diff options
Diffstat (limited to 'source/blender/draw/modes/shaders/edit_curve_overlay_handle_geom.glsl')
-rw-r--r-- | source/blender/draw/modes/shaders/edit_curve_overlay_handle_geom.glsl | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/source/blender/draw/modes/shaders/edit_curve_overlay_handle_geom.glsl b/source/blender/draw/modes/shaders/edit_curve_overlay_handle_geom.glsl new file mode 100644 index 00000000000..419a25f91b4 --- /dev/null +++ b/source/blender/draw/modes/shaders/edit_curve_overlay_handle_geom.glsl @@ -0,0 +1,79 @@ + +#define ACTIVE_NURB 1 << 7 /* Keep the same value of `ACTIVE_NURB` in `draw_cache_imp_curve.c` */ + +layout(lines) in; +layout(line_strip, max_vertices = 6) out; + +uniform vec2 viewportSize; + +flat in int vertFlag[]; + +flat out vec4 finalColor; + +void main() +{ + /* TODO: vertex size */ + + vec4 v1 = gl_in[0].gl_Position; + vec4 v2 = gl_in[1].gl_Position; + + int is_active_nurb = vertFlag[1] & ACTIVE_NURB; + int color_id = vertFlag[1] ^ is_active_nurb; + + if (is_active_nurb != 0) { + /* draw the outline. */ + vec2 v1_2 = v2.xy - v1.xy; + vec2 offset; + + if (abs(v1_2.x * viewportSize.x) < abs(v1_2.y * viewportSize.y)) { + offset = vec2(2.0 / viewportSize.x, 0.0); + } + else { + offset = vec2(0.0, 2.0 / viewportSize.y); + } + + finalColor = colorActiveSpline; + + gl_Position = v1; + gl_Position.xy += offset * v1.w; + EmitVertex(); + + gl_Position = v2; + gl_Position.xy += offset * v2.w; + EmitVertex(); + + EndPrimitive(); + + gl_Position = v1; + gl_Position.xy -= offset * v1.w; + EmitVertex(); + + gl_Position = v2; + gl_Position.xy -= offset * v2.w; + EmitVertex(); + + EndPrimitive(); + } + + if (color_id == 0) finalColor = colorHandleFree; + else if (color_id == 1) finalColor = colorHandleAuto; + else if (color_id == 2) finalColor = colorHandleVect; + else if (color_id == 3) finalColor = colorHandleAlign; + else if (color_id == 4) finalColor = colorHandleAutoclamp; + else if (color_id == 5) finalColor = colorHandleSelFree; + else if (color_id == 6) finalColor = colorHandleSelAuto; + else if (color_id == 7) finalColor = colorHandleSelVect; + else if (color_id == 8) finalColor = colorHandleSelAlign; + else if (color_id == 9) finalColor = colorHandleSelAutoclamp; + else if (color_id == 10) finalColor = colorNurbUline; + else if (color_id == 11) finalColor = colorNurbSelUline; + else finalColor = colorVertexSelect; + + gl_Position = v1; + EmitVertex(); + + gl_Position = v2; + EmitVertex(); + + EndPrimitive(); +} |