LitSpheres in Max viewport

dralex789 · Dec 2012

Got these badboys working in UDK over here incase anyone is curious Including a hacked world space option (instead of camera space).

http://www.polycount.com/forum/showthread.php?t=112129

Thanks for all the info here, couldn't have done it without it.

garner · Mar 2013

I couldn't find an HLSL matcap shader that worked with XNA so I built this from the previous Unity one.

#define MaxBones 59
float4x4 Bones[MaxBones];
float4x4 View;
float4x4 Projection;
float4x4 WorldInverseTranspose;
float4x4 World;


float4 MainColor = float4(1,1,1,1);
float3 lightDir1 = float3(1,1,1);
float3 lightDir2 = float3(-1,-1,-1);
float4 specularPower = 30;
float Kd = 1;
float Ks = 1;
float Kr = 1;


bool useTextureMap = false;
bool useSpecMap = true;
bool useNormalMap = false;
bool useEnvMap = false;
bool useMatcap = false;

//Texture Map
texture ColorMap;
sampler C_Sampler = sampler_state {
    Texture = <ColorMap>;
    MinFilter = Linear;
    MagFilter = Linear;
    MipFilter = Linear;
};

//Normal Map
texture NormalMap;
sampler N_Sampler = sampler_state {
    Texture = <NormalMap>;
    MinFilter = Linear;
    MagFilter = Linear;
    MipFilter = Linear;
};

//Environment Map
texture EnvironmentMap;
sampler Env_Sampler = sampler_state{
    Texture = <EnvironmentMap>;
    MinFilter = Linear;
    MagFilter = Linear;
    MipFilter = Linear;

};

//Specular Map
texture SpecularMap;
sampler Spec_Sampler = sampler_state{
    Texture = <SpecularMap>;
    MinFilter = Linear;
    MagFilter = Linear;
    MipFilter = Linear;
};


//Matcap Map
texture MatcapMap;
sampler Matcap_Sampler = sampler_state{
    Texture = <MatcapMap>;
    MinFilter = Linear;
    MagFilter = Linear;
    MipFilter = Linear;
};


struct VS_INPUT
{
    float4 Position : POSITION0;
    float2 TexCoord : TEXCOORD0; //Gets and stores the UV information
    float3 Normal : NORMAL0;
    float3 Tangent : TANGENT0;
    float4 BoneIndices : BLENDINDICES0;
    float4 BoneWeights : BLENDWEIGHT0;
                        
    float3  TtoV0 : TEXCOORD1;
    float3  TtoV1 : TEXCOORD2;
};

struct VS_OUTPUT
{
    float4 Position : POSITION0;
    float2 TexCoord : TEXCOORD0; //UV coord output
    float3 Data1 : TEXCOORD1;
    float3 Data2 : TEXCOORD2;
    float3 Data3 : TEXCOORD3;
    float3 Tangent : TEXCOORD6;
    float3  TtoV0 : TEXCOORD4;
    float3  TtoV1 : TEXCOORD5;
};

VS_OUTPUT VSBasic(VS_INPUT input) {
    VS_OUTPUT output;

    //For every bone transform
    float4x4 skinTransform = 0;
    skinTransform += Bones[input.BoneIndices.x] * input.BoneWeights.x;
    skinTransform += Bones[input.BoneIndices.y] * input.BoneWeights.y;
    skinTransform += Bones[input.BoneIndices.z] * input.BoneWeights.z;
    skinTransform += Bones[input.BoneIndices.w] * input.BoneWeights.w;

    //Transforming the point with the bone transforms, then view matrix and projection matrix
    float4 pos = mul(input.Position, skinTransform);
    float3 eyeLoc = mul(View._m30_m31_m32, transpose(View));
    float3 eyeDir = eyeLoc - pos;

    pos = mul(pos,View);
    pos = mul(pos,Projection);

    //The normals
    float3 nml = mul(input.Normal, skinTransform);
    nml = normalize(nml); //Normalize the normal

    output.Position = pos;
    output.TexCoord = input.TexCoord;

    output.Data1 = nml;
    output.Data2 = eyeDir;
    output.Data3 = 0;
    return output;
}

//Vertex shader for normal calculations
VS_OUTPUT VSNormals(VS_INPUT input) {
    VS_OUTPUT output;

    //For every bone transform
    float4x4 skinTransform = 0;
    skinTransform += Bones[input.BoneIndices.x] * input.BoneWeights.x;
    skinTransform += Bones[input.BoneIndices.y] * input.BoneWeights.y;
    skinTransform += Bones[input.BoneIndices.z] * input.BoneWeights.z;
    skinTransform += Bones[input.BoneIndices.w] * input.BoneWeights.w;

    //Transforming the point with the bone transforms, then view matrix and projection matrix
    float4 pos = mul(input.Position, skinTransform);
    float3 eyeLoc = mul(View._m30_m31_m32, transpose(View));
    float3 eyeDir = eyeLoc - pos;

    pos = mul(pos,View);
    pos = mul(pos,Projection);

    //Tangent, normal, binormal
    float3x3 tangentSpace;
    tangentSpace[0] = mul(input.Tangent, skinTransform);
    tangentSpace[1] = mul(cross(input.Tangent, input.Normal), skinTransform);
    tangentSpace[2] = mul(input.Normal, skinTransform);
    
    float3 tgtLightDir1 = mul(tangentSpace, lightDir1);
    float3 tgtLightDir2 = mul(tangentSpace, lightDir2);

    output.Position = pos;
    output.TexCoord = input.TexCoord;

    output.Data1 = normalize(tgtLightDir1);
    output.Data2 = normalize(tgtLightDir2);
    output.Data3 = normalize(mul(tangentSpace,eyeDir));

    output.Tangent = input.Tangent;

    output.TtoV0 = tgtLightDir1;
    output.TtoV1 = tgtLightDir2;

    output.TtoV0 = normalize(mul(tangentSpace, WorldInverseTranspose[0].xyz));
    output.TtoV1 = normalize(mul(tangentSpace, WorldInverseTranspose[1].xyz));

    return output;
}


float4 PSNormals(VS_OUTPUT input) : COLOR0{

    float4 outColor = tex2D(C_Sampler, input.Tangent);
    float3 normal =  2 * tex2D(N_Sampler, input.Tangent)- 1.0;
    normal = normalize(normal);
                   
    half2 vn;
    vn.x = dot(input.TtoV0, normal);
    vn.y = dot(input.TtoV1, normal);


    float4 matcapLookup = tex2D(Matcap_Sampler, vn*0.5 + 0.5);

    if (useTextureMap){
        matcapLookup.a = tex2D(C_Sampler, input.Tangent).a*0.5;   
        matcapLookup.rgb += tex2D(C_Sampler, input.Tangent).rgb*0.5-0.4;
    }


    return matcapLookup;
}


technique Technique1
{
    pass Pass1
    {
        VertexShader = compile vs_2_0 VSNormals();

        ZEnable = true;
        //CullMode = CCW;
        PixelShader = compile ps_2_0 PSNormals();
        
    }
}

Joost · Dec 2014

This thread deserves a necro. Great shader for previewing surfaces and smoothing.

It works fine for me with nitrous in 2012, but unfortunately it doesn't work with SSAO.
I'd pay for a matcap shader with working SSAO

RGhost · May 2016

I fixed Matballz shader to get it work with directx11 and wrote maxscript for creating material library with matcaps. http://veda3d.com/creating-lit-sphere-material-in-3dsmax/

musashidan · May 2016

RGhost said:

I fixed Matballz shader to get it work with directx11 and wrote maxscript for creating material library with matcaps. http://veda3d.com/creating-lit-sphere-material-in-3dsmax/

Thanks for your article. I renewed my interest in this a little while ago and came across your post. I didn't need to look any further, so thanks. I made a quick vid tut a while back, referencing your site and information. Hope you don't mind.

https://www.youtube.com/watch?v=DpsfwnIquZY

RGhost · May 2016

musashidan said:

RGhost said:

I fixed Matballz shader to get it work with directx11 and wrote maxscript for creating material library with matcaps. http://veda3d.com/creating-lit-sphere-material-in-3dsmax/

Thanks for your article. I renewed my interest in this a little while ago and came across your post. I didn't need to look any further, so thanks. I made a quick vid tut a while back, referencing your site and information. Hope you don't mind.

Glad that you find this article useful.

I like your vid, I will add link to it in my article.

hansolocambo · Apr 2017

Could someone please post the original fx version that worked with DirectX 9 ? The link at the beginning of this threat or on veda3D is dead. And I really need (for plugins reasons) to stick with 3DSMax 2013 which doesn't have DirectX11 available in the viewports Display Drivers !
Hope someone still have the file ! (Matballz.fx )

RGhost · Apr 2017

hansolocambo said:

Could someone please post the original fx version that worked with DirectX 9 ? The link at the beginning of this threat or on veda3D is dead. And I really need (for plugins reasons) to stick with 3DSMax 2013 which doesn't have DirectX11 available in the viewports Display Drivers !
Hope someone still have the file ! (Matballz.fx )

I fixed link to original shader, you can download from the page of my article.

LitSpheres in Max viewport

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