advanced_opengl/9.instancing/shaders/instanced_arrays.vs


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#version 330 core
layout(location = 0) in vec2 apos;
layout(location = 1) in vec3 acolor;
layout(location = 2) in vec2 aoffset;

out vec3 color;

void
main(void)
{
    color = acolor;
    vec2 pos = apos*(gl_InstanceID/100.0f);
    gl_Position = vec4(pos+aoffset, 0.0f, 1.0f);
}