C++ (Cpp) Texture Exemples

Exemple #1

Fichier : calculator_gpu.cpp Projet : matus-chochlik/oglplus

void SpectraDefaultGPUMatrixTransf::BeginBatch() {
    using namespace oglplus;
    gl_canvas->SetCurrent(*gl_context);
    transf_prog.Use();

    Texture::Active(0);
    matrix_tex.Bind(Texture::Target::Buffer);
    prog_matrix_data.Set(0);

    Texture::Active(1);
    input_tex.Bind(Texture::Target::Buffer);
    prog_input_data.Set(1);

    prog_input_size.Set(int(in_size));

    vao.Bind();

    Context gl;
    gl.Enable(Capability::RasterizerDiscard);
}

Exemple #2

Fichier : 001_hello_glut_glew.cpp Projet : JanChou/oglplus

	Example(std::size_t w, std::size_t h)
	 : width(w)
	 , height(h)
	 , font_file("fonts", "FreeSans", ".ttf")
	 , font(font_file)
	{
		using namespace oglplus;

		tex.Bind(TextureTarget::Rectangle);
		fbo.Bind(FramebufferTarget::Read);

		PrepareText();
	}

Exemple #3

Fichier : 029_mandelbrot_glfw3.cpp Projet : James-Z/oglplus

//------------------------------------------------------------------------------
oglplus::Texture Example::MakePalette(void)
{
	oglplus::Texture palette;

	oglplus::Texture::Active(0);
	palette.Bind(oglplus::TextureTarget::_1D);

	GeneratePaletteImage();

	oglplus::Texture::MinFilter(oglplus::TextureTarget::_1D, oglplus::TextureMinFilter::Linear);
	oglplus::Texture::MagFilter(oglplus::TextureTarget::_1D, oglplus::TextureMagFilter::Linear);
	oglplus::Texture::WrapS(oglplus::TextureTarget::_1D, oglplus::TextureWrap::Repeat);
	oglplus::Texture::WrapT(oglplus::TextureTarget::_1D, oglplus::TextureWrap::Repeat);

	return palette;
}

Exemple #4

Fichier : main.cpp Projet : UnickSoft/OpenGL3-Phong-and-Ward-s-BRDF-model

    void LoadBRDFMap(const std::string& filename)
    {
        FREE_IMAGE_FORMAT formato = FreeImage_GetFileType(filename.c_str(), 0);
        FIBITMAP* imagen = FreeImage_Load(formato, filename.c_str());
        FIBITMAP* temp = imagen;
        imagen = FreeImage_ConvertTo24Bits(imagen);
        FreeImage_Unload(temp);
        
        int w = FreeImage_GetWidth(imagen);
        int h = FreeImage_GetHeight(imagen);
        
        GLubyte* textura = new GLubyte[3 * w * h];
        memset(textura, 0, 3 * w * h);
        
        char* pixeles = (char*)FreeImage_GetBits(imagen);
        size_t span   = FreeImage_GetLine(imagen);
        
        for(int y = 0; y < h; y++)
        {
            char* pCurrentImageLine   = &pixeles[y * span];
            GLubyte* pCurrentTextureLine = &textura [y * w * 3];
            for(int x = 0; x < w; x++)
            {
                pCurrentTextureLine[x * 3 + 2] = pCurrentImageLine[x * 3 + 0];
                pCurrentTextureLine[x * 3 + 1] = pCurrentImageLine[x * 3 + 1];
                pCurrentTextureLine[x * 3 + 0] = pCurrentImageLine[x * 3 + 2];
            }
        }
        
        oglplus::Texture::Active(0);
        mapTexture.Bind(oglplus::TextureTarget::_2D);

        oglplus::Texture::Image2D  (oglplus::TextureTarget::_2D, 0, oglplus::PixelDataInternalFormat::RGB, w, h, 0, oglplus::PixelDataFormat::RGB, oglplus::DataType::UnsignedByte, textura);
        
        oglplus::Texture::MinFilter(oglplus::TextureTarget::_2D, oglplus::TextureMinFilter::Linear);
        oglplus::Texture::MagFilter(oglplus::TextureTarget::_2D, oglplus::TextureMagFilter::Linear);
        oglplus::Texture::WrapS(oglplus::TextureTarget::_2D, oglplus::TextureWrap::Repeat);
        oglplus::Texture::WrapT(oglplus::TextureTarget::_2D, oglplus::TextureWrap::Repeat);
        
        delete[] textura;
        FreeImage_Unload(imagen);
    }