As it looks gamma only supports assignments at the top level, since the "ast" function in program.cljs maps to g/set k v over the top level dictionary. The discard statement is needed for proper transparency sorting, as described in https://www.khronos.org/opengl/wiki/Transparency_Sorting .
I resorted to putting a magic vector vec4(0.0, 1.0, 2.0, 3.0) and then doing a search/replace on the glsl string to insert a discard later, but that's not very robust to changes in the gamma compiler. Is there a better temporary hack? And is support for imperative statements expected in the future or completely out of scope?
As it looks gamma only supports assignments at the top level, since the "ast" function in program.cljs maps to g/set k v over the top level dictionary. The discard statement is needed for proper transparency sorting, as described in https://www.khronos.org/opengl/wiki/Transparency_Sorting .
I resorted to putting a magic vector vec4(0.0, 1.0, 2.0, 3.0) and then doing a search/replace on the glsl string to insert a discard later, but that's not very robust to changes in the gamma compiler. Is there a better temporary hack? And is support for imperative statements expected in the future or completely out of scope?