generate_fullscreen_quad()

void MayaFlux::Buffers::NodeTextureBuffer::generate_fullscreen_quad

(

)

Definition at line 140 of file NodeTextureBuffer.cpp.

{
    struct QuadVertex {
        glm::vec3 position;
        glm::vec2 texcoord;
    };
 
    const std::vector<QuadVertex> quad = {
        { { -1.0F, -1.0F, 0.0F }, { 0.0F, 1.0F } },
        { { 1.0F, -1.0F, 0.0F }, { 1.0F, 1.0F } },
        { { -1.0F, 1.0F, 0.0F }, { 0.0F, 0.0F } },
        { { 1.0F, 1.0F, 0.0F }, { 1.0F, 0.0F } }
    };
 
    m_vertex_bytes.resize(quad.size() * sizeof(QuadVertex));
    std::memcpy(m_vertex_bytes.data(), quad.data(), m_vertex_bytes.size());
 
    // Set vertex layout
    Kakshya::VertexLayout vertex_layout {
        .vertex_count = 4,
        .stride_bytes = sizeof(QuadVertex),
        .attributes = {
            { .component_modality = Kakshya::DataModality::VERTEX_POSITIONS_3D,
                .offset_in_vertex = offsetof(QuadVertex, position),
                .name = "position" },
            { .component_modality = Kakshya::DataModality::TEXTURE_COORDS_2D,
                .offset_in_vertex = offsetof(QuadVertex, texcoord),
                .name = "texcoord" } }
    };
 
    set_vertex_layout(vertex_layout);
 
    MF_DEBUG(Journal::Component::Buffers, Journal::Context::BufferProcessing,
        "NodeTextureBuffer: generated fullscreen quad");
}

References MayaFlux::Journal::BufferProcessing, MayaFlux::Journal::Buffers, m_vertex_bytes, MF_DEBUG, MayaFlux::Buffers::VKBuffer::set_vertex_layout(), MayaFlux::Kakshya::TEXTURE_COORDS_2D, MayaFlux::Kakshya::VertexLayout::vertex_count, and MayaFlux::Kakshya::VERTEX_POSITIONS_3D.

Referenced by setup_processors().

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