Hello everyone , i was thinking of a way to render bounding lines ( like vector renderer wren or viewport hidden line render or everything else ) , but with a special effect . lines with different width and different intensity . like drawing a line with ink and a round brush . anyone has an idea for this ? is it possible ?
i add an image drawn by pencil to express what i mean …
thanks you
Rendering bounding lines with different width and intensity
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- Talebinezhad
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- Klockworks
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- aiworks
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Hi,
AFAIK, it is fully doable, but requires some vex/vop work in shaders.
I can't point you to any specific piece of documentation for mantra, but I recall that in one of the basic Renderman/RSL books there was a recipe for similar effect. It is called overpainting, and, in brief, it is achieved by sampling the render color (e.g. as output by wren) and then replacing it with a piece of a brush-like bitmap texture.
Cheers,
Greg
AFAIK, it is fully doable, but requires some vex/vop work in shaders.
I can't point you to any specific piece of documentation for mantra, but I recall that in one of the basic Renderman/RSL books there was a recipe for similar effect. It is called overpainting, and, in brief, it is achieved by sampling the render color (e.g. as output by wren) and then replacing it with a piece of a brush-like bitmap texture.
Cheers,
Greg
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- Talebinezhad
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aiworksthank you ,very useful guide i will search for it.
Hi,
AFAIK, it is fully doable, but requires some vex/vop work in shaders.
I can't point you to any specific piece of documentation for mantra, but I recall that in one of the basic Renderman/RSL books there was a recipe for similar effect. It is called overpainting, and, in brief, it is achieved by sampling the render color (e.g. as output by wren) and then replacing it with a piece of a brush-like bitmap texture.
Cheers,
Greg
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- Talebinezhad
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Klockworksthank you ,its a good idea … but i think working with shaders is closer to my needs.
Well the easiest solution would be put whatever you want into the input of a box. This will resize the box to fit the bounds of your object. Next you can use either a poly wire to get real thick wires or an ends to destroy all the polygons and keep edges(which you can render).
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- liuxiaolin
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TalebinezhadKlockworksthank you ,its a good idea … but i think working with shaders is closer to my needs.
Well the easiest solution would be put whatever you want into the input of a box. This will resize the box to fit the bounds of your object. Next you can use either a poly wire to get real thick wires or an ends to destroy all the polygons and keep edges(which you can render).
i think you can use instance or delayed-load procedural shader.
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