toruniina/spray

molecular viewer based on ray-tracing

Screenshot

What is it?

A molecular viewer/renderer.

spray based on the path-tracing method that is a kind of Monte-Carlo ray-tracing algorithm.

What's next

• pinhole camera
• orthogonal camera
• spherical object
• cylindrical object
• triangular object
• spatial indexing
• emission
• lambert material
• metalic material
• transparent material
• volume rendering
• config file
• save state into a file

Installation

It currently supports Linux only.

Tested only on Ubuntu 16.04 + CUDA 9.2 + OpenGL 4.5.

Prerequisites

The following packages are required.

• C++14 compatible compiler
• CUDA 9 or later
• OpenGL 4.5 or later
• CMake
• git

Depencency

spray depends on the following libraries.

• png++
  • You can install it using your distribution's package manager (like apt install libpng++-dev).
  • It depends on libpng v1.2. If you manually install it, you might need to install libpng12-dev also.
• glfw3
  • you can install it using your distribution's package manager (like apt install libglfw3-dev).
• glad
  • will automatically be cloned into extlib/ by CMake.
• imgui
  • will automatically be cloned into extlib/ by CMake.
• thrust
  • will be found /path/to/cuda/include after installing cuda.

Build

To isolate stuff generated by building, I strongly recommend to make a build/ directory and run build script there.

$ mkdir build
$ cd build
$ cmake .. # -DCMAKE_CXX_COMPILER=/path/to/compiler (optional)
$ make

spray's Issues

enable to open structure file from gui

glfwSetDropCallback may be helpful

enable to change material/color from gui

spray::cuda::render function can return the index of the object that the ray going through the pixel hits first.
From that information, we can get the information about the object.