Effecting to some SpriteBatches ploblem.

Graphics
1

I have just trying to add HLSL effect to SpriteBatch.Draw() method.
So,I tried like this;

        foreach (CustomComponent cr in cus)
        {
            foreach (var v in cr.func) _blurEffect.Parameters["E_" + v].SetValue(cr.funcCfg[v]);
            spriteBatch.Begin(SpriteSortMode.BackToFront, BlendState.NonPremultiplied, SamplerState.PointClamp, DepthStencilState.Default, RasterizerState.CullNone, _blurEffect);
            cr.Draw(spriteBatch, camera, this.GraphicsDevice);
            spriteBatch.End();
        }

note)“CustomComponent” is contains drawable objectives and “cus” is a list of its.

But, this code caused a problem, like this.
[PROBLEM IMG]

YGFramework 2017_02_07 23_58_18.png800×480 5.33 KB

And… change the codes, this problem can be fixed.
[FIXED CODE]

        foreach (var v in cus[0].func) _blurEffect.Parameters["E_" + v].SetValue(cus[0].funcCfg[v]);
        spriteBatch.Begin(SpriteSortMode.BackToFront, BlendState.NonPremultiplied, SamplerState.PointClamp, DepthStencilState.Default, RasterizerState.CullNone, _blurEffect);
        foreach (CustomComponent cr in cus)
        {
            cr.Draw(spriteBatch, camera, this.GraphicsDevice);
        }
        spriteBatch.End();

[FIXED IMAGE]

YGFramework 2017_02_08 0_02_46.png800×480 6.76 KB

I think this problem caused by spriteBatch.Draw(); inside foreach.
But, I can’t use Effect per one sprite If I using fixed code.
So, How can I solve this problem?

2

looks like you are using an alpha effect and it’s not using that in your hlsl code.

To make an alpha cutoff in hlsl add this line

const float alphaThreshold = 0.5f;
clip( texture.a < alphaThreshold ? -1:1 );

EDIT: Actually nvm, this is a different issue, I’ll come back to you soon. This would work if your game is pixel-perfect.

EDIT2: So the real issue is sorting, spritebatch can only sort the inside a begin() End() term. It looks like the character is drawn first and the wooden marker is drawn afterwards, but it is being ignored because the character has filled the depth already.

I am not 100% sure about the depth buffer properties of spritebatch and if it draws to it (@Jjagg) , I would have to check that out. But if you use the normal spritebatch.Begin(deferred) and sort yourself it will work.

3

I think by default it does not, but I’m not sure either.

4

thanks a lot.

float4 color = tex2D(TextureSampler,input.TextureCordinate)* input.Color;

if(E_glitch)
{
float size1 = grids * 100;
float2 uv1 = floor(input.TextureCordinate * size1 + 0.5) / size1;
color = tex2D(TextureSampler, uv1);
}
if(E_rndcolor)
{
float value = 0.299color.r + 0.587color.g + 0.114*color.b;
color.r = value;
color.g = rand;
}

const float alphaThreshold = 0.01f;
clip( color.a < alphaThreshold ? -1:1 );
return color;

Add these in last of PixelShader.

const float alphaThreshold = 0.01f;
clip( color.a < alphaThreshold ? -1:1 );

Then, it fixed.
Big thanks for kosmonautgames and Jjagg!

5

this will only work though if your pixels always cover a full pixel!

So you need to use samplerstate.pointsampler or make sure that your textures are scaled correctly.