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blender-archive/source/blender/gpu/shaders/gpu_shader_gpencil_stroke_frag.glsl
Antonio Vazquez 66da2f537a New Grease Pencil object for 2D animation
This commit merge the full development done in greasepencil-object branch and include mainly the following features.

- New grease pencil object.
- New drawing engine.
- New grease pencil modes Draw/Sculpt/Edit and Weight Paint.
- New brushes for grease pencil.
- New modifiers for grease pencil.
- New shaders FX.
- New material system (replace old palettes and colors).
- Split of annotations (old grease pencil) and new grease pencil object.
- UI adapted to blender 2.8.

You can get more info here:

https://code.blender.org/2017/12/drawing-2d-animation-in-blender-2-8/
https://code.blender.org/2018/07/grease-pencil-status-update/

This is the result of nearly two years of development and I want thanks firstly the other members of the grease pencil team: Daniel M. Lara, Matias Mendiola and Joshua Leung for their support, ideas and to keep working in the project all the time, without them this project had been impossible.

Also, I want thanks other Blender developers for their help, advices and to be there always to help me, and specially to Clément Foucault, Dalai Felinto, Pablo Vázquez and Campbell Barton.
2018-07-31 10:50:43 +02:00

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337 B
GLSL

in vec4 mColor;
in vec2 mTexCoord;
out vec4 fragColor;
void main()
{
const vec2 center = vec2(0, 0.5);
vec4 tColor = vec4(mColor);
/* if alpha < 0, then encap */
if (mColor.a < 0) {
tColor.a = tColor.a * -1.0;
float dist = length(mTexCoord - center);
if (dist > 0.25) {
discard;
}
}
/* Solid */
fragColor = tColor;
}