Blender Render: point light shines through the object #50253

New Issue

soulfire · 2016-12-15T02:38:08+01:00

soulfire commented

2016-12-15 02:38:08 +01:00

Blender build: 8.Dec
Win 64
Blue point light is located in the center of the object.
As can be seen blue point light (without casting shadows), shines through the object.

brtestbl.blend

Blender build: 8.Dec Win 64 Blue point light is located in the center of the object. As can be seen blue point light (without casting shadows), shines through the object. ![brtest.jpg](https://archive.blender.org/developer/F418017/brtest.jpg) [brtestbl.blend](https://archive.blender.org/developer/F418019/brtestbl.blend)

soulfire commented

2016-12-15 02:38:08 +01:00

Changed status to: 'Open'

soulfire commented

2016-12-15 02:38:08 +01:00

Added subscriber: @TomG

Konstantin commented

2016-12-15 05:44:37 +01:00

Added subscriber: @Ko

Konstantin commented

2016-12-15 05:44:37 +01:00

Shadow for lamp is turned off

Turn off specular to get rid of highlight

Shadow for lamp is turned off Turn off specular to get rid of highlight

soulfire commented

2016-12-15 12:28:43 +01:00

In #50253#408554, @Ko wrote:
Shadow for lamp is turned off

Turn off specular to get rid of highlight

It seems that is the case.
Hm,by turning the specular off, highlight on plane is turned off.

But how is specular calculated on the plane when point light is behind the object?

> In #50253#408554, @Ko wrote: > Shadow for lamp is turned off > > Turn off specular to get rid of highlight It seems that is the case. Hm,by turning the specular off, highlight on plane is turned off. But how is specular calculated on the plane when point light is behind the object?

Konstantin commented

2016-12-15 13:09:36 +01:00

In #50253#408560, @TomG wrote:

In #50253#408554, @Ko wrote:
Shadow for lamp is turned off

Turn off specular to get rid of highlight

It seems that is the case.
Hm,by turning the specular off, highlight on plane is turned off.

But how is specular calculated on the plane when point light is behind the object?

Like in games - in internal renderer specular highlights is very fake effect. Ray Traced shadows helps because they actually cast rays into the scene to find objects which is blocking light.

> In #50253#408560, @TomG wrote: >> In #50253#408554, @Ko wrote: >> Shadow for lamp is turned off >> >> Turn off specular to get rid of highlight > > It seems that is the case. > Hm,by turning the specular off, highlight on plane is turned off. > > But how is specular calculated on the plane when point light is behind the object? Like in games - in internal renderer specular highlights is very fake effect. Ray Traced shadows helps because they actually cast rays into the scene to find objects which is blocking light.

ronan ducluzeau commented

2016-12-16 16:19:54 +01:00

Added subscriber: @zeauro

ronan ducluzeau commented

2016-12-16 16:19:54 +01:00

If you don't want to cast Ray Traced Shadows, you can modify Fall-off settings of the point light.
You can enable sphere option, change the distance or use a custom curve as Fall-off.

Anyways, it is not a bug. It is just the way Blender Render works.

If you don't want to cast Ray Traced Shadows, you can modify Fall-off settings of the point light. You can enable sphere option, change the distance or use a custom curve as Fall-off. Anyways, it is not a bug. It is just the way Blender Render works.

Bastien Montagne commented

2016-12-16 18:12:06 +01:00

Added subscriber: @mont29

Bastien Montagne commented

2016-12-16 18:12:06 +01:00

Changed status from 'Open' to: 'Archived'

Bastien Montagne closed this issue

2016-12-16 18:12:06 +01:00

Bastien Montagne self-assigned this 2016-12-16 18:12:06 +01:00

Bastien Montagne commented

2016-12-16 18:12:06 +01:00

Closing then.

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Blender Render: point light shines through the object #50253