How to render roof. Newbie

[bkjernis]

I have a simple model I am testing to see how octane maps a simple asphalt shingle image texture to a roof.How do I get a render out of this model and texture. What steps do I take. Does the upper material slot have to read the same as the slot under Surface? Mine reads Certainteed in the bottom under Surface but not at the top. In rhino I applied planar mapping. What should I choose in octane. What should I choose under transform and what should I choose under projection? If you look at the rhino picture you will se how the shingles on the eyebrow dormer are lined up with the rest of the roof. That is what I am trying to accomplish. If this can be done in octane for blender I assume it can be done in octane for rhino3d. I will then also purchase the rhino plugin.

[Saramary]

Hi bkjernis,
It will be easier to help you if you share your scene.

[Saramary]

First of all, you should pay more attention to your objects' geometry. Now they look very untidy with a lot of extra edges and double vertexes. Secondly, you can avoid a lot of future issues if you apply scale to all objects which were scaled (select an object - CTRL+A).

Now about your scene. (I use my own roofing texture working with your scene)

1. You didn't create a material. For example, let's take a look at your Material.005. First af all, you should read at the manual how to create a material. Right now you connected the Octane Image Tex node to the Material Output node and totally forgot about an Octane Shader node.
2. You didn't assign materials to your objects. Select an object - Edit Mode - in Material select your material or sub-material - Assign.
3. You can use your UVmap, but you have to adjust it properly - improve a scale and rotation of the middle part of the roof and check the position of separate parts of the UVmap to each other.
4. You don't need any Blender lights, Octane use its own.

I would advise you to improve the geometry at your scene firstly and only after that start working with other settings of the scene, such as materials and lightning.

[bkjernis]

Saramary, the walls and roof were brought into rhino from a cad program, the sloped dormer sheath or cap were modeled in rhino w/o getting rid of the spline afterwards. My objective here is to get the shingles applied evenly across the whole roof. They should look like a holographic image was projected onto the surface as in my picture of the roof with textures applied in rhino. Please double click on that image to see how all the shingles look the same size. In your image the textures on the eyebrow and the flat roof are different. The tiles are different sizes.Can the image file I provided you with be applied in octane or do I have to create my own materials and textures?

[Saramary]

As I said before, it's all about the correct geometry. I didn't correct your roof at first time as I just didn't want to spend too much time on it. After correction it looks ok.

[bkjernis]

Samary as you can see you only have partial shingles on the top of the eyebrow dormer. As I said the shingles have to go on using a projection method so you have full shingles as in my rhino photo. I used planar mapping in rhino. I don't know what they call it in octane. The shingles need to look like mine. In rhino's built in mapper it was a matter of setting a few perameters. It should be able to be done in octane for blender. Can you consult with someone else even if you don't know the answer. Thanks

[bkjernis]

In rhino I did not have to change the geometry. I joined the eyebrow dormer cap to the main roof and did rhino planar mapping and it worked.It has something to do with projection mapping. 1 I applied planar mapping in rhino, I clicked on bounding box,I clicked on cplane, I clicked on uv, I chose mapping channel
one and then I applied my materials.

[Saramary]

I don't need to consult with anybody. On the previous image I made it to look like a real roof. If you like it distorted - here you are.
Happy blending.

[bkjernis]

Why does my texture apply only to my main roof and not the dormer? How do I resize the shingles?

[bkjernis]

Why do I have a black image editor that reads no net gpu's now?