forked from mia/Aegisub
43 lines
1 KiB
Lua
43 lines
1 KiB
Lua
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function render_frame(f, t)
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--local surf = cairo.image_surface_create(200,200,"argb32")
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local surf = f.create_cairo_surface()
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local ctx = surf.create_context()
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ctx.set_source_rgba(1, 0.5, 0.5, 0.75)
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ctx.move_to(10, 10)
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ctx.line_to(10, 200)
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ctx.line_to(300, 10)
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ctx.close_path()
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ctx.fill_preserve()
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ctx.set_source_rgba(0,0,0,1)
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ctx.stroke()
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ctx.push_group()
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ctx.select_font_face("Arial", "italic", "")
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ctx.set_font_size(35)
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ctx.move_to(100,100)
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ctx.text_path(string.format("Time: %.3fs", t))
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ctx.set_source_rgba(0,1,0,0.8)
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ctx.set_line_width(4)
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ctx.stroke_preserve()
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ctx.set_source_rgba(0,0,1,1)
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ctx.fill()
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ctx.pop_group_to_source()
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ctx.paint_with_alpha(0.5)
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f.overlay_cairo_surface(surf, 0, 0)
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surf = cairo.image_surface_create(400, 200, "argb32")
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ctx = surf.create_context()
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ctx.select_font_face("Arial", "", "bold")
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ctx.set_source_rgba(1, 1, 1, 1)
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ctx.set_font_size(40)
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ctx.move_to(100, 100)
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ctx.text_path("OverLua")
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ctx.fill()
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raster.gaussian_blur(surf, (1-math.cos(t*10))*2)
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f.overlay_cairo_surface(surf, 200, 50)
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end
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