more shader things that needs multiplatform investigation

src/shaders/gl32shaperenderer.vert

@@ -0,0 +1,14 @@
+#version 150
+
+in vec4 a_position;
+in vec4 a_color;
+
+uniform mat4 u_projModelView;
+out vec4 v_col;
+
+void main() {
+    gl_Position = u_projModelView * a_position;
+    v_col = a_color;
+    v_col.a *= 255.0 / 254.0;
+    gl_PointSize = 1.0;
+}