aboutsummaryrefslogtreecommitdiffstats
path: root/src/declarative/particles/defaultshaders/simplevertex.shader
diff options
context:
space:
mode:
Diffstat (limited to 'src/declarative/particles/defaultshaders/simplevertex.shader')
-rw-r--r--src/declarative/particles/defaultshaders/simplevertex.shader6
1 files changed, 2 insertions, 4 deletions
diff --git a/src/declarative/particles/defaultshaders/simplevertex.shader b/src/declarative/particles/defaultshaders/simplevertex.shader
index b7542e660e..1c07363505 100644
--- a/src/declarative/particles/defaultshaders/simplevertex.shader
+++ b/src/declarative/particles/defaultshaders/simplevertex.shader
@@ -1,16 +1,13 @@
attribute highp vec2 vPos;
-attribute highp vec2 vTex;
attribute highp vec4 vData; // x = time, y = lifeSpan, z = size, w = endSize
attribute highp vec4 vVec; // x,y = constant speed, z,w = acceleration
uniform highp mat4 qt_Matrix;
uniform highp float timestamp;
-varying highp vec2 fTex;
varying lowp float fFade;
void main() {
- fTex = vTex;
highp float size = vData.z;
highp float endSize = vData.w;
@@ -21,8 +18,9 @@ void main() {
if (t < 0. || t > 1.)
currentSize = 0.;
+ gl_PointSize = currentSize;
+
highp vec2 pos = vPos
- - currentSize / 2. + currentSize * vTex // adjust size
+ vVec.xy * t * vData.y // apply speed vector..
+ 0.5 * vVec.zw * pow(t * vData.y, 2.);