internal void Draw(Matrix4 projection, int environmentMapMatrix = -1)
{
if (environmentMapMatrix >= 0)
{
_viewMatrix = HelperSkybox._viewMatrixSkybox[environmentMapMatrix];
projection = HelperSkybox._projectionMatrixSkybox;
}
else
{
if (KWEngine.CurrentWorld.IsFirstPersonMode)
{
_viewMatrix = HelperCamera.GetViewMatrix(KWEngine.CurrentWorld.GetFirstPersonObject().Position);
}
else
{
_viewMatrix = KWEngine.CurrentWindow._viewMatrix;
}
}
// Clear translation part:
_viewMatrix = _viewMatrix.ClearTranslation();
_viewMatrix = KWEngine.CurrentWorld._skyboxRotation * _viewMatrix;
Matrix4 MVP = _viewMatrix * projection;
GL.FrontFace(FrontFaceDirection.Cw);
GL.DepthFunc(DepthFunction.Lequal);
GL.UseProgram(mProgramId);
GL.UniformMatrix4(mUniform_MVP, false, ref MVP);
GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(TextureTarget.TextureCubeMap, KWEngine.CurrentWorld._textureSkybox);
GL.Uniform1(mUniform_Texture, 0);
Vector4 skyColor = new Vector4(KWEngine.CurrentWorld._ambientLight.Xyz, KWEngine.CurrentWorld._ambientLight.W * KWEngine.CurrentWorld._textureBackgroundMultiplier);
GL.Uniform4(mUniform_TintColor, ref skyColor);
GeoMesh mesh = KWEngine.Models["KWCube"].Meshes.Values.ElementAt(0);
GL.BindVertexArray(mesh.VAO);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, mesh.VBOIndex);
GL.DrawElements(mesh.Primitive, mesh.IndexCount, DrawElementsType.UnsignedInt, 0);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, 0);
GL.BindTexture(TextureTarget.TextureCubeMap, 0);
GL.UseProgram(0);
GL.DepthFunc(DepthFunction.Less);
GL.FrontFace(FrontFaceDirection.Ccw);
}
internal override void Draw(GameObject g, ref Matrix4 viewProjection)
{
if (KWEngine.CurrentWorld.IsFirstPersonMode)
{
_viewMatrix = HelperCamera.GetViewMatrix(KWEngine.CurrentWorld.GetFirstPersonObject().Position);
}
else
{
_viewMatrix = KWEngine.CurrentWindow._viewMatrix;
}
// Clear translation part:
_viewMatrix = _viewMatrix.ClearTranslation();
_viewMatrix = KWEngine.CurrentWorld._skyboxRotation * _viewMatrix;
Matrix4 MVP = _viewMatrix * viewProjection;
GL.FrontFace(FrontFaceDirection.Cw);
GL.DepthFunc(DepthFunction.Lequal);
GL.UseProgram(mProgramId);
GL.UniformMatrix4(mUniform_MVP, false, ref MVP);
GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(TextureTarget.TextureCubeMap, KWEngine.CurrentWorld._textureSkybox);
GL.Uniform1(mUniform_Texture, 0);
GL.Uniform4(mUniform_TintColor, ref KWEngine.CurrentWorld._textureBackgroundTint);
GeoMesh mesh = KWEngine.Models["KWCube"].Meshes.Values.ElementAt(0);
GL.BindVertexArray(mesh.VAO);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, mesh.VBOIndex);
GL.DrawElements(mesh.Primitive, mesh.IndexCount, DrawElementsType.UnsignedInt, 0);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, 0);
GL.BindTexture(TextureTarget.TextureCubeMap, 0);
GL.UseProgram(0);
GL.DepthFunc(DepthFunction.Less);
GL.FrontFace(FrontFaceDirection.Ccw);
}