Indexed graphics for retro engine?
DomainName at Email.com
Fri Sep 20 00:28:59 UTC 2019
On Thursday, 19 September 2019 at 23:32:13 UTC, norm wrote:
> On Thursday, 19 September 2019 at 20:47:45 UTC, Shadowblitz16
> I'd create a fragment shader to convert each pixel to 8 bit.
> There are many examples on the web about creating fragment
> shaders and 2d opengl scenes, i.e. a 2d scene where OpenGL
> coordinates are integer pixel coordinates. Once you get that
> you then just implement the conversion routine.
> Using the shader you can render the image as a textured quad
> and send the colour look up table down as an additional 1d
> texture. This way you can have several D arrays for each colour
> table and simply swap the texture buffer pointer to instantly
> switch colours.
> You can also get cool effects this way when you move to 3d
> using 8 bit colour tables.
the issue with using openGL is its complex and hard to get
working with a widget library
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