func draw(width, height int) {
gl.Viewport(0, 0, width, height)
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
gl.BindBuffer(gl.ARRAY_BUFFER, verticesArrayBuffer)
gl.VertexAttribPointer(attrPos, 4, gl.FLOAT, false, 0, 0)
gl.BindBuffer(gl.ARRAY_BUFFER, colorsArrayBuffer)
gl.VertexAttribPointer(attrColor, 4, gl.FLOAT, false, 0, 0)
gl.DrawArrays(gl.TRIANGLES, 0, 3)
gl.Flush()
gl.Finish()
}
func drawScene() {
select {
case m := <-MVP:
gl.UniformMatrix4fv(uMVP, 1, false, m[:])
default:
break
}
gl.Clear(gl.COLOR_BUFFER_BIT)
gl.DrawArrays(gl.TRIANGLE_STRIP, 0, 4)
gl.Flush()
gl.Finish()
}
func draw(width, height int) {
gl.Viewport(0, 0, width, height)
gl.Clear(gl.COLOR_BUFFER_BIT)
gl.BindBuffer(gl.ARRAY_BUFFER, verticesArrayBuffer)
gl.VertexAttribPointer(attrPos, 4, gl.FLOAT, false, 6*4, 0)
// bind texture - FIX size of vertex
gl.VertexAttribPointer(attrTexIn, 2, gl.FLOAT, false, 6*4, 4*4)
gl.ActiveTexture(gl.TEXTURE0)
gl.BindTexture(gl.TEXTURE_2D, textureBuffer)
gl.Uniform1i(unifTexture, 0)
gl.DrawArrays(gl.TRIANGLE_FAN, 0, 4)
gl.Flush()
gl.Finish()
}