diff options
| -rw-r--r-- | src/glsl/ir_expression_flattening.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/glsl/ir_expression_flattening.cpp b/src/glsl/ir_expression_flattening.cpp index 0b7c537bd8a..bd4ac67bc1a 100644 --- a/src/glsl/ir_expression_flattening.cpp +++ b/src/glsl/ir_expression_flattening.cpp @@ -27,7 +27,10 @@ * Takes the leaves of expression trees and makes them dereferences of * assignments of the leaves to temporaries, according to a predicate. * - * This is used for automatic function inlining, where we want to take + * This is used for breaking down matrix operations, where it's easier to + * create a temporary and work on each of its vector components individually. + * + * It is also used for automatic function inlining, where we want to take * an expression containing a call and move the call out to its own * assignment so that we can inline it at the appropriate place in the * instruction stream. |