I'm thinking of writing a pixel shader for Windows Terminal and I'd love to add phosphor persistence. For that, I'd need to save a couple previous results of the shader output and keep them across multiple pixel calls. Is there a way to declare a texture map that is preserved across multiple frames in time?

CodePudding user response：

Save the result of each shader call outside of the shader at the end of each frame and send it to the shader in a Texture2D on the next call. Sample the texture to find the previous pixel value. Nothing is preserved within the shader inbetween frames.