Idea: simple triangle rendering

GSoC_2022.md

@@ -120,6 +120,20 @@ All work is in C++ unless otherwise noted.
    * ***Difficulty:*** <Easy, Medium, Hard>
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+1. #### _IDEA:_ Simple triangle rendering
+   * ***Description:*** Some 3D algorithms require mesh rendering as their inner part, for example as a feedback for 3d reconstruction. Depending on algorithm type, a depth or a color rendering is required. This function can also be used as a simple debugging tool. Since light, shadows and correct texture rendering are separate huge problems, they are out of scope for this task.
+   * ***Expected Outcomes:***
+      * A function that takes as input a set of points, a set of indices that form triangles and produces depth rendering as output
+      * Per-vertex color support is desirable. In that case a function should also take vertex colors as input and produce RGB output
+      * Optional: accelerated version using SIMD, OpenCL or OpenGL
+      * Optional: jacobians of input parameters as a base for neural rendering
+  * ***Resources:***
+         * [Triangle rasterization tutorial](https://www.scratchapixel.com/lessons/3d-basic-rendering/rasterization-practical-implementation/rasterization-stage)
+         * [3D module in OpenCV](https://github.com/opencv/opencv/tree/next/modules/3d)
+   * ***Skills Required:*** mastery plus experience coding in C++; basic skills of optimizing code using SIMD; basic knowledge of 3D math
+   * ***Possible Mentors:*** Rostislav Vasilikhin
+   * ***Difficulty:*** Easy to Medium, depending on chosen task scope
+
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 * ## **All Ideas Above**