HLSL - Texture (s0)

@lofcz wrote:

Hi devs,
can't figure out how to pass a Texture2D to a shader, read trough some materials but they are mostly obsolete, none of them worked for me (I might be doing something trivial in the wrong way). Trying to create a simple passtrough effect, using MonoGame 3.8 latest dev build, simple 2D stuff, DirectX. I'm able to get colors working in shader as:

float4 PixelShaderFunction(float2 coords: TEXCOORD0) : COLOR0
{
    return float4(1, 0, 0, 1);
}

technique Technique1
{
    pass Pass1
    {
        PixelShader = compile ps_4_0_level_9_3 PixelShaderFunction();
    }
}

Tried to get my sampler as:

sampler MySampler : register(s0)

And obtaining color as float4 color = tex2D(s0, coords);

C# code:

sb.Begin(transformMatrix: m, effect: effect);
// tried effect.CurrentTechnique.Passes[0].Apply(); here as well
sb.Draw(sprite, position, FinalizeColor(DrawColor));
sb.End();

Image1 - Shader setting all pixels to a color (red here) is working fine

Bezejmenný.png1570x574 43.1 KB

I have some experience with GLSL, totally new to HLSL if anyone could help me resolve this issue I would be grateful, sure this will help other passangers too.

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