PrepFragShader()

void ShadingManager::PrepFragShader ( )

private

Definition at line 566 of file ShadingManager.cpp.

{
    fsh->Clear();
    fsh->AddTopLine(GLSLLine("out vec4 FragColor;", "The result of the fragment shader"));
    fsh->AddTopLine(GLSLLine(""));
    fsh->AddTopLine(GLSLLine("in float height;", "Take the height passed in from the Geometry Shader"));
    fsh->AddTopLine(GLSLLine("in vec4 FragPos;", "Take the world position passed in from the Geometry Shader"));
    fsh->AddTopLine(GLSLLine("in vec4 Extras1;", "Take the extras 1 passed in from the Geometry Shader"));
    fsh->AddTopLine(GLSLLine("in vec3 Normal;", "Take the normal passed in from the Geometry Shader"));
    fsh->AddTopLine(GLSLLine("in vec2 TexCoord;", "Take the texture coordinates passed in from the Geometry Shader"));
    fsh->AddTopLine(GLSLLine("in mat3 TBN;", "Take the tangent bitangent normal matrix in from the Geometry Shader"));
    fsh->AddTopLine(GLSLLine(""));
    fsh->AddTopLine(GLSLLine(extraSource));
    fsh->AddTopLine(GLSLLine(""));
    fsh->AddTopLine(GLSLLine(R"(
    struct DataBlob
    {
        float d[32];
    };
    )"));
    fsh->AddTopLine(GLSLLine("const float PI = 3.14159265359;"));
    fsh->AddTopLine(GLSLLine("const float gamma = 2.2f;"));
    fsh->AddUniform(GLSLUniform("_LightPosition", "vec3"));
    fsh->AddUniform(GLSLUniform("_LightColor", "vec3"));
    fsh->AddUniform(GLSLUniform("_LightStrength", "float"));
    fsh->AddUniform(GLSLUniform("_CameraPos", "vec3"));
    fsh->AddUniform(GLSLUniform("_HMapMinMax", "vec3"));
    fsh->AddUniform(GLSLUniform("_TextureBake", "float", "0.0f"));
    fsh->AddUniform(GLSLUniform("_Slot", "float", "0.0f"));
    fsh->AddUniform(GLSLUniform("_Tiled", "float", "0.0f"));
    fsh->AddUniform(GLSLUniform("_NumTiles", "float", "0.0f"));
    fsh->AddUniform(GLSLUniform("_TileX", "float", "0.0f"));
    fsh->AddUniform(GLSLUniform("_TileY", "float", "0.0f"));
    fsh->AddUniform(GLSLUniform("_Textures", "sampler2DArray"));
    GLSLSSBO dataBlobs("dataBlobs", std::to_string(sharedMemoryManager->ssboBinding), "These are small data blobs which may be used for nodes, etc.");
    dataBlobs.AddLine(GLSLLine("DataBlob data[];"));
    fsh->AddSSBO(dataBlobs);
    GLSLFunction main("main");
    main.AddLine(GLSLLine(""));
    main.AddLine(GLSLLine("vec3 textureBakeSlots[10];"));
    GLSLLine tmp("", "");
    NodeInputParam param;
    param.userData1 = &main;
    param.userData2 = &tmp;
    shaderNodeEditor->outputNode->Evaluate(param, nullptr);
    main.AddLine(GLSLLine(""));
    main.AddLine(GLSLLine(R"(
    if(_TextureBake == 1.0f)
    {
        textureBakeSlots[0] =  vec3( (height - _HMapMinMax.x) / (_HMapMinMax.y - _HMapMinMax.x) ); // Slot 0 is reserved for height map
        FragColor = vec4(textureBakeSlots[int(_Slot)], 1.0f);
        return;
    }   
    )"));
    main.AddLine(GLSLLine(""));
    main.AddLine(GLSLLine("FragColor = vec4(" + tmp.line + ", 1.0f);"));
    fsh->AddFunction(main);
}