Sphere (Omni) Light with hard shadows...?

[iacdxb]

Hi,

working on scene, needs to show pattern shadow on floor and walls, trying object sphere light but its with soft shadow, shadow fades out after some distance. any idea how can I get hard shadows...?

thanks.
...

[Beanzvision]

Reducing the radius size will harden the shadows, in doing so, you'll lose light intensity but that can always be increased again.

[iacdxb]

thanks for that but I tried a test scene... I dont think its work correct.
edges are soft, and fall off light is not same everywhere, bottom is more, sides are less and middle corner is darker...!
Sphere 1 cm and intensity 120K.... wow.... is this correct...?

Thanks.
...

[iacdxb]

Sphere light something like this...

[Beanzvision]

Alternatively, You could use a standard c4d omni light with hard shadows.

[romullus]

@iacdxb, actually it works physically correct. It's all about relative size and distance between a light source, a mesh that cast shadows and the walls that receive shadows. Look at my attached images. See how shadows not only become sharper, but they also do that more uniformely. In that example everything is exactly the same, except for the mesh size and therefore its distance to the light source and to the walls.

[iacdxb]

Thanks.
...

[iacdxb]

In corona, it will be fixed or will be added new light... any plan or have to use C4D light every time...?

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[Eddoron]

I don't think you understand what Corona is. It's a physical unbiased renderer. If you want hard shadows, then the occluding object has to be farther away from the light source. Just make your occluder big, almost touching the walls and turn off the visibility. done.
If you need non-realistic stuff, stick to biased renderers. Just use the C4D AR. It's still a good engine and you can do such things more easily in that one.