Set uniform and animate uniform variables

[Cute3d]

Hi,

I am using Qt3D with plain C++. I can't figure out how to access uniform variables of custom materials with custom shaders.

```
waveAnimation = new QPropertyAnimation(m_custom_material);
waveAnimation->setTargetObject(m_custom_material);
waveAnimation->setPropertyName("height");
waveAnimation->setDuration(80);
waveAnimation->setStartValue(QVariant::fromValue(0.f));
waveAnimation->setEndValue(QVariant::fromValue(40.f));
waveAnimation->setLoopCount(-1);
waveAnimation->start();

I found a class names QShaderData but the documentation was useless for me and I didn't achieve anything with try and error. 
It would be awesome if some could give me a hint ...

[Cute3d]

Alright solved it

[SGaist]

Hi and welcome to devnet,

How did you solve it ?

[Cute3d]

You can access the uniforms with the parameter classes. So for example:

auto boneId = new Qt3DRender::QParameter();
boneId->setName("uBoneId");
boneId->setValue(QVariant(1));
customMaterial->addParameter(boneId);