Re:WebGPU Shading Language
by yoden on Tuesday March 10, 2020 @01:19PM
(#22537358)
64 bit support has been around on the desktop for a decade at this point (Through OpenGL4 / GL_ARB_gpu_shader_fp64 / cl_khr_fp64).
Unfortunately it is not exposed in Firefox or Chrome, even if the underlying hardware supports it. I think this is creating a chicken and egg problem - if WebGL were to actually support the capabilities of the underlying hardware, maybe there would be more interest in deploying 64-bit extensions on other platforms like mobile. Even emulated support would be a win, compared to having every developer emulate fp64/i64 themselves in GLSL.
So I am also disappointed in this proposal's failure to mention 64-bit support, even as an extension. At least they're reserving the keywords, I guess.
Unfortunately it is not exposed in Firefox or Chrome, even if the underlying hardware supports it. I think this is creating a chicken and egg problem - if WebGL were to actually support the capabilities of the underlying hardware, maybe there would be more interest in deploying 64-bit extensions on other platforms like mobile. Even emulated support would be a win, compared to having every developer emulate fp64/i64 themselves in GLSL.
So I am also disappointed in this proposal's failure to mention 64-bit support, even as an extension. At least they're reserving the keywords, I guess.