Glass Transparency Seems Dark I rendered this glass material, however, the transparency of the glass is  darker than what I was looking for.
I tried to increase the light bounce number but it didn't work.
How can I achieve glass material that looks like this?


EDIT
The engine is in Cycles,here's my blender file, base color is pure white but it still appears grainy.
file
In the Principled BSDF shader, the default Base Color is a very light gray. To make sure the surface absorbs no light, set the Base Color to pure white.
(If you are using the Glass BSDF shader, make sure its color is white as well)
I'm assuming you have a simple 1-node shader setup. If you have something more complex, it is possible that the other materials are affecting the transparency color as well. Make sure you aren't mixing the material with a darker material in a mix node or similar.
Also check that there is no volume absorption shader set on the material. This can cause it to appear darker as well.