1 files changed, 34 insertions, 0 deletions
diff --git a/Master/texmf-dist/asymptote/shaders/vertex.glsl b/Master/texmf-dist/asymptote/shaders/vertex.glsl
new file mode 100755
index 00000000000..9e3feda6988
--- /dev/null
+++ b/Master/texmf-dist/asymptote/shaders/vertex.glsl
@@ -0,0 +1,34 @@
+in vec3 position;
+in vec3 normal;
+
+#ifdef EXPLICIT_COLOR
+in uint color;
+#endif
+
+in int material;
+
+uniform mat4 projViewMat;
+uniform mat4 viewMat;
+uniform mat4 normMat;
+
+out vec3 ViewPosition;
+out vec3 Normal;
+    
+#ifdef EXPLICIT_COLOR
+out vec4 Color;
+#endif
+
+flat out int materialIndex;
+
+void main()
+{
+  gl_Position=projViewMat*vec4(position,1.0);
+  ViewPosition=(viewMat*vec4(position,1.0)).xyz;
+  Normal=normalize((normMat*vec4(normal,0)).xyz);
+
+#ifdef EXPLICIT_COLOR
+  Color=unpackUnorm4x8(color);
+#endif
+
+  materialIndex=material;
+}