Possibility of visualize frame by frame? about diffcloth HOT 2 CLOSED

One possible way to do this is changing the renderloop::renderRecordsForSystem() function in src/code/engine/RenderLoop.cpp at around L14. This is the function that is called by the visualization bash command. The render loop at around line 56 is the control logic for rendering the frames from the loaded folder.

L80 currentFrame = std::min(currentFrame+1, N-1); is selecting the frame to play from the folder. And currently it automatically goes to the next frame in the new iteration of the loop with currentFrame+1, and you want to change this so that currentFrame only +1 when the space key is pressed.

To do this:

• At line 65 insert spacePressed = true; (opengl detects space key pressed at current render loop iteration)
• Change the control logic at L80:
  currentFrame = spacePressed ? std::min(currentFrame+1, N-1) : currentFrame;
• Recompile the cpp code from the build folder with make

This should do the job.

from diffcloth.

Thanks for your timely answer and explanation for the control logic.
I think this should also reset spacePressed = false; after currentFrame = spacePressed ? std::min(currentFrame+1, N-1) : currentFrame; to work.
Thanks again!

from diffcloth.