cognitive-renderer-gl 0.0.2

GL rendering for `cognitive`
Documentation 
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#version 300 es

//! Vertex shader source code for OpenGL ES 3.0 (GLSL ES 300)

in vec2 vertices;
in vec2 texcoords;
uniform ivec2 screen_size;
out vec2 v_texcoords;

void main(void)
{
    mat2 view_matrix = mat2(2.0/float(screen_size.x),          0.0,
                                 0.0,              -2.0/float(screen_size.y));
    vec2 translation_vector = vec2(-1.0, 1.0);
    gl_Position = vec4(view_matrix * vertices + translation_vector, 0.0, 1.0);
    v_texcoords = texcoords;
}