Enable blending by default

engine/engine.go

@@ -178,6 +178,9 @@ func initOpenGL() error {
 	gl.CullFace(gl.BACK)
 	gl.FrontFace(gl.CCW)
 
+	gl.Enable(gl.BLEND)
+	gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
+
 	gl.ClearColor(0, 0, 0, 1)
 	return nil
 }

main.go

@@ -18,6 +18,10 @@ import (
 	"github.com/veandco/go-sdl2/sdl"
 )
 
+//BUGS:
+// need to rebind the texutre if the texture (or any material values) change between draw calls
+// DT handling for when it is zero is wrong! (Gives 1000 DT)
+
 //TODO: Tasks:
 // Build simple game
 // Integrate physx