get_pixel()

std::array< float, 4 > MayaFlux::Nodes::GpuSync::TextureNode::get_pixel ( uint32_t  x, uint32_t  y  ) const

protected

Get pixel color at (x, y)

Parameters

x	X coordinate
y	Y coordinate

Returns

RGBA values as array [r, g, b, a]

Definition at line 42 of file TextureNode.cpp.

{
    if (x >= m_width || y >= m_height) {
        return { 0.0F, 0.0F, 0.0F, 0.0F };
    }
 
    size_t idx = (static_cast<size_t>(y) * m_width + x) * 4;
    return {
        m_pixel_buffer[idx + 0],
        m_pixel_buffer[idx + 1],
        m_pixel_buffer[idx + 2],
        m_pixel_buffer[idx + 3]
    };
}

References m_height, m_pixel_buffer, and m_width.