[openrndr-demos] Add DemoTessShader03

openrndr-demos/src/demo/resources/shaders/ts-03.vert

@@ -0,0 +1,16 @@
+#version 430 core
+
+in vec3 a_position;
+
+
+out vec3 va_position;
+
+uniform mat4 view;
+uniform mat4 proj;
+uniform mat4 model;
+
+void main() {
+    va_position = a_position;
+    gl_Position = proj * view * model * vec4(a_position, 1.0);
+
+}