private static void AppendFlatDoubleSidedTriangleVerticesToModel(
float leftSegmentFraction,
float rightSegmentFraction,
ModelColorationType modelColoration,
Matrix4x4 placementMatrix,
ref List <SwarmShaderSwarmerModelVertex> inoutSwarmerModelVertices)
{
Vector3 forwardPosition = Vector3.forward;
Vector3 rightPosition = (Quaternion.AngleAxis(120.0f, Vector3.up) * forwardPosition);
Vector3 leftPosition = (Quaternion.AngleAxis(-120.0f, Vector3.up) * forwardPosition);
Vector4 topFacetColor;
Vector4 bottomFacetColor;
switch (modelColoration)
{
case ModelColorationType.DebugFacetIdentification:
topFacetColor = Color.cyan;
bottomFacetColor = Color.red;
break;
case ModelColorationType.ShinyFlatFacets:
topFacetColor = Color.yellow;
bottomFacetColor = Color.yellow;
break;
default:
throw new System.ComponentModel.InvalidEnumArgumentException();
}
Vector4 baseEmissionColor = Color.white;
// Top facet.
AppendSimpleTriangleVerticesToModel(
new Vector3[] { forwardPosition, rightPosition, leftPosition },
topFacetColor,
baseEmissionColor,
leftSegmentFraction,
rightSegmentFraction,
FacetType.Generic,
placementMatrix,
ref inoutSwarmerModelVertices);
// Bottom facet.
AppendSimpleTriangleVerticesToModel(
new Vector3[] { forwardPosition, leftPosition, rightPosition },
bottomFacetColor,
baseEmissionColor,
leftSegmentFraction,
rightSegmentFraction,
FacetType.Generic,
placementMatrix,
ref inoutSwarmerModelVertices);
}
private static void AppendTriangularBifrustumVerticesToModel(
float leftSegmentFraction,
float rightSegmentFraction,
ModelColorationType modelColoration,
FacetType frontLeftFacetType,
FacetType frontRightFacetType,
FacetType rearFacetType,
Matrix4x4 placementMatrix,
ref List <SwarmShaderSwarmerModelVertex> inoutSwarmerModelVertices)
{
// Top-half.
AppendTriangularFrustumVerticesToModel(
leftSegmentFraction,
rightSegmentFraction,
modelColoration,
frontLeftFacetType,
frontRightFacetType,
rearFacetType,
true, // useTopHalfColoring
placementMatrix,
ref inoutSwarmerModelVertices);
// Bottom-half.
{
Matrix4x4 flippingMatrix = Matrix4x4.TRS(
Vector3.zero,
Quaternion.AngleAxis(180.0f, Vector3.forward),
Vector3.one);
AppendTriangularFrustumVerticesToModel(
leftSegmentFraction,
rightSegmentFraction,
modelColoration,
frontRightFacetType, // NOTE: Left-right swapped.
frontLeftFacetType, // NOTE: Left-right swapped.
rearFacetType,
false, // useTopHalfColoring
(placementMatrix * flippingMatrix),
ref inoutSwarmerModelVertices);
}
}
private static void AppendTriangularFrustumVerticesToModel(
float leftSegmentFraction,
float rightSegmentFraction,
ModelColorationType modelColoration,
FacetType frontLeftFacetType,
FacetType frontRightFacetType,
FacetType rearFacetType,
bool useTopHalfColoring,
Matrix4x4 placementMatrix,
ref List <SwarmShaderSwarmerModelVertex> inoutSwarmerModelVertices)
{
float bevelSizeY = 0.2f;
float bevelSizeZ = 0.6f;
Vector3 baseForwardPosition = Vector3.forward;
Vector3 baseRightPosition = (Quaternion.AngleAxis(120.0f, Vector3.up) * baseForwardPosition);
Vector3 baseLeftPosition = (Quaternion.AngleAxis(-120.0f, Vector3.up) * baseForwardPosition);
Vector3 topForwardPosition = (baseForwardPosition + new Vector3(0.0f, bevelSizeY, (-1.0f * bevelSizeZ)));
Vector3 topRightPosition = (Quaternion.AngleAxis(120.0f, Vector3.up) * topForwardPosition);
Vector3 topLeftPosition = (Quaternion.AngleAxis(-120.0f, Vector3.up) * topForwardPosition);
Vector4 rearFacetAlbedoColor;
Vector4 frontLeftFacetAlbedoColor;
Vector4 frontRightFacetAlbedoColor;
Vector4 topFacetAlbedoColor;
switch (modelColoration)
{
case ModelColorationType.DebugFacetIdentification:
{
rearFacetAlbedoColor = Color.green;
frontLeftFacetAlbedoColor = Color.blue;
frontRightFacetAlbedoColor = Color.red;
topFacetAlbedoColor = (useTopHalfColoring ? Color.yellow : Color.cyan);
break;
}
case ModelColorationType.ShinyFlatFacets:
{
Vector4 sideColor = new Color(0.6f, 0.6f, 0.6f);
rearFacetAlbedoColor = sideColor;
frontLeftFacetAlbedoColor = sideColor;
frontRightFacetAlbedoColor = sideColor;
topFacetAlbedoColor = new Color(0.05f, 0.05f, 0.05f);
break;
}
default:
throw new System.ComponentModel.InvalidEnumArgumentException();
}
if (useTopHalfColoring == false)
{
Vector4 swapStorage = frontLeftFacetAlbedoColor;
frontLeftFacetAlbedoColor = frontRightFacetAlbedoColor;
frontRightFacetAlbedoColor = swapStorage;
}
Vector4 baseEmissionColor = Color.white;
// Rear facet.
AppendSimpleQuadVerticesToModel(
new Vector3[] { baseLeftPosition, topLeftPosition, topRightPosition, baseRightPosition },
rearFacetAlbedoColor,
baseEmissionColor,
leftSegmentFraction,
rightSegmentFraction,
rearFacetType,
placementMatrix,
ref inoutSwarmerModelVertices);
// Front-left facet.
AppendSimpleQuadVerticesToModel(
new Vector3[] { baseForwardPosition, topForwardPosition, topLeftPosition, baseLeftPosition },
frontLeftFacetAlbedoColor,
baseEmissionColor,
leftSegmentFraction,
rightSegmentFraction,
frontLeftFacetType,
placementMatrix,
ref inoutSwarmerModelVertices);
// Front-right facet.
AppendSimpleQuadVerticesToModel(
new Vector3[] { baseRightPosition, topRightPosition, topForwardPosition, baseForwardPosition },
frontRightFacetAlbedoColor,
baseEmissionColor,
leftSegmentFraction,
rightSegmentFraction,
frontRightFacetType,
placementMatrix,
ref inoutSwarmerModelVertices);
// Top facet.
AppendSimpleTriangleVerticesToModel(
new Vector3[] { topForwardPosition, topRightPosition, topLeftPosition },
topFacetAlbedoColor,
baseEmissionColor,
leftSegmentFraction,
rightSegmentFraction,
FacetType.Top,
placementMatrix,
ref inoutSwarmerModelVertices);
}
