public void RenderWater(BaseCamera camera, ref Matrix4 projectionMatrix, float nearClipPlane, float farClipPlane
, DirectionalLight sun = null, List <PointLight> lights = null)
{
PostConstructor();
/*Water distortion cycle*/
m_shader.startProgram();
m_fbo.ReflectionTexture.BindTexture(TextureUnit.Texture0);
m_fbo.RefractionTexture.BindTexture(TextureUnit.Texture1);
m_waterDistortionMap.BindTexture(TextureUnit.Texture2);
m_waterNormalMap.BindTexture(TextureUnit.Texture3);
m_fbo.DepthTexture.BindTexture(TextureUnit.Texture4);
m_shader.setTransformationMatrices(ref m_modelMatrix, camera.GetViewMatrix(), ref projectionMatrix);
m_shader.setReflectionSampler(0);
m_shader.setRefractionSampler(1);
m_shader.setDuDvSampler(2);
m_shader.setNormalMapSampler(3);
m_shader.setDepthSampler(4);
m_shader.setCameraPosition(camera.GetEyeVector());
m_shader.setDistortionProperties(m_moveFactor, m_waveStrength);
m_shader.setDirectionalLight(sun);
m_shader.setPointLight(lights);
m_shader.setClippingPlanes(ref nearClipPlane, ref farClipPlane);
m_shader.setMist(m_mist);
m_shader.setTransparancyDepth(TransparencyDepth);
GL.Enable(EnableCap.Blend);
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha);
m_buffer.RenderVAO(PrimitiveType.Triangles);
GL.Disable(EnableCap.Blend);
m_shader.stopProgram();
}
private void GetEdgePoints(BaseCamera viewerCamera, ConvexVolume volume, out Vector3 LBN, out Vector3 RTF)
{
Vector3 ViewerPosition = viewerCamera.GetEyeVector();
// Find left and right edges
Vector3 IntersectionPointC = GetLeftRightIntersectionPoint(ViewerPosition, volume.FarPlane, volume.LeftPlane);
Vector3 IntersectionPointB = GetLeftRightIntersectionPoint(ViewerPosition, volume.FarPlane, volume.RightPlane);
// Find top and bottom edges
Vector3 IntersectionPointBottom = GetTopBottomIntersectionPoint(ViewerPosition, volume.FarPlane, volume.BottomPlane);
Vector3 IntersectionPointTop = GetTopBottomIntersectionPoint(ViewerPosition, volume.FarPlane, volume.TopPlane);
float left, right, top, bottom, near, far;
// left
Dictionary <float, Vector3> projectedValues = new Dictionary <float, Vector3>();
projectedValues.Add(GeometryMath.ProjectVectorOnNormalizedVector(IntersectionPointB, -RightVector), IntersectionPointB);
projectedValues.Add(GeometryMath.ProjectVectorOnNormalizedVector(IntersectionPointC, -RightVector), IntersectionPointC);
projectedValues.Add(GeometryMath.ProjectVectorOnNormalizedVector(ViewerPosition, -RightVector), ViewerPosition);
left = projectedValues[projectedValues.Keys.Max()].X;
// right
projectedValues.Clear();
projectedValues.Add(GeometryMath.ProjectVectorOnNormalizedVector(IntersectionPointB, RightVector), IntersectionPointB);
projectedValues.Add(GeometryMath.ProjectVectorOnNormalizedVector(IntersectionPointC, RightVector), IntersectionPointC);
projectedValues.Add(GeometryMath.ProjectVectorOnNormalizedVector(ViewerPosition, RightVector), ViewerPosition);
right = projectedValues[projectedValues.Keys.Max()].X;
// top
projectedValues.Clear();
projectedValues.Add(GeometryMath.ProjectVectorOnNormalizedVector(IntersectionPointTop, UpVector), IntersectionPointTop);
projectedValues.Add(GeometryMath.ProjectVectorOnNormalizedVector(IntersectionPointBottom, UpVector), IntersectionPointBottom);
projectedValues.Add(GeometryMath.ProjectVectorOnNormalizedVector(ViewerPosition, UpVector), ViewerPosition);
top = projectedValues[projectedValues.Keys.Max()].Y;
// bottom
projectedValues.Clear();
projectedValues.Add(GeometryMath.ProjectVectorOnNormalizedVector(IntersectionPointTop, -UpVector), IntersectionPointTop);
projectedValues.Add(GeometryMath.ProjectVectorOnNormalizedVector(IntersectionPointBottom, -UpVector), IntersectionPointBottom);
projectedValues.Add(GeometryMath.ProjectVectorOnNormalizedVector(ViewerPosition, -UpVector), ViewerPosition);
bottom = projectedValues[projectedValues.Keys.Max()].Y;
// far
projectedValues.Clear();
projectedValues.Add(GeometryMath.ProjectVectorOnNormalizedVector(IntersectionPointB, ForwardVector), IntersectionPointB);
projectedValues.Add(GeometryMath.ProjectVectorOnNormalizedVector(IntersectionPointC, ForwardVector), IntersectionPointC);
projectedValues.Add(GeometryMath.ProjectVectorOnNormalizedVector(ViewerPosition, ForwardVector), ViewerPosition);
far = projectedValues[projectedValues.Keys.Max()].Z;
// near
projectedValues.Clear();
projectedValues.Add(GeometryMath.ProjectVectorOnNormalizedVector(IntersectionPointB, -ForwardVector), IntersectionPointB);
projectedValues.Add(GeometryMath.ProjectVectorOnNormalizedVector(IntersectionPointC, -ForwardVector), IntersectionPointC);
projectedValues.Add(GeometryMath.ProjectVectorOnNormalizedVector(ViewerPosition, -ForwardVector), ViewerPosition);
near = projectedValues[projectedValues.Keys.Max()].Z;
LBN = new Vector3(left, bottom, near);
RTF = new Vector3(right, top, far);
}
private Vector3 GetTargetOriginPosition()
{
ThirdPersonCamera thirdPersonCamera = m_viewerCamera as ThirdPersonCamera;
if (thirdPersonCamera != null)
{
return((thirdPersonCamera.GetThirdPersonTarget() as Component).ComponentTranslation);
}
else
{
return(m_viewerCamera.GetEyeVector());
}
}
/*________*/
/*| A |*/
/*| /\ |*/
/*| / \ |*/
/*|C----B|*/
/*|______|*/
// There is no use for current algorithm because orthogonal projection should be cubic
public void Update()
{
float ShadowFarPlane = 300.0f;
float ShadowNearPlane = 30.0f;
float FoV = EngineStatics.FoV;
float halfFoV = FoV * 0.5f;
float AspectRatio = EngineStatics.SCREEN_ASPECT_RATIO;
Vector3 camWorldPosition = m_camera.GetEyeVector();
Vector3 camForward = m_camera.GetEyeSpaceForwardVector();
Vector3 camRight = m_camera.GetEyeSpaceRightVector();
// Omit y component
camForward = new Vector3(camForward.X, 0, camForward.Z).Normalized();
camRight = new Vector3(camRight.X, 0, camRight.Z).Normalized();
Vector3 camFarPlaneWorldPosition = camWorldPosition + camForward * ShadowFarPlane;
Vector3 camEdgeFarPlaneWorldPosition1 = camFarPlaneWorldPosition + camRight * ShadowFarPlane;
Vector3 camEdgeFarPlaneWorldPosition2 = camFarPlaneWorldPosition - camRight * ShadowFarPlane;
Vector3 camEdgeNearPlaneWorldPosition = camWorldPosition - camForward * ShadowNearPlane;
//Matrix3 rotationPositive = Matrix3.CreateRotationY(MathHelper.DegreesToRadians(halfFoV));
//Matrix3 rotationNegative = Matrix3.CreateRotationY(MathHelper.DegreesToRadians(-halfFoV));
//Vector3 camEdgePlaneDirection1 = (VectorMath.VectorMathOperations.TransformVec3(ref camForward, ref rotationPositive)).Normalized();
//Vector3 camEdgePlaneDirection2 = (VectorMath.VectorMathOperations.TransformVec3(ref camForward, ref rotationNegative)).Normalized();
//float edge1ProjValue = Vector3.Dot(camEdgePlaneDirection1, camFarPlaneWorldPosition);
//float edge2ProjValue = Vector3.Dot(camEdgePlaneDirection2, camFarPlaneWorldPosition);
//Vector3 edgePosition1 = camWorldPosition + camEdgePlaneDirection1 * edge1ProjValue;
//Vector3 edgePosition2 = camWorldPosition + camEdgePlaneDirection2 * edge2ProjValue;
//Vector3 edgePosition3 = camWorldPosition - camForward * ShadowNearPlane;
// TODO -> Find maxX, minX, maxZ, minZ
float maxX = Math.Max(Math.Max(camEdgeFarPlaneWorldPosition1.X, camEdgeFarPlaneWorldPosition2.X), camEdgeNearPlaneWorldPosition.X);
float maxZ = Math.Max(Math.Max(camEdgeFarPlaneWorldPosition1.Z, camEdgeFarPlaneWorldPosition2.Z), camEdgeNearPlaneWorldPosition.Z);
float minX = Math.Min(Math.Min(camEdgeFarPlaneWorldPosition1.X, camEdgeFarPlaneWorldPosition2.X), camEdgeNearPlaneWorldPosition.X);
float minZ = Math.Min(Math.Min(camEdgeFarPlaneWorldPosition1.Z, camEdgeFarPlaneWorldPosition2.Z), camEdgeNearPlaneWorldPosition.Z);
Max = new Vector3(maxX, 0, maxZ);
Min = new Vector3(minX, 0, minZ);
}
public void render(BaseCamera camera, ref Matrix4 projectionMatrix)
{
postConstructor();
Matrix4 modelMatrix = Matrix4.Identity;
GetShader().startProgram();
m_texture.BindTexture(TextureUnit.Texture0);
m_envMap.BindTexture(TextureUnit.Texture1);
GetShader().setUniformValues(ref modelMatrix, camera.GetViewMatrix(), ref projectionMatrix, camera.GetEyeVector(), 0, 1);
m_skin.Buffer.RenderVAO(PrimitiveType.Triangles);
GetShader().stopProgram();
}