private void Update()
{
if (Input.GetKeyDown(KeyCode.C))
{
// Remove all projectors.
while (m_DecalProjectors.Count > 0)
{
m_DecalsMesh.ClearAll();
m_DecalProjectors.Clear();
// Clearing of the decals mesh means we need to initialize it again.
m_DecalsMesh.Initialize(m_DecalsInstance);
}
m_DecalsInstance.UpdateDecalsMeshes(m_DecalsMesh);
}
if (Input.GetButtonDown("Fire1"))
{
Ray l_Ray = Camera.main.ViewportPointToRay(new Vector3(0.5f, 0.5f, 0.0f));
RaycastHit l_RaycastHit;
if (Physics.Raycast(l_Ray, out l_RaycastHit, Mathf.Infinity))
{
// Collider hit.
// Make sure there are not too many projectors.
if (m_DecalProjectors.Count >= m_MaximumNumberOfProjectors)
{
// If there are more than the maximum number of projectors, we delete
// the oldest one.
SkinnedDecalProjector l_DecalProjector = m_DecalProjectors [0];
m_DecalProjectors.RemoveAt(0);
m_DecalsMesh.RemoveProjector(l_DecalProjector);
}
// Calculate the position and rotation for the new decal projector.
Vector3 l_ProjectorPosition = l_RaycastHit.point - (m_DecalProjectorOffset * l_Ray.direction.normalized);
Quaternion l_ProjectorRotation = ProjectorRotationUtility.ProjectorRotation(Camera.main.transform.forward, Vector3.up);
// Randomize the rotation.
Quaternion l_RandomRotation = Quaternion.Euler(0.0f, Random.Range(0.0f, 360.0f), 0.0f);
l_ProjectorRotation = l_ProjectorRotation * l_RandomRotation;
// We hit a collider. Next we have to find the mesh that belongs to the collider.
// That step depends on how you set up your mesh filters and collider relative to
// each other in the game objects. It is important to have a consistent way in order
// to have a simpler implementation.
SkinnedMeshRenderer l_SkinnedMeshRenderer = l_RaycastHit.collider.GetComponent <SkinnedMeshRenderer> ();
if (l_SkinnedMeshRenderer != null)
{
Mesh l_Mesh = null;
l_Mesh = l_SkinnedMeshRenderer.sharedMesh;
if (l_Mesh != null)
{
// Create the decal projector.
SkinnedDecalProjector l_DecalProjector = new SkinnedDecalProjector(l_ProjectorPosition, l_ProjectorRotation, m_DecalProjectorScale, m_CullingAngle, m_MeshOffset, m_UVRectangleIndex, m_UVRectangleIndex, CurrentColor, 0.0f);
// Add the projector to our list and the decals mesh, such that both are
// synchronized. All the mesh data that is now added to the decals mesh
// will belong to this projector.
m_DecalProjectors.Add(l_DecalProjector);
m_DecalsMesh.AddProjector(l_DecalProjector);
// Get the required matrices.
Matrix4x4 l_WorldToMeshMatrix = l_RaycastHit.collider.renderer.transform.worldToLocalMatrix;
Matrix4x4 l_MeshToWorldMatrix = l_RaycastHit.collider.renderer.transform.localToWorldMatrix;
// Add the mesh data to the decals mesh, cut and offset it.
m_DecalsMesh.Add(l_Mesh, l_SkinnedMeshRenderer.bones, l_SkinnedMeshRenderer.quality, l_WorldToMeshMatrix, l_MeshToWorldMatrix);
m_DecalsMeshCutter.CutDecalsPlanes(m_DecalsMesh);
m_DecalsMesh.OffsetActiveProjectorVertices();
// The changes are only present in the decals mesh at the moment. We have
// to pass them to the decals instance to visualize them.
m_DecalsInstance.UpdateDecalsMeshes(m_DecalsMesh);
// For the next hit, use a new uv rectangle. Usually, you would select the uv rectangle
// based on the surface you have hit.
NextUVRectangleIndex();
NextColorIndex();
}
}
}
}
}
private void Update()
{
if (Input.GetKeyDown (KeyCode.C)) {
// Remove all projectors.
while (m_DecalProjectors.Count > 0) {
m_DecalsMesh.ClearAll ();
m_DecalProjectors.Clear ();
// Clearing of the decals mesh means we need to initialize it again.
m_DecalsMesh.Initialize (m_DecalsInstance);
}
m_DecalsInstance.UpdateDecalsMeshes (m_DecalsMesh);
}
if (Input.GetButtonDown ("Fire1")) {
Ray l_Ray = Camera.main.ViewportPointToRay (new Vector3 (0.5f, 0.5f, 0.0f));
RaycastHit l_RaycastHit;
if (Physics.Raycast (l_Ray, out l_RaycastHit, Mathf.Infinity)) {
// Collider hit.
// Make sure there are not too many projectors.
if (m_DecalProjectors.Count >= m_MaximumNumberOfProjectors) {
// If there are more than the maximum number of projectors, we delete
// the oldest one.
SkinnedDecalProjector l_DecalProjector = m_DecalProjectors [0];
m_DecalProjectors.RemoveAt (0);
m_DecalsMesh.RemoveProjector (l_DecalProjector);
}
// Calculate the position and rotation for the new decal projector.
Vector3 l_ProjectorPosition = l_RaycastHit.point - (m_DecalProjectorOffset * l_Ray.direction.normalized);
Quaternion l_ProjectorRotation = ProjectorRotationUtility.ProjectorRotation (Camera.main.transform.forward, Vector3.up);
// Randomize the rotation.
Quaternion l_RandomRotation = Quaternion.Euler (0.0f, Random.Range (0.0f, 360.0f), 0.0f);
l_ProjectorRotation = l_ProjectorRotation * l_RandomRotation;
// We hit a collider. Next we have to find the mesh that belongs to the collider.
// That step depends on how you set up your mesh filters and collider relative to
// each other in the game objects. It is important to have a consistent way in order
// to have a simpler implementation.
SkinnedMeshRenderer l_SkinnedMeshRenderer = l_RaycastHit.collider.GetComponent <SkinnedMeshRenderer> ();
if (l_SkinnedMeshRenderer != null) {
Mesh l_Mesh = null;
l_Mesh = l_SkinnedMeshRenderer.sharedMesh;
if (l_Mesh != null) {
// Create the decal projector.
SkinnedDecalProjector l_DecalProjector = new SkinnedDecalProjector (l_ProjectorPosition, l_ProjectorRotation, m_DecalProjectorScale, m_CullingAngle, m_MeshOffset, m_UVRectangleIndex, m_UVRectangleIndex);
// Add the projector to our list and the decals mesh, such that both are
// synchronized. All the mesh data that is now added to the decals mesh
// will belong to this projector.
m_DecalProjectors.Add (l_DecalProjector);
m_DecalsMesh.AddProjector (l_DecalProjector);
// Get the required matrices.
Matrix4x4 l_WorldToMeshMatrix = l_RaycastHit.collider.renderer.transform.worldToLocalMatrix;
Matrix4x4 l_MeshToWorldMatrix = l_RaycastHit.collider.renderer.transform.localToWorldMatrix;
// Add the mesh data to the decals mesh, cut and offset it.
m_DecalsMesh.Add (l_Mesh, l_SkinnedMeshRenderer.bones, l_SkinnedMeshRenderer.quality, l_WorldToMeshMatrix, l_MeshToWorldMatrix);
m_DecalsMeshCutter.CutDecalsPlanes (m_DecalsMesh);
m_DecalsMesh.OffsetActiveProjectorVertices ();
// The changes are only present in the decals mesh at the moment. We have
// to pass them to the decals instance to visualize them.
m_DecalsInstance.UpdateDecalsMeshes (m_DecalsMesh);
// For the next hit, use a new uv rectangle. Usually, you would select the uv rectangle
// based on the surface you have hit.
NextUVRectangleIndex ();
}
}
}
}
}
