diff options
Diffstat (limited to 'source/blender/draw/engines/gpencil/shaders/gpencil_point_frag.glsl')
-rw-r--r-- | source/blender/draw/engines/gpencil/shaders/gpencil_point_frag.glsl | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/source/blender/draw/engines/gpencil/shaders/gpencil_point_frag.glsl b/source/blender/draw/engines/gpencil/shaders/gpencil_point_frag.glsl new file mode 100644 index 00000000000..0d6d2b22a55 --- /dev/null +++ b/source/blender/draw/engines/gpencil/shaders/gpencil_point_frag.glsl @@ -0,0 +1,49 @@ +uniform int color_type; +uniform int mode; +uniform sampler2D myTexture; + +in vec4 mColor; +in vec2 mTexCoord; +out vec4 fragColor; + +#define texture2D texture + +#define GPENCIL_MODE_LINE 0 +#define GPENCIL_MODE_DOTS 1 +#define GPENCIL_MODE_BOX 2 + +/* keep this list synchronized with list in gpencil_engine.h */ +#define GPENCIL_COLOR_SOLID 0 +#define GPENCIL_COLOR_TEXTURE 1 +#define GPENCIL_COLOR_PATTERN 2 + +void main() +{ + vec2 centered = mTexCoord - vec2(0.5); + float dist_squared = dot(centered, centered); + const float rad_squared = 0.25; + + // round point with jaggy edges + if ((mode != GPENCIL_MODE_BOX) && (dist_squared > rad_squared)) + discard; + + vec4 tmp_color = texture2D(myTexture, mTexCoord); + + /* Solid */ + if (color_type == GPENCIL_COLOR_SOLID) { + fragColor = mColor; + } + /* texture */ + if (color_type == GPENCIL_COLOR_TEXTURE) { + fragColor = texture2D(myTexture, mTexCoord); + /* mult both alpha factor to use strength factor with texture */ + fragColor.a = min(fragColor.a * mColor.a, fragColor.a); + } + /* pattern */ + if (color_type == GPENCIL_COLOR_PATTERN) { + vec4 text_color = texture2D(myTexture, mTexCoord); + fragColor = mColor; + /* mult both alpha factor to use strength factor with color alpha limit */ + fragColor.a = min(text_color.a * mColor.a, mColor.a); + } +} |