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GitOrigin-RevId: f4b1fe3f15810450fb6539e733f6a260d3ee082c

mediapipe/gpu/gl_simple_shaders.h

@@ -38,6 +38,17 @@ extern const GLchar* const kBasicVertexShader;
 //   vec2 sample_coordinate - texture coordinate for shader
 extern const GLchar* const kScaledVertexShader;
 
+// Applies an affine transformation to the vertex and leaves texture coordinates
+// as is. Input attributes:
+//   vec4 position - vertex position
+//   vec4 texture_coordinate - texture coordinate
+// Input uniform:
+//   mat3 homogeneous affine transform - transformation matrix for vertices
+//   vec2 viewport_size - size of the viewport
+// Output varying:
+//   vec2 sample_coordinate - texture coordinate for shader
+extern const GLchar* const kTransformedVertexShader;
+
 // Outputs the texture as it is.
 // Input varying:
 //   vec2 sample_coordinate - texture coordinate