void ShaderOnSetConstants(IShader *shader) override
{
shader->SetPixelConstant("rippleScroll", engine->GetRenderUpdater().GetVirtualTime() * 0.02);
// Are we looking in to the sun?
core::vector3df camVec = maths::rotation_to_direction( engine->GetWorld()->GetCamera()->GetRotation() );
sunDirection.normalize();
f32 dp = camVec.dotProduct(sunDirection);
//f32 brightness = 1.f + 0.5 * dp*dp*dp*dp*dp*dp*dp*dp*dp*dp*dp*dp*dp*dp*dp*dp;
f32 brightness = 1.f + 0.5 * dp*dp*dp*dp*dp*dp*dp*dp*dp*dp;
if (brightness < 1.f || camVec.getDistanceFrom(sunDirection) > 1.f)
brightness = 1.f;
brightness = core::lerp(lastBrightness, brightness,
core::clamp(engine->GetRenderUpdater().GetLastDeltaTime(), 0.f, 1.f));
lastBrightness = brightness;
shader->SetPixelConstant("brightness", brightness);
}
