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Diffstat (limited to 'source/blender/gpu/shaders/gpu_shader_gpencil_stroke_vert.glsl')
-rw-r--r-- | source/blender/gpu/shaders/gpu_shader_gpencil_stroke_vert.glsl | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/source/blender/gpu/shaders/gpu_shader_gpencil_stroke_vert.glsl b/source/blender/gpu/shaders/gpu_shader_gpencil_stroke_vert.glsl new file mode 100644 index 00000000000..5f4f56dcca1 --- /dev/null +++ b/source/blender/gpu/shaders/gpu_shader_gpencil_stroke_vert.glsl @@ -0,0 +1,33 @@ +uniform mat4 ModelViewProjectionMatrix; +uniform mat4 ProjectionMatrix; + +uniform float pixsize; /* rv3d->pixsize */ +uniform float pixelsize; /* U.pixelsize */ +uniform int keep_size; +uniform float objscale; +uniform int pixfactor; + +in vec3 pos; +in vec4 color; +in float thickness; + +out vec4 finalColor; +out float finalThickness; + +#define TRUE 1 + +float defaultpixsize = pixsize * pixelsize * (1000.0 / pixfactor); + +void main(void) +{ + gl_Position = ModelViewProjectionMatrix * vec4( pos, 1.0 ); + finalColor = color; + + if (keep_size == TRUE) { + finalThickness = thickness; + } + else { + float size = (ProjectionMatrix[3][3] == 0.0) ? (thickness / (gl_Position.z * defaultpixsize)) : (thickness / defaultpixsize); + finalThickness = max(size * objscale, 1.0); + } +} |