diff options
| -rw-r--r-- | sly/render/utils.scm | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/sly/render/utils.scm b/sly/render/utils.scm index 0146b49..802eca7 100644 --- a/sly/render/utils.scm +++ b/sly/render/utils.scm @@ -26,7 +26,7 @@ #:use-module (ice-9 match) #:use-module (srfi srfi-9) #:use-module (gl low-level) - #:use-module (gl enums) + #:use-module (gl) #:export (make-blend-mode blend-mode? blend-mode-source blend-mode-destination default-blend-mode @@ -78,5 +78,10 @@ ('one-minus-constant-alpha 32772))) (define (apply-blend-mode blend-mode) - (glBlendFunc (source-blend-function (blend-mode-source blend-mode)) - (destination-blend-function (blend-mode-destination blend-mode)))) + (if blend-mode + (begin + (gl-enable (enable-cap blend)) + (glBlendFunc (source-blend-function (blend-mode-source blend-mode)) + (destination-blend-function + (blend-mode-destination blend-mode)))) + (gl-disable (enable-cap blend)))) |