Making A Candle Renderman

In this tutorial, we will be making a candle using the Renderman Shading Language (RSL), and setting up some basic lighting using Renderman’s built-in lighting tools.

We will start by creating a simple primitive candle shape.

candleShape = primitive(“candle”, [1,1,1], $

coneAngle=30, $

nubs=10)

This will create a simple cone-shaped candle with 10 small bumps around the top.

We will then need to give our candle some shading. We can do this by adding a shading group to our primitive.

shadingGroup = new ShadingGroup()

shadingGroup.addShader(“candle_diffuse”, $

new DiffuseShader(“candle.dds”))

shadingGroup.addShader(“candle_specular”, $

new SpecularShader(“candle.dds”))

This will add two shaders to our shading group. The first shader, “candle_diffuse”, will be used to create the diffuse lighting for our candle, and the second shader, “candle_specular”, will be used to create the specular lighting for our candle.

We can now add our shading group to our primitive.

candleShape.setShadingGroup(shadingGroup)

We will also need to add some lighting to our scene. We can do this by creating a new light and adding it to our scene.

light = new Light(“light1”)

light.setPosition([-5,5,0])

light.setShadingModel(LightingModel.PHOTONMAP)

This will create a new light called “light1” and set its position to (-5,5,0). We are also setting the shading model to “PHOTONMAP”, which will allow Renderman to calculate the lighting for our scene.

We can now add our light to our scene.

scene.addLight(light)

We can also add some ambient lighting to our scene.

ambientLight = new AmbientLight(“ambientLight”)

ambientLight.setColor(new Color(0.5,0.5,0.5))

ambientLight.setAttenuation(new Attenuation(1,1,1))

This will add a new ambient light to our scene. We are setting the color of our ambient light to (0.5,0.5,0.5) and the attenuation to (1,1,1), which will make our ambient light fade away as it gets further from the light.

We can now add our ambient light to our scene.

scene.addAmbientLight(ambientLight)

We can now render our scene.

renderer.render(scene, camera)

This will render our scene using the default camera.

We can see that our candle is now shaded and lit. We can also see that the light is casting shadows on our scene.

Table of Contents

Making A Candle In Unreal With Image

Based Lighting

There’s something special and timeless about candles. They provide a warm and natural glow, and they’ve been used for centuries for a variety of purposes.

In this tutorial, we’re going to show you how to make a candle in Unreal Engine 4 using image-based lighting. This will give your candle a realistic look and make it appear to emit light from its flame.

We’ll start by creating a simple scene in Unreal. We’ll then add a candle model and light it up with image-based lighting. Finally, we’ll add some post-processing effects to make the candle look even more realistic.

Let’s get started!

Creating The Scene

First, we need to create a scene in Unreal. We’ll start by creating a new Level and naming it “Candle”.

Next, we need to add a floor and a wall to our scene. We can do this by selecting the Floor and Wall actors from the Modes panel and placing them in the scene.

We’ll also need a light to illuminate our candle. We can do this by selecting the Point Light actor from the Modes panel and placing it in the scene.

We should also add a Camera to the scene. We can do this by selecting the Camera actor from the Modes panel.

We should also set the Scene Lighting to “Image-Based Lighting” in the Viewport Properties. This will allow us to use image-based lighting to light our scene.

Adding The Candle Model

Now that we have our scene set up, we need to add a candle model to it. We can do this by selecting the Candle Model actor from the Modes panel.

We should also position the candle model in the scene. We can do this by selecting the Move tool from the toolbar and moving the candle model to the desired location.

We should also scale the candle model to the desired size. We can do this by selecting the Scale tool from the toolbar and scaling the candle model to the desired size.

Lighting The Candle With Image-Based Lighting

Now that we have our candle model in the scene, we need to light it up with image-based lighting.

First, we need to create a lightmap for our candle model. We can do this by selecting the Candle Model and clicking on the “Create Lightmap” button in the Details panel.

Next, we need to enable image-based lighting for our scene. We can do this by selecting the Scene Lighting option from the Viewport Properties and setting it to “Image-Based Lighting”.

Now, we need to position the lightmap for our candle model. We can do this by selecting the Candle Model and clicking on the “Lightmap Settings” button in the Details panel.