR3(-1.0f, -1.0f, -1.0f), D3DXVECTOR3(-1.0f, 0.0f, 0.0f), D3DXVECTOR2(1.0f, 0.0f) },
{ D3DXVECTOR3(-1.0f, 1.0f, -1.0f), D3DXVECTOR3(-1.0f, 0.0f, 0.0f), D3DXVECTOR2(1.0f, 1.0f) },
{ D3DXVECTOR3(-1.0f, 1.0f, 1.0f), D3DXVECTOR3(-1.0f, 0.0f, 0.0f), D3DXVECTOR2(0.0f, 1.0f) },
{ D3DXVECTOR3( 1.0f, -1.0f, 1.0f), D3DXVECTOR3( 1.0f, 0.0f, 0.0f) },
{ D3DXVECTOR3( 1.0f, -1.0f, -1.0f), D3DXVECTOR3( 1.0f, 0.0f, 0.0f) },
{ D3DXVECTOR3( 1.0f, 1.0f, -1.0f), D3DXVECTOR3( 1.0f, 0.0f, 0.0f) },
{ D3DXVECTOR3( 1.0f, 1.0f, 1.0f), D3DXVECTOR3( 1.0f, 0.0f, 0.0f) },
{ D3DXVECTOR3( 1.0f, -1.0f, 1.0f), D3DXVECTOR3( 1.0f, 0.0f, 0.0f), D3DXVECTOR2(0.0f, 0.0f) },
{ D3DXVECTOR3( 1.0f, -1.0f, -1.0f), D3DXVECTOR3( 1.0f, 0.0f, 0.0f), D3DXVECTOR2(1.0f, 0.0f) },
{ D3DXVECTOR3( 1.0f, 1.0f, -1.0f), D3DXVECTOR3( 1.0f, 0.0f, 0.0f), D3DXVECTOR2(1.0f, 1.0f) },
{ D3DXVECTOR3( 1.0f, 1.0f, 1.0f), D3DXVECTOR3( 1.0f, 0.0f, 0.0f), D3DXVECTOR2(0.0f, 1.0f) },
{ D3DXVECTOR3(-1.0f, -1.0f, -1.0f), D3DXVECTOR3( 0.0f, 0.0f, -1.0f) },
{ D3DXVECTOR3( 1.0f, -1.0f, -1.0f), D3DXVECTOR3( 0.0f, 0.0f, -1.0f) },
{ D3DXVECTOR3( 1.0f, 1.0f, -1.0f), D3DXVECTOR3( 0.0f, 0.0f, -1.0f) },
{ D3DXVECTOR3(-1.0f, 1.0f, -1.0f), D3DXVECTOR3( 0.0f, 0.0f, -1.0f) },
{ D3DXVECTOR3(-1.0f, -1.0f, -1.0f), D3DXVECTOR3( 0.0f, 0.0f, -1.0f), D3DXVECTOR2(0.0f, 0.0f) },
{ D3DXVECTOR3( 1.0f, -1.0f, -1.0f), D3DXVECTOR3( 0.0f, 0.0f, -1.0f), D3DXVECTOR2(1.0f, 0.0f) },
{ D3DXVECTOR3( 1.0f, 1.0f, -1.0f), D3DXVECTOR3( 0.0f, 0.0f, -1.0f), D3DXVECTOR2(1.0f, 1.0f) },
{ D3DXVECTOR3(-1.0f, 1.0f, -1.0f), D3DXVECTOR3( 0.0f, 0.0f, -1.0f), D3DXVECTOR2(0.0f, 1.0f) },
{ D3DXVECTOR3(-1.0f, -1.0f, 1.0f), D3DXVECTOR3( 0.0f, 0.0f, 1.0f) },
{ D3DXVECTOR3( 1.0f, -1.0f, 1.0f), D3DXVECTOR3( 0.0f, 0.0f, 1.0f) },
{ D3DXVECTOR3( 1.0f, 1.0f, 1.0f), D3DXVECTOR3( 0.0f, 0.0f, 1.0f) },
{ D3DXVECTOR3(-1.0f, 1.0f, 1.0f), D3DXVECTOR3( 0.0f, 0.0f, 1.0f) },
{ D3DXVECTOR3(-1.0f, -1.0f, 1.0f), D3DXVECTOR3( 0.0f, 0.0f, 1.0f), D3DXVECTOR2(0.0f, 0.0f) },
{ D3DXVECTOR3( 1.0f, -1.0f, 1.0f), D3DXVECTOR3( 0.0f, 0.0f, 1.0f), D3DXVECTOR2(1.0f, 0.0f) },
{ D3DXVECTOR3( 1.0f, 1.0f, 1.0f), D3DXVECTOR3( 0.0f, 0.0f, 1.0f), D3DXVECTOR2(1.0f, 1.0f) },
{ D3DXVECTOR3(-1.0f, 1.0f, 1.0f), D3DXVECTOR3( 0.0f, 0.0f, 1.0f), D3DXVECTOR2(0.0f, 1.0f) },
};
int vertices_length = (sizeof (vertices)) / (sizeof (vertices[0]));
bd.Usage = D3D10_USAGE_DEFAULT;
@ -456,6 +496,7 @@ void Render()
g_pViewVariable->SetMatrix((float *)&g_View);
g_pProjectionVariable->SetMatrix((float *)&g_Projection);
g_pWorldVariable->SetMatrix((float *)&g_World1);
g_pDiffuseVariable->SetResource(g_pTextureShaderResourceView);
// lights
g_pLightDirVariable->SetFloatVectorArray((float *)vLightDirs, 0, 2);

23
main.fx
View File

@ -6,16 +6,25 @@ float4 vLightDir[2];
float4 vLightColor[2];
float4 vOutputColor;
Texture2D txDiffuse;
SamplerState samLinear {
Filter = MIN_MAG_MIP_LINEAR;
AddressU = Wrap;
AddressV = Wrap;
};
struct VS_INPUT
{
float4 Pos : POSITION;
float4 Normal : NORMAL;
float3 Normal : NORMAL;
float2 Tex : TEXCOORD;
};
struct PS_INPUT
{
float4 Pos : SV_POSITION;
float4 Normal : TEXCOORD0;
float3 Normal : TEXCOORD0;
float2 Tex : TEXCOORD1;
};
PS_INPUT VS(VS_INPUT input)
@ -25,19 +34,21 @@ PS_INPUT VS(VS_INPUT input)
output.Pos = mul(output.Pos, View);
output.Pos = mul(output.Pos, Projection);
output.Normal = mul(input.Normal, World);
output.Tex = input.Tex;
return output;
}
float4 PS(PS_INPUT input) : SV_Target
{
float4 finalColor = 0;
float4 texColor = txDiffuse.Sample(samLinear, input.Tex);
float4 intensityColor = 0;
for (int i = 0; i < 2; i++) {
finalColor += saturate(dot((float3)vLightDir[i], input.Normal) * vLightColor[i]);
intensityColor += saturate(dot((float3)vLightDir[i], input.Normal) * vLightColor[i]);
}
finalColor.a = 1;
intensityColor.a = 1;
return finalColor;
return texColor * intensityColor;
}
float4 PSSolid(PS_INPUT input) : SV_Target

1
main.rc
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@ -1 +1,2 @@
RES_MAIN_FXO RCDATA "main.fxo"
RES_SEAFLOOR RCDATA "seafloor.data"

1
seafloor.data Normal file
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