func draw() {
if program.Value == 0 {
initGL()
initCL()
}
if numPlatforms == 0 {
gl.ClearColor(1, 0, 0, 1)
} else {
gl.ClearColor(0, 1, 0, 1)
}
gl.Clear(gl.COLOR_BUFFER_BIT)
gl.UseProgram(program)
blue += 0.01
if blue > 1 {
blue = 0
}
gl.Uniform4f(color, 0, 0, blue, 1)
gl.Uniform2f(offset, float32(touchLoc.X/geom.Width), float32(touchLoc.Y/geom.Height))
gl.BindBuffer(gl.ARRAY_BUFFER, buf)
gl.EnableVertexAttribArray(position)
gl.VertexAttribPointer(position, coordsPerVertex, gl.FLOAT, false, 0, 0)
gl.DrawArrays(gl.TRIANGLES, 0, vertexCount)
gl.DisableVertexAttribArray(position)
debug.DrawFPS()
}
func draw() {
if scene == nil {
loadScene()
}
now := clock.Time(time.Since(start) * 60 / time.Second)
if now == lastClock {
// TODO: figure out how to limit draw callbacks to 60Hz instead of
// burning the CPU as fast as possible.
// TODO: (relatedly??) sync to vblank?
return
}
lastClock = now
gl.ClearColor(1, 1, 1, 1)
gl.Clear(gl.COLOR_BUFFER_BIT)
eng.Render(scene, now)
debug.DrawFPS()
}
func draw() {
gl.ClearColor(1, 0, 0, 1) // RGBA value used to clear buffer: red
gl.Clear(gl.COLOR_BUFFER_BIT)
debug.DrawFPS()
}