alacritty/res/text.f.glsl

#version 330 core
in vec2 TexCoords;

layout(location = 0, index = 0) out vec4 color;
layout(location = 0, index = 1) out vec4 alphaMask;

uniform sampler2D mask;
uniform vec3 textColor;

void main()
{
    alphaMask = vec4(texture(mask, TexCoords).rgb, 1.);
    color = vec4(textColor, 1.);
}
Render the letter J This letter brought to you by OpenGL and freetype. 2016-02-23 23:42:58 -05:00			`#version 330 core`
			`in vec2 TexCoords;`

Correct sub-pixel font rendering with OpenGL Uses the GL_ARB_blend_func_extended to get single-pass, per-channel alpha blending. gl_generator is now used instead of gl to enable the extension. The background color is removed since that presumably needs to run in a separate pass. 2016-05-21 00:36:28 -04:00			`layout(location = 0, index = 0) out vec4 color;`
			`layout(location = 0, index = 1) out vec4 alphaMask;`

Bit of cleanup - Commend vertex slice - Add helper for binding mask texture (and specify that it's a mask) - Prefix uniform members of ShaderProgram with u_. This makes it easy to identify in the rest of code. 2016-02-24 23:37:17 -05:00			`uniform sampler2D mask;`
Render the letter J This letter brought to you by OpenGL and freetype. 2016-02-23 23:42:58 -05:00			`uniform vec3 textColor;`

			`void main()`
			`{`
Correct sub-pixel font rendering with OpenGL Uses the GL_ARB_blend_func_extended to get single-pass, per-channel alpha blending. gl_generator is now used instead of gl to enable the extension. The background color is removed since that presumably needs to run in a separate pass. 2016-05-21 00:36:28 -04:00			`alphaMask = vec4(texture(mask, TexCoords).rgb, 1.);`
			`color = vec4(textColor, 1.);`
Render the letter J This letter brought to you by OpenGL and freetype. 2016-02-23 23:42:58 -05:00			`}`