Implement fixes to the distance field renderer

- Change modelView matrix to mvp for sharper texts
- Support global opacity from parents
- Allow changing alpha from the text color picker
- Change shadow color to be the same as the text color

Task-number: QT3DS-3343
Task-number: QT3DS-3363
Change-Id: I37178abe6c9239619a3f9de440d2b9245a138a82
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@qt.io>
Reviewed-by: Tomi Korpipää <tomi.korpipaa@qt.io>

1 files changed, 1 insertions, 2 deletions

diff --git a/src/Runtime/res/effectlib/distancefieldtext_core.vert b/src/Runtime/res/effectlib/distancefieldtext_core.vert
index 1ced295c..ce6a165c 100644
--- a/src/Runtime/res/effectlib/distancefieldtext_core.vert
+++ b/src/Runtime/res/effectlib/distancefieldtext_core.vert
@@ -6,7 +6,6 @@ out vec2 sampleCoord;
 out vec2 alphas;
 
 uniform mat4 mvp;
-uniform mat4 modelView;
 uniform int textureWidth;
 uniform int textureHeight;
 uniform float fontScale;
@@ -37,7 +36,7 @@ vec2 alphaRange(float scale)
 
 void main()
 {
-     float scale = fontScale * sqrt(abs(determinant(modelView)));
+     float scale = fontScale * sqrt(abs(determinant(mvp)));
      alphas = alphaRange(scale);
      sampleCoord = tCoord * vec2(1.0 / float(textureWidth), 1.0 / float(textureHeight));
      gl_Position = mvp * vec4(vCoord, 1.0);