ColorPicker ignores style.alpha value

[rraggerr]

Version/Branch of Dear ImGui:

Version: 1.73WIP(17203)
Branch: matser

Back-end/Renderer/Compiler/OS

Back-ends: imgui_impl_11.cpp + imgui_impl_win32.cpp
Compiler: VS2019
Operating System: Win10

My Issue/Question:

ColorPicker ignores imgui's global alpha value

Screenshots/Video

Standalone, minimal, complete and verifiable example:

    ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
    ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats representing a color

[ocornut]

A pull request would be appreciated. For the square we draw two layers so we may need to work out an extra factor to the alpha used there to give something close to the expected result (it’s not going to be perfect).

[ocornut]

Pushed change to make this working 90%

Multiple blending layers are making this imperfect but it gives a good enough impression.
There's unfortunately an overlapping glitch with the color wheel:

Which I won't fix right now (I don't know what is the right fix). Seems less problematic since this is not visible by default but eventually we ought to look at this..

Out of curiosity, why are you using the global alpha setting?

[rraggerr]

Pushed change to make this working 90%

Multiple blending layers are making this imperfect but it gives a good enough impression.
There's unfortunately an overlapping glitch with the color wheel:

Which I won't fix right now (I don't know what is the right fix). Seems less problematic since this is not visible by default but eventually we ought to look at this..

Out of curiosity, why are you using the global alpha setting?

when debugging the game, its so comfortable to look at game and imgui's windows at one time, personal thing

[ocornut]

when debugging the game, its so comfortable to look at game and imgui's windows at one time, personal thing

The way people solve that usually is:

• Either have the game display in a smaller windows when they tools are active (using docking or in a floating window)
• Use multi-viewports to have imgui windows not covering game window.