Questions tagged [blender-render]

Please use this tag only for questions related to the render engine; don't use it for questions about Blender's internal code or Python API. Blender Internal (also known as Blender Render, Blender Internal or BI) is a biased rendering engine built into Blender.

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207
votes
3answers
279k views

Can Blender render pngs with the background transparent?

I would like to render an animation as a series of .png images with transparent backgrounds for use in a video. Is this possible?
79
votes
2answers
76k views

How is Cycles different from Blender Internal?

How does Cycles work and how is it different from Blender Internal? Which is better?
50
votes
3answers
5k views

Creating Inky-looking characters in Blender

I'm involved in a project to do with ink animation and experimentation. I found this incredible piece of animation: Chinese Ink Style Animation I originally thought this was some sort of After ...
43
votes
2answers
15k views

How do I convert materials from Blender Internal to Cycles?

I know this may be a tough or confusing question, but I have numerous existing materials I created and reuse for a project, which were all prepared for Blender Internal. Now, I want to start the ...
22
votes
3answers
24k views

How can I get a Depth of field render pass?

How can one make a render pass with black and white data to display depth of field based on the Settings > Camera dof settings? I want to blur or defocus in the compositor, similar to the way it is ...
21
votes
3answers
43k views

Rotate object texture

I have created this sign, but when I added the red texture to the face, the texture turned out sideways. Is there a way to rotate it? The original image is the right way up. In the texture settings ...
18
votes
3answers
23k views

Rendering with wireframe

I'm making figures to illustrate some details about how meshes work. I'd like to render my scene normally, but overlay all of my meshes in wire mode. The only solution I've found which works is ...
18
votes
1answer
20k views

Render shadow on transparent background with Blender Render [duplicate]

I need to render a model on a transparent background. The models have a light source so they should be casting a shadow on a surface (the XY plane). The purpose for this is to overlay the rendered ...
17
votes
3answers
5k views

Can I use Cycles materials with Blender Internal?

Is it possible to have a mesh coloured and textured in cycles and then have it displayed in internal? The only reason I ask is because I am building a log cabin and want to put some windows in. When ...
16
votes
1answer
19k views

Matcap materials as a material for render?

Is it possible to use Matcap materials as an actual material for a model so that I can render with it? There are certain parts that I want to apply specific Matcaps textures to but I want to actually ...
16
votes
1answer
2k views

Is there a way to have one material for cycles and the BI

Is there any way to make a material work in cycles and the blender internal? I'm looking for a way to have only one material in the material slot, but a different material for cycles and blender ...
15
votes
1answer
43k views

How do i add material/textures to only one face of an object? [duplicate]

I just got Blender and I don't know how to add textures to only one side. I've tried finding an answer but i can't. It adds the texture to all sides of the object. I just want the blue on one side of ...
14
votes
3answers
3k views

Will Cycles eventually replace Blender Internal?

I remember reading (I can't remember where though), that the Blender Internal render engine had become difficult to maintain and is not based on a modern architecture (hence - Cycles was created). My ...
14
votes
2answers
9k views

What are the differences between lamps in Cycles and Blender Internal?

I've noticed that if I have an existing scene setup for Blender Internal and I switch to cycles, the lighting is completely off. I sometimes have had to start a new scene and import the models I want ...
14
votes
3answers
16k views

Baking normal maps in blender: “Error: No objects or images found to bake to”

This happens pretty much every time I try to bake normal maps. It's quite a broad error message and I still don't know exactly what the problems I'm having are, only that if I keep clicking things for ...
13
votes
6answers
11k views

Python - Set material to material slot

I am using the Blender Internal render engine. I have an material slot with no material assigned to it. How can I assign a material to a slot using python? This should work in edit mode as well. ...
13
votes
3answers
5k views

I get a “Width not divisible by 2” error when I render

I can't seem to figure out what this is talking about. I've tried to change my settings, but nothing works. This is what it says. These are my settings. I can't find anything that is 1171x658.
12
votes
3answers
1k views

How to create a long shadow icon?

I am trying to create a flat/modern looking icon. The visual style I am aiming for is Here is what I got so far with my icon. As you can see it is missing the fake shading and fake shadow. Is there ...
11
votes
2answers
4k views

How can I move the horizon line?

I used world texture to make the sky in my scene, but when I render it, there is a gap from sky to objects in the scene. This is what I mean: How can I move down the horizon line? Is there another ...
11
votes
1answer
1k views

texture preview for displacement in Cycles?

Why, when I'm using the Blender internal renderer, can I see my procedural texture (for my displacement), but, when I'm using Cycles render, I cannot? It's not like I want the procedural texture for ...
10
votes
4answers
17k views

Smoke Generator does not work

When I try to run the smoke simulator in Blender 2.62 I get no smoke at all. When I attempt to render, the only output is a black screen. What am I doing wrong here that is making the smoke simulation ...
10
votes
2answers
1k views

What are nodes, and how do I use them?

I'm a bit new to Blender, and in trying to learn more, I've stumbled across nodes. What are nodes, and how do I use them?
10
votes
3answers
5k views

How to pick target texture image for baking?

I'm trying to bake bump maps into normal maps. I am having problems with the baking process in that it seems to arbitrarily select the image that the bake renders to. Sometimes it bakes to the ...
10
votes
2answers
3k views

Light reflection and refraction in Blender Internal?

I have noticed when trying to make a mirror in Blender that it does not reflect light onto other objects properly. Also, it seems that setting the IOR (Index of Refraction) for transparent objects ...
10
votes
1answer
417 views

Rendering artifacts in blender internal

I'm experimenting with drawing textures onto the model. I'm trying to render what I've got so far, but my renders come out with these strange black or white rectangles all the way down the blade edge. ...
10
votes
2answers
602 views

How does Blender Internal work?

I know that Blender Internal is a scanline renderer, but how exactly does it work? When compared to Cycles, it's much less accurate, but much faster; Also, it doesn't have the concept of sampling, so, ...
10
votes
2answers
10k views

Not render sky texture?

I'm using a sky texture for environmental lightning. It gets rendered as background when I do that. Can I prevent it from rendering, but still use it for environmental lightning?
10
votes
3answers
2k views

Reducing the size of shadows

I am looking to reduce the size of the shadow being cast on the mesh in the background.. I have only one light which is a sun lamp with ray shadow on, the mesh i have receive, receive transparent and ...
10
votes
1answer
8k views

How to make a sky environment map?

If I have a scene that I want to add a bounding box to that makes it look like it is outside during the day. In the past I have just added a big UV Sphere to my scene that surrounds the entire scene ...
9
votes
1answer
1k views

How can I make a rounded indentation on a cylinder?

I'm trying to do a cosmetic bottle in blender but i don't how to do this thing in the image. How to do this round edge on the cap. Can anyone help me?
9
votes
1answer
2k views

Sine wave using only Math nodes?

For the purpose of animating materials, is there a way to construct a sine wave function out of Math nodes? A while back I asked about how to do something similar with scripted driver expressions. ...
9
votes
1answer
9k views

How do you create grass?

If you were using a plane as a terrain, how would you add grass to the plane and make it bend and flow like there was wind. Also, how would you make the grass color vary in shades of green so you ...
9
votes
4answers
35k views

Why is the alpha channel not working?

I was trying to make a really low poly flower, basically using 2D planes and applying textures with an alpha channel (Targa, 32 bit). However when doing the UV mapping and applying the texture as ...
9
votes
1answer
7k views

How to animate light's energy

I'm new to animation with blender, I can animate the rotation, position and scale of a light, but not the energy that it emits. Can anyone tell me how to animate the Energy value?
9
votes
4answers
17k views

Smoke not showing up in render?

I am using 3 layers, a tornado (flow physics particle), some text that was converted into mesh so it could explode and get sucked in by the tornado. I also have a surface plane which is the only thing ...
9
votes
1answer
10k views

How to set render engine in blender?

I'm new to blender. How do you change the render engine in blender 2.7 ? According to this video, the button should be along the top. I've searched google, and the blender documentation with no luck....
9
votes
2answers
14k views

Convert Materials from Cycles to Blender Internal Render

I want to use Freestyle for a scene with lots of different Cycles Materials, is there an easy way to change them all at once to Blender Internal? It would be nice if the materials are somehow ...
9
votes
1answer
9k views

How do I apply an environment map in Blender Internal?

I'm using Blender Internal due to its object outline effect, and am trying to use a 1800 degree environment map for the reflections (not lighting). I'm trying what seems like should work, and am ...
9
votes
2answers
1k views

Can we render a sky layer with transparent layers?

I am using a transparent alpha in the shading menu, while rendering my layers, so I can later composite them together. Question is, is there something like a sky ...
9
votes
1answer
1k views

Making edges render with Cycles

I'm using the Laplacian Lightning Generator, and have figured out how to make the generated lightning renderable in Blender Internal. While I (probably?) could use this, there's a few issues with me ...
9
votes
1answer
622 views

Mesh generation from PointCloud?

The figure bleow is the pointcloud imported as .ply file into blender. However, I would like to perform triangulation on it to produce the surface as seen in picture below(Accomplished using ...
8
votes
2answers
500 views

Is knowing the Blender internal renderer settings for materials and textures important for using the Cycles renderer?

I have been learning Blender for the past several months, and I just discovered the Blender 3D: Noob to Pro wikibook. Although I'm not a complete novice, I have started from the beginning of the book ...
8
votes
3answers
614 views

Render separate “back part” and “front part” so I can place something in between in other program?

Imagine a spinning rings like the animation in this page http://en.wikipedia.org/wiki/Gimbal_lock If I planned to have my 2D character floating at the center and apply some crazy effects with After ...
8
votes
1answer
3k views

Is it possible to render outlines in BI/Cycles using this technique for the BGE?

I want to achieve this outline effect outside of the game engine for animations, without using freestyle. Is it possible to make this effect work in Cycles or BI?
8
votes
1answer
19k views

Texture mapping with multiple UV maps

So, as a newbie relatively new to blender, I started doing some texture mapping (blender internal Render). I created a texture for the main object and a couple of transparent decals to decorate it. (...
8
votes
1answer
641 views

How can I make a coil with relief (volute)?

I'm trying to model a facade of an arch and I need to create a spiral as shown in these two photos. I tried using the addon "Add curve: Extra objects" to create the spiral but I can not remove the ...
8
votes
1answer
11k views

Rendering and materials are black

This questions has already been asked a million times, but nothing solved my issue so far. Situation I'm using Blender 2.72b. I'm not using nodes, just the plain old vanilla settings. But ...
8
votes
1answer
1k views

Which parts of Blender use OpenGL?

This may seem like a stupid question, but I am really not clear about its answer. I want to know what role OpenGL plays inside Blender: is it just for displaying the user interface, or does the ...
8
votes
1answer
5k views

Boolean - subtract multiple objects from one with only one boolean modifier

Is there a way to subtract multiple objects from one using single boolean modifier? For example I have a wall, and I need to make multiple holes in it for windows. I wanted to parent an object that ...
8
votes
1answer
903 views

Does Blender keep a log when it's rendering?

Does Blender keep a log when it's rendering? Specifically, does it track when the render started, how long each frame took, etc.? I'm super curious about this information.