SharpDX像素着色器需要不同的SpriteBatches和DrawQuad的不同参数。可以解决的？

Question

我很擅长构建图形引擎，并且对某个特定问题感到难过。

我在使用相同的参数集来处理像素着色器时遇到问题。导致我必须为每种方法创建2种不同的技术。如果我尝试为两者使用相同的参数，其中一个将只返回任何内容。

我的目标是只为着色器使用一组参数，从而消除了我使用的每种技术的精灵特定版本。

以下是我目前要做的事情：

HLSL像素着色器

Texture2D Texture : register(t0);
SamplerState TextureSampler : register(s0);
Texture2D TextureAlpha;

cbuffer ProjectionMatrix : register(b0)
{
    row_major float4x4 MatrixTransform : packoffset(c0);
};

void VS(
    inout float4 color    : COLOR0,
    inout float2 texCoord : TEXCOORD0,
    inout float4 position : SV_POSITION)
{
    position = mul(position, MatrixTransform);
}

//Method required for using DrawQuad
float4 PS(
    float2 tex : TEXCOORD0
    ) : SV_TARGET
{
    float3 tcolor = Texture.Sample(TextureSampler, tex).rgb * TextureAlpha.Sample(TextureSampler, tex).a;
    float alpha = TextureAlpha.Sample(TextureSampler, tex).a * Texture.Sample(TextureSampler, tex);

    return float4(tcolor, alpha);
}

//Method required for using in SpriteBatches
float4 PSSprite(
    float4 color    : COLOR0,
    float2 tex : TEXCOORD0
    ) : SV_TARGET
{
    return PS(tex);
}

technique MaskSprite
{
    pass
    {
        Profile = 9.3;
        //Sprite's also require the VS to be set as well.
        VertexShader = compile vs_4_0_level_9_1 VS();
        PixelShader = compile ps_4_0_level_9_1 PSSprite();
    }
}

technique Mask
{
    pass
    {
        Profile = 9.3;
        PixelShader = compile ps_4_0_level_9_1 PS();
    }
}

LoadContent（）代码

protected override void LoadContent()
{
    //...  

    //render target to mask
    var backDesc = GraphicsDevice.BackBuffer.Description;
    renderTargetMask = ToDisposeContent(RenderTarget2D.New(GraphicsDevice, backDesc.Width, backDesc.Height, 1, backDesc.Format));

    //sprite batch initialization
    spriteBatch = ToDisposeContent(new SpriteBatch(GraphicsDevice));

    //load in fx and textures 
    ballsTexture = Content.Load<Texture2D>("Balls");
    alphaMapTexture= Content.Load<Texture2D>("AlphaMap");
    maskEffect = Content.Load<Effect>("Mask");

    //...
}

SpriteBatch代码

protected override void Draw(GameTime gameTime)
{
    //...
    maskEffect.CurrentTechnique = bloomEffect.Techniques["MaskSprite"];
    maskEffect.Parameters["Destination"].SetResource(alphaMapTexture); //Texture2D

    spriteBatch.Begin(
                    SpriteSortMode.Deferred, 
                    GraphicsDevice.BlendStates.NonPremultiplied, 
                    null, null, null, maskEffect);

    spriteBatch.Draw(
                    ballsTexture, //Texture2D
                    new Vector2(10, 10),
                    new Rectangle(0, 0, ballsDestTexture.Width, ballsDestTexture.Height),
                    Color.White,
                    0.0f,
                    new Vector2(0, 0),
                    Vector2.One,
                    SpriteEffects.None,
                    0f);

    spriteBatch.End();
    //...
}

绘制四码

protected override void Draw(GameTime gameTime)
{
    //Draw stuff to renderTargetMask

    //...
    maskEffect.CurrentTechnique = maskEffect.Techniques["Mask"];
    maskEffect.Parameters["Texture"].SetResource(renderTargetMask);
    maskEffect.Parameters["TextureAlpha"].SetResource(ballsDestTexture);
    maskEffect.Parameters["TextureSampler"]
            .SetResource(GraphicsDevice.SamplerStates.PointClamp);
    var pQuad = new PrimitiveQuad(GraphicsDevice);
    pQuad.Draw(maskEffect.CurrentTechnique.Passes[0]);
    //...
}