/*
* Sets the shader uniforms that are necessary to project on screen the
* given TerrainQuad. This method can set the uniforms that are specific to
* the given quad.
*/
public virtual void SetUniforms(TerrainNode node, TerrainQuad quad, MaterialPropertyBlock matPropertyBlock)
{
if (matPropertyBlock == null || node == null || quad == null)
{
return;
}
double ox = quad.GetOX();
double oy = quad.GetOY();
double l = quad.GetLength();
double distFactor = (double)node.GetDistFactor();
int level = quad.GetLevel();
matPropertyBlock.AddVector(m_uniforms.offset, new Vector4((float)ox, (float)oy, (float)l, (float)level));
Vector3d2 camera = node.GetLocalCameraPos();
matPropertyBlock.AddVector(m_uniforms.camera, new Vector4((float)((camera.x - ox) / l), (float)((camera.y - oy) / l),
(float)((camera.z - node.GetView().GetGroundHeight()) / (l * distFactor)),
(float)camera.z));
Vector3d2 c = node.GetLocalCameraPos();
Matrix3x3d m = m_localToTangent * (new Matrix3x3d(l, 0.0, ox - c.x, 0.0, l, oy - c.y, 0.0, 0.0, 1.0));
matPropertyBlock.AddMatrix(m_uniforms.tileToTangent, m.ToMatrix4x4());
SetScreenUniforms(node, quad, matPropertyBlock);
}
/**
* Sets the shader uniforms that are necessary to project on screen the
* given TerrainQuad. This method can set the uniforms that are specific to
* the given quad.
*/
public virtual void SetUniforms(TerrainNode node, TerrainQuad quad, MaterialPropertyBlock matPropertyBlock)
{
if(matPropertyBlock == null || node == null || quad == null) return;
double ox = quad.GetOX();
double oy = quad.GetOY();
double l = quad.GetLength();
double distFactor = (double)node.GetDistFactor();
int level = quad.GetLevel();
matPropertyBlock.AddVector(m_uniforms.offset, new Vector4((float)ox, (float)oy, (float)l, (float)level));
Vector3d2 camera = node.GetLocalCameraPos();
matPropertyBlock.AddVector(m_uniforms.camera, new Vector4( (float)((camera.x - ox) / l), (float)((camera.y - oy) / l),
(float)((camera.z - node.GetView().GetGroundHeight()) / (l * distFactor)),
(float)camera.z));
Vector3d2 c = node.GetLocalCameraPos();
Matrix3x3d m = m_localToTangent * (new Matrix3x3d(l, 0.0, ox - c.x, 0.0, l, oy - c.y, 0.0, 0.0, 1.0));
matPropertyBlock.AddMatrix(m_uniforms.tileToTangent, m.ToMatrix4x4());
SetScreenUniforms(node, quad, matPropertyBlock);
}
