func onPaint() {
if scene == nil {
loadScene()
}
gl.ClearColor(1, 1, 1, 1)
gl.Clear(gl.COLOR_BUFFER_BIT)
now := clock.Time(time.Since(startTime) * 60 / time.Second)
eng.Render(scene, now, sz)
debug.DrawFPS(sz)
}
func onDraw(sz size.Event) {
select {
case <-determined:
if ok {
gl.ClearColor(0, 1, 0, 1)
} else {
gl.ClearColor(1, 0, 0, 1)
}
default:
gl.ClearColor(0, 0, 0, 1)
}
gl.Clear(gl.COLOR_BUFFER_BIT)
debug.DrawFPS(sz)
}
func onPaint(sz size.Event) {
gl.ClearColor(1, 0, 0, 1)
gl.Clear(gl.COLOR_BUFFER_BIT)
gl.UseProgram(program)
green += 0.01
if green > 1 {
green = 0
}
gl.Uniform4f(color, 0, green, 0, 1)
gl.Uniform2f(offset, touchX/float32(sz.WidthPx), touchY/float32(sz.HeightPx))
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(sz)
}