Rpc with no shadow

Hullo,

I am not able to obtain shadow while rendering tree rpc models within SU 7 Pro.

Is there any possibility to make some adjustment?

I would appreciate any helpful information.

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Permalink Reply by Render Plus on September 10, 2010 at 11:52am

RPC models may not cast shadows properly in SketchUp.

Do they work properly inside our renderer?

Can you post an image?

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Permalink Reply by Artur Chojnacki on September 10, 2010 at 12:37pm

Thank you for your prompt response. Alas, the cast shadow of rpc trees does not appear inside the renderer (final product).
I am aware of simplified shadow form casting within SU (rpc models).

Attached-please-find an image rendered.

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Permalink Reply by Rich Hart on September 10, 2010 at 5:47pm

I know we do some things to different types of RPCs that are really just images from a certain angle, to make them cast some sort of a shadow.

I'm wondering if this if a "type" that we haven't seen before.

// The RPCapi::Content represents the type of content
// of an RPC. The current types of content are
// 2D, 2.5D, 3D, 3.5D, and Smart.

Is this an RPC that you can send us to test, or is it one we would have to download from ArchVision or somewhere else?

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Permalink Reply by Artur Chojnacki on September 12, 2010 at 10:41am

I use standard rpc models dowloaded from ArchVision site via All Access utility.

In this very case I have applied a model called RPC_Hawthorn from Trees (General) group.

I have noticed the cast shadow problem in all tree models.
Making some tests I have found that direction of shadow make some difference, ie if shadow is directed behind the model the program 'more easily' generate the shadow.

Hope finding the clue,

AC

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Permalink Reply by Render Plus on September 12, 2010 at 10:47am

When we place an RPC 2D tree, we face it towards the camera.

It will cast a shadow for the sun which is in front of or behind the camera. But when the sun is at 90 degrees to the camera line, the shadow is too thin to see.

We are checking with the nXt Engine programmer to see if he has any ideas. Otherwise we will offwe you an option to place the tree as a criss-cross (parallel and perpendicular to the eye, not at 45 degrees as in SketchUp) and this may work better for shadows.

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Permalink Reply by Artur Chojnacki on September 12, 2010 at 10:55am

Thank you for your response.
One observation though: do you notice the difference between shadows at the picture above?
The same models (trees) same angle, etc, The difference (The very left tree and ones on the right side) is quite strong, isn't it?

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Permalink Reply by Rich Hart on September 13, 2010 at 8:06am

The RPC trees are placed for rendering facing toward the camera eye, so they are placed at different angles in the rendering, with the one on the left facing more directly toward the sun. I believe that is why is has a larger shadow.

Artur Chojnacki said:

Thank you for your response.
One observation though: do you notice the difference between shadows at the picture above?
The same models (trees) same angle, etc, The difference (The very left tree and ones on the right side) is quite strong, isn't it?