24 lines
734 B
Go
24 lines
734 B
Go
package pixelgl
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import "github.com/go-gl/gl/v3.3-core/gl"
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// Init initializes OpenGL by loading the function pointers from the active OpenGL context.
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// This function must be manually run inside the main thread (Do, DoErr, DoVal, etc.).
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//
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// It must be called under the presence of an active OpenGL context, e.g., always after calling
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// window.MakeContextCurrent(). Also, always call this function when switching contexts.
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func Init() {
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err := gl.Init()
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if err != nil {
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panic(err)
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}
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gl.Enable(gl.BLEND)
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gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
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}
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// Clear clears the current framebuffer or window with the given color.
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func Clear(r, g, b, a float32) {
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gl.ClearColor(r, g, b, a)
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gl.Clear(gl.COLOR_BUFFER_BIT)
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}
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