slideshow: Use gl_ModelViewProjectionMatrix in vertex shaders

ftransform() is deprecated, and we shouldn’t do an extraneous
multiplication to obtain the two matrices together.

Change-Id: Iaa16c106b8b702468f7be643a812107f0967acdd

2 files changed, 2 insertions, 2 deletions

diff --git a/slideshow/opengl/basicVertexShader.glsl b/slideshow/opengl/basicVertexShader.glsl
index da8355465f9d..bd26c1b52115 100644
--- a/slideshow/opengl/basicVertexShader.glsl
+++ b/slideshow/opengl/basicVertexShader.glsl
@@ -32,7 +32,7 @@ varying vec2 v_texturePosition;
 
 void main( void )
 {
-    gl_Position = ftransform();
+    gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
     v_texturePosition = gl_MultiTexCoord0.xy;
 }
 
diff --git a/slideshow/opengl/vortexVertexShader.glsl b/slideshow/opengl/vortexVertexShader.glsl
index 07a00f2aa534..ff86546d24c6 100755
--- a/slideshow/opengl/vortexVertexShader.glsl
+++ b/slideshow/opengl/vortexVertexShader.glsl
@@ -96,7 +96,7 @@ void main( void )
         v_textureSelect = 1;
     }
 
-    gl_Position = gl_ProjectionMatrix * gl_ModelViewMatrix * v;
+    gl_Position = gl_ModelViewProjectionMatrix * v;
 
     v_texturePosition = gl_MultiTexCoord0.xy;
 }