private void LoadLightData()
{
List <Light> allLights = new List <Light>(FindObjectsOfType <Light>());
LightData[] lightData;
if (allLights.Count > 0)
{
lightData = new LightData[allLights.Count];
for (int i = 0; i < allLights.Count; i++)
{
Light l = allLights[i];
Vector3 radiance = new Vector3(l.color.r, l.color.g, l.color.b) * l.intensity * 2;
radiance = Vector3.Scale(radiance, radiance);
lightData[i] = new LightData()
{
position = l.type == LightType.Directional ? l.transform.forward : l.transform.position,
isDirectional = l.type == LightType.Directional ? (byte)1 : (byte)0,
radiance = radiance
};
}
rayMarchingShader.SetInt("numLights", lightData.Length);
}
else
{
lightData = new LightData[1];
rayMarchingShader.SetInt("numLights", 0);
}
ComputeBuffer lightBuffer = new ComputeBuffer(lightData.Length, LightData.GetSize());
lightBuffer.SetData(lightData);
rayMarchingShader.SetBuffer(0, "lights", lightBuffer);
buffersToDispose.Add(lightBuffer);
}
void SetupLights()
{
List <Light> lights = new List <Light>(FindObjectsOfType <Light>());
LightData[] lightData = new LightData[lights.Count];
for (int i = 0; i < lights.Count; ++i)
{
var light = lights[i];
Vector3 intensity = new Vector3(light.color.r, light.color.g, light.color.b) * light.intensity;
lightData[i] = new LightData()
{
position = light.type == LightType.Directional ? light.transform.forward : light.transform.position,
intensity = intensity,
isDirectional = light.type == LightType.Directional ? 1:0
};
}
ComputeBuffer lightBuffer = new ComputeBuffer(lightData.Length, LightData.GetSize());
lightBuffer.SetData(lightData);
raymarcherShader.SetBuffer(0, "lights", lightBuffer);
raymarcherShader.SetInt("numLights", lightData.Length);
buffers.Add(lightBuffer);
}
void CreateScene()
{
List <Shape> allShapes = new List <Shape> (FindObjectsOfType <Shape> ());
allShapes.Sort((a, b) => a.operation.CompareTo(b.operation));
List <Shape> orderedShapes = new List <Shape> ();
for (int i = 0; i < allShapes.Count; i++)
{
// Add top-level shapes (those without a parent)
if (allShapes[i].transform.parent == null)
{
Transform parentShape = allShapes[i].transform;
orderedShapes.Add(allShapes[i]);
allShapes[i].numChildren = parentShape.childCount;
// Add all children of the shape (nested children not supported currently)
for (int j = 0; j < parentShape.childCount; j++)
{
if (parentShape.GetChild(j).GetComponent <Shape> () != null)
{
orderedShapes.Add(parentShape.GetChild(j).GetComponent <Shape> ());
orderedShapes[orderedShapes.Count - 1].numChildren = 0;
}
}
}
}
ShapeData[] shapeData = new ShapeData[orderedShapes.Count];
for (int i = 0; i < orderedShapes.Count; i++)
{
var s = orderedShapes[i];
Vector3 col = new Vector3(s.colour.r, s.colour.g, s.colour.b);
shapeData[i] = new ShapeData()
{
position = s.Position,
scale = s.Scale, colour = col,
shapeType = (int)s.shapeType,
operation = (int)s.operation,
blendStrength = s.blendStrength * 3,
numChildren = s.numChildren
};
}
int kernelHandle = raymarching.FindKernel("CSMain");
ComputeBuffer shapeBuffer = new ComputeBuffer(shapeData.Length, ShapeData.GetSize());
shapeBuffer.SetData(shapeData);
raymarching.SetBuffer(kernelHandle, "shapes", shapeBuffer);
raymarching.SetInt("numShapes", shapeData.Length);
buffersToDispose.Add(shapeBuffer);
// do lights
LightData[] lightData = new LightData[lightSources.Length];
// get positions of lights
for (int i = 0; i < lightSources.Length; i++)
{
lightData[i] = new LightData()
{
position = lightSources[i].transform.position,
pointLight = lightSources[i].type != LightType.Directional ? 1 : 0,
scale = Vector3.one
};
}
ComputeBuffer lightBuffer = new ComputeBuffer(lightData.Length, LightData.GetSize());
lightBuffer.SetData(lightData);
raymarching.SetBuffer(kernelHandle, "lights", lightBuffer);
raymarching.SetInt("numLights", lightData.Length);
buffersToDispose.Add(lightBuffer);
// do depth texture
// Get (update only if necessary, check for null)
// RenderTexture depth = Shader.GetGlobalTexture( "_CameraDepthTexture" ) as RenderTexture;
// Texture gBuffer2 = Shader.GetGlobalTexture( "_CameraGBufferTexture2" );
// Set
// int kernelHandle = raymarching.FindKernel("CSMain");
// raymarching.SetTextureFromGlobal(kernelHandle, Shader.PropertyToID("_CameraDepthTexture"), Shader.PropertyToID("_CameraDepthTexture"));
// raymarching.SetTexture( 0, "_CameraGBufferTexture2", gBuffer2 );
// raymarching.SetTextureFromGlobal(0, "_DepthTexture", "_CameraDepthTexture");
}
