Metal: Make GLSL shader source MSL compliant also

Metal shading language follows the C++ 14 standard and in some cases requires a greater level of explicitness than GLSL. There are also some small language differences:

- Explicit type-casts (C++ requirements)
- Explicit constant values (C++ requirements, e.g. floating point values using 0.0 instead of 0).
- Metal/OpenGL compatibility paths
- GLSL Function prototypes
- Explicit accessors for vector types when sampling textures.

Authored by Apple: Michael Parkin-White

Ref T96261

Reviewed By: fclem

Maniphest Tasks: T96261

Differential Revision: https://developer.blender.org/D14378

1 files changed, 2 insertions, 2 deletions

diff --git a/source/blender/draw/engines/workbench/shaders/workbench_transparent_resolve_frag.glsl b/source/blender/draw/engines/workbench/shaders/workbench_transparent_resolve_frag.glsl
index a2c45d2f8e3..35bea830bac 100644
--- a/source/blender/draw/engines/workbench/shaders/workbench_transparent_resolve_frag.glsl
+++ b/source/blender/draw/engines/workbench/shaders/workbench_transparent_resolve_frag.glsl
@@ -9,8 +9,8 @@ void main()
   /* Revealage is actually stored in transparentAccum alpha channel.
    * This is a workaround to older hardware not having separate blend equation per render target.
    */
-  vec4 trans_accum = texture(transparentAccum, uvcoordsvar.st);
-  float trans_weight = texture(transparentRevealage, uvcoordsvar.st).r;
+  vec4 trans_accum = texture(transparentAccum, uvcoordsvar.xy);
+  float trans_weight = texture(transparentRevealage, uvcoordsvar.xy).r;
   float trans_reveal = trans_accum.a;
 
   /* Listing 4 */