From aa31cbba4ffba8630ce80f8ec25333c81984aa48 Mon Sep 17 00:00:00 2001
From: AnyOldName3 <krizdjali+github@gmail.com>
Date: Wed, 8 Nov 2017 01:20:52 +0000
Subject: [PATCH] Attempt (and fail) to make the local map show without
 unwanted shadow

---
 apps/openmw/mwrender/localmap.cpp   | 8 ++++++++
 components/shader/shadermanager.cpp | 4 +++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/apps/openmw/mwrender/localmap.cpp b/apps/openmw/mwrender/localmap.cpp
index b78c4dcd2c..4b60a7cf22 100644
--- a/apps/openmw/mwrender/localmap.cpp
+++ b/apps/openmw/mwrender/localmap.cpp
@@ -23,6 +23,7 @@
 #include "../mwworld/cellstore.hpp"
 
 #include "vismask.hpp"
+#include "shadow.hpp"
 
 namespace
 {
@@ -201,6 +202,13 @@ osg::ref_ptr<osg::Camera> LocalMap::createOrthographicCamera(float x, float y, f
 
     lightSource->setStateSetModes(*stateset, osg::StateAttribute::ON|osg::StateAttribute::OVERRIDE);
 
+    osg::ref_ptr<osg::Image> fakeShadowMapImage = new osg::Image();
+    fakeShadowMapImage->allocateImage(1, 1, 1, GL_DEPTH_COMPONENT, GL_FLOAT);
+    *(float*)fakeShadowMapImage->data() = -std::numeric_limits<float>::infinity(); // this has been tried both positive and negative
+    osg::ref_ptr<osg::Texture> fakeShadowMapTexture = new osg::Texture2D(fakeShadowMapImage);
+    for (int i = MWShadow::baseShadowTextureUnit; i < MWShadow::baseShadowTextureUnit + MWShadow::numberOfShadowMapsPerLight; ++i)
+        stateset->setTextureAttributeAndModes(i, fakeShadowMapTexture, osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE | osg::StateAttribute::PROTECTED);
+
     camera->addChild(lightSource);
     camera->setStateSet(stateset);
     camera->setViewport(0, 0, mMapResolution, mMapResolution);
diff --git a/components/shader/shadermanager.cpp b/components/shader/shadermanager.cpp
index 02488dd42b..93b0168ae7 100644
--- a/components/shader/shadermanager.cpp
+++ b/components/shader/shadermanager.cpp
@@ -11,6 +11,8 @@
 #include <boost/filesystem/fstream.hpp>
 #include <boost/algorithm/string.hpp>
 
+#include "apps/openmw/mwrender/shadow.hpp"
+
 namespace Shader
 {
 
@@ -106,7 +108,7 @@ namespace Shader
         // set up shadows in the shader
         // get these values from settings manager
         bool shadows = true & !disableShadows;
-        int numShadowMaps = 2;
+        int numShadowMaps = MWRender::MWShadow::numberOfShadowMapsPerLight;
         DefineMap definesWithShadows;
         if (shadows)
         {