Question

所以我已将MRT添加到我的程序中。

问题：我的两个纹理（normalMap和positionMap）是空的（只用clearcolor填充）..

我像这样使用它们：

我的标题内部：

        ID3D10RenderTargetView** m_ppBuffer;
        ID3D10Texture** m_ppTextures;
        ID3D10ShaderResourceView** m_ppshaderView;

每一帧：

this->m_pDevice->OMSetRenderTargets(this->m_TextureCount, this->m_ppBuffer, this->m_pDepthBuffer);
for (int32 i = 0; i < this->m_TextureCount; i++)
    this->m_pDevice->ClearRenderTargetView(this->m_pBuffer[i], a_Color.colors);
....
....
    this->m_pEffect->GetVariableByName("DiffuseMap")->AsShaderResource()->SetResource(m_ppshaderView[0]);
    this->m_pEffect->GetVariableByName("NormalMap")->AsShaderResource()->SetResource(m_ppshaderView[1]);
    this->m_pEffect->GetVariableByName("PositionMap")->AsShaderResource()->SetResource(m_ppshaderView[2]);
    this->m_pDevice->IASetInputLayout(this->m_pInputLayout);
    this->m_pTechnique->GetPassByIndex(0)->Apply(0);
    this->m_pDevice->IASetPrimitiveTopology(primitiveTopology);
    this->m_pDevice->Draw(a_Vertices, 0);

我使用的Shader绘制到rendertargets：

float4x4 Scale;
float4x4 Rotation;
float4x4 Translation;
float4x4 View;
float4x4 Projection;

Texture2D Diffuse;

SamplerState TextureSampler
{
  Filter = MIN_MAG_MIP_Linear;
  AddressU = WRAP;
  AddressV = WRAP;
};
struct VertexShaderInput
{
  float3 Position : POSITION0;
  float2 UV       : TEXCOORD0;
  float3 Color    : COLOR0;
  float3 Normal   : NORMAL0;
};

struct VertexShaderOutput
{
  float4 PositionOut : SV_POSITION;
  float4 Position : POSITION0;
  float2 UV       : TEXCOORD0;
  float3 Color    : COLOR0;
  float3 Normal   : NORMAL0;
};

struct PixelShaderOutput
{
  float4 colorMap: SV_TARGET0;
  float4 normalMap: SV_TARGET1;
  float4 positionMap: SV_TARGET2;
};


VertexShaderOutput VS_MAIN(VertexShaderInput input)
{
  VertexShaderOutput Output = (VertexShaderOutput)0;

  float4 pos = float4(input.Position.xyz, 1);

  float4x4 Model = mul(mul(Scale,Rotation),Translation);
  float4x4 MVP = mul(mul(Model,View),Projection);

  Output.Position = mul(pos,MVP);
  Output.PositionOut = mul(pos,MVP);

  Output.UV = input.UV;

  Output.Color = input.Color;

  Output.Normal = input.Normal;

  return Output;
}

PixelShaderOutput PS_MAIN(VertexShaderOutput input)
{
  PixelShaderOutput output;

  float4 blend = Diffuse.Sample(TextureSampler, input.UV);
  output.colorMap = blend;
  output.normalMap = float4(input.Normal,1);
  output.positionMap = float4(input.Position.xyz,1);

  return output;
}

RasterizerState Culling
{
  CullMode = 1;
};

technique10 Main
{
  pass p0
  {
    SetRasterizerState(Culling);
    SetVertexShader(CompileShader(vs_4_0, VS_MAIN()));
    SetGeometryShader(NULL);
    SetPixelShader(CompileShader(ps_4_0, PS_MAIN()));
   }
};

之后，我使用一个Quad和这个着色器渲染我的Rendertargets。 TextureID是我在代码中定义的值，因此我可以在运行时使用箭头在rendertarget纹理之间切换。

float4x4 Scale;
float4x4 Rotation;
float4x4 Translation;
float4x4 View;
float4x4 Projection;
float textureID;

Texture2D DiffuseMap;
Texture2D NormalMap;
Texture2D PositionMap;

SamplerState TextureSampler
{
  Filter = MIN_MAG_MIP_Linear;
  AddressU = WRAP;
  AddressV = WRAP;
};
struct VertexShaderInput
{
  float3 Position : POSITION0;
  float2 UV       : TEXCOORD0;
  float3 Color    : COLOR0;
  float3 Normal   : NORMAL;
};

struct VertexShaderOutput
{
  float4 Position : SV_POSITION;
  float2 UV       : TEXCOORD0;
  float3 Color    : COLOR0;
  float3 Normal   : NORMAL;
};

struct PixelShaderOutput
{
  float4 color: SV_TARGET0;
};


VertexShaderOutput VS_MAIN(VertexShaderInput input)
{
  VertexShaderOutput Output = (VertexShaderOutput)0;

  float4 pos = float4(input.Position.xyz, 1);

  float4x4 Model = mul(mul(Scale,Rotation),Translation);
  float4x4 MVP = mul(mul(Model,View),Projection);

  Output.Position = mul(pos,MVP);

  Output.UV = input.UV;

  Output.Color = input.Color;

  Output.Normal = input.Normal;

  return Output;
}

PixelShaderOutput PS_MAIN(VertexShaderOutput input)
{
  PixelShaderOutput output;

  float4 blend = DiffuseMap.Sample(TextureSampler, input.UV);
  float4 norm = NormalMap.Sample(TextureSampler, input.UV);
  float4 pos = PositionMap.Sample(TextureSampler, input.UV);
  blend.a = 1;
  if(textureID == 0.0)
    output.color = blend;
  else if(textureID == 1.0)
    output.color = norm;
  else
    output.color = pos;

  return output;
}

RasterizerState Culling
{
  CullMode = 1;
};

technique10 Main
{
  pass p0
  {
    SetRasterizerState(Culling);
    SetVertexShader(CompileShader(vs_4_0, VS_MAIN()));
    SetGeometryShader(NULL);
    SetPixelShader(CompileShader(ps_4_0, PS_MAIN()));
   }
};

Answer 1

我使用了图形调试器，这让我知道它不起作用的原因！

我忘了为其他Rendertarget设置BlendState。将BlendEnable设置为true最终修复了它。

DirectX10只绘制一个rendertarget

1 个答案: