feat():initial version

insDavi2.0/Res/shader/prog_texture_attr_alpha.fp

@@ -0,0 +1,10 @@
+uniform sampler2D u_sam_tex;
+uniform float u_flt_inv_alpha;
+varying vec2 v_v2_txc;
+varying float v_flt_alpha;
+void main()
+{
+	gl_FragColor = texture2D(u_sam_tex, v_v2_txc);
+	gl_FragColor.a *= v_flt_alpha;
+	gl_FragColor.a *= 1.0-u_flt_inv_alpha;
+}