private void CreateScene()
{
List <Shape> allShapes = new List <Shape>(FindObjectsOfType <Shape>());
int numTransforms = FindObjectsOfType <AdvancedTransform>().Length;
int transformIndex = 0;
ShapeData[] shapeData;
TransformData[] transformData = null;
if (allShapes.Count > 0)
{
shapeData = new ShapeData[allShapes.Count];
if (numTransforms > 0)
{
transformData = new TransformData[numTransforms];
}
for (int i = 0; i < allShapes.Count; i++)
{
Shape s = allShapes[i];
Vector3 col = new Vector3(s.color.r, s.color.g, s.color.b);
Matrix4x4 transformationMatrix = (Matrix4x4.Translate(s.Position) * Matrix4x4.Rotate(s.Rotation)).inverse;
List <AdvancedTransform> shapeTransforms = new List <AdvancedTransform>(s.GetComponentsInParent <AdvancedTransform>());
shapeData[i] = new ShapeData()
{
transformation = transformationMatrix,
scale = new Vector3(Mathf.Abs(s.Scale.x), Mathf.Abs(s.Scale.y), Mathf.Abs(s.Scale.z)),
color = col,
shapeType = (int)s.shapeType,
numTransforms = shapeTransforms.Count,
roughness = s.roughness,
metalness = s.metalness
};
if (shapeTransforms.Count > 0)
{
foreach (AdvancedTransform t in shapeTransforms)
{
transformData[transformIndex] = new TransformData()
{
transformType = (int)t.transformType,
scale = t.scale
};
transformIndex++;
}
}
}
rayMarchingShader.SetInt("numShapes", shapeData.Length);
}
else
{
shapeData = new ShapeData[1];
rayMarchingShader.SetInt("numShapes", 0);
}
if (numTransforms == 0)
{
transformData = new TransformData[1];
}
ComputeBuffer shapeBuffer = new ComputeBuffer(shapeData.Length, ShapeData.GetSize());
shapeBuffer.SetData(shapeData);
rayMarchingShader.SetBuffer(0, "shapes", shapeBuffer);
buffersToDispose.Add(shapeBuffer);
ComputeBuffer transformBuffer = new ComputeBuffer(transformData.Length, TransformData.GetSize());
transformBuffer.SetData(transformData);
rayMarchingShader.SetBuffer(0, "advancedTransforms", transformBuffer);
buffersToDispose.Add(transformBuffer);
}