From deffbca3ee209f6aea3358692d9ca6dc7090e748 Mon Sep 17 00:00:00 2001
From: Dave Parks <davep@lindenlab.com>
Date: Thu, 28 Apr 2022 15:51:31 +0000
Subject: [PATCH] SL-17281 environment map prototype (stupid slow and hacky,
but provides a way to get a "real" environment map for shader development)
---
indra/llrender/llcubemap.cpp | 218 +++---------------
indra/llrender/llcubemap.h | 16 +-
indra/newview/CMakeLists.txt | 2 +
indra/newview/llenvironmentmap.cpp | 116 ++++++++++
indra/newview/llenvironmentmap.h | 48 ++++
indra/newview/llviewermenu.cpp | 8 +
indra/newview/pipeline.cpp | 7 +-
indra/newview/pipeline.h | 4 +
.../skins/default/xui/en/menu_viewer.xml | 7 +
9 files changed, 231 insertions(+), 195 deletions(-)
create mode 100644 indra/newview/llenvironmentmap.cpp
create mode 100644 indra/newview/llenvironmentmap.h
diff --git a/indra/llrender/llcubemap.cpp b/indra/llrender/llcubemap.cpp
index 834084674e0..40d15280d30 100644
--- a/indra/llrender/llcubemap.cpp
+++ b/indra/llrender/llcubemap.cpp
@@ -166,6 +166,39 @@ void LLCubeMap::init(const std::vector<LLPointer<LLImageRaw> >& rawimages)
}
}
+void LLCubeMap::initEnvironmentMap(const std::vector<LLPointer<LLImageRaw> >& rawimages)
+{
+ llassert(rawimages.size() == 6);
+
+ U32 texname = 0;
+
+ LLImageGL::generateTextures(1, &texname);
+
+ U32 resolution = rawimages[0]->getWidth();
+ U32 components = rawimages[0]->getComponents();
+
+ for (int i = 0; i < 6; i++)
+ {
+ llassert(rawimages[i]->getWidth() == resolution);
+ llassert(rawimages[i]->getHeight() == resolution);
+ llassert(rawimages[i]->getComponents() == components);
+
+
+ mImages[i] = new LLImageGL(resolution, resolution, components, FALSE);
+ mImages[i]->setTarget(mTargets[i], LLTexUnit::TT_CUBE_MAP);
+ mRawImages[i] = rawimages[i];
+ mImages[i]->createGLTexture(0, mRawImages[i], texname);
+
+ gGL.getTexUnit(0)->bindManual(LLTexUnit::TT_CUBE_MAP, texname);
+ mImages[i]->setAddressMode(LLTexUnit::TAM_CLAMP);
+ stop_glerror();
+
+ mImages[i]->setSubImage(mRawImages[i], 0, 0, resolution, resolution);
+ }
+ gGL.getTexUnit(0)->disable();
+ disable();
+}
+
GLuint LLCubeMap::getGLName()
{
return mImages[0]->getTexName();
@@ -256,191 +289,6 @@ void LLCubeMap::restoreMatrix()
}*/
}
-void LLCubeMap::setReflection (void)
-{
- gGL.getTexUnit(mTextureStage)->bindManual(LLTexUnit::TT_CUBE_MAP, getGLName());
- mImages[0]->setFilteringOption(LLTexUnit::TFO_ANISOTROPIC);
- mImages[0]->setAddressMode(LLTexUnit::TAM_CLAMP);
-}
-
-LLVector3 LLCubeMap::map(U8 side, U16 v_val, U16 h_val) const
-{
- LLVector3 dir;
-
- const U8 curr_coef = side >> 1; // 0/1 = X axis, 2/3 = Y, 4/5 = Z
- const S8 side_dir = (((side & 1) << 1) - 1); // even = -1, odd = 1
- const U8 i_coef = (curr_coef + 1) % 3;
- const U8 j_coef = (i_coef + 1) % 3;
-
- dir.mV[curr_coef] = side_dir;
-
- switch (side)
- {
- case 0: // negative X
- dir.mV[i_coef] = -F32((v_val<<1) + 1) / RESOLUTION + 1;
- dir.mV[j_coef] = F32((h_val<<1) + 1) / RESOLUTION - 1;
- break;
- case 1: // positive X
- dir.mV[i_coef] = -F32((v_val<<1) + 1) / RESOLUTION + 1;
- dir.mV[j_coef] = -F32((h_val<<1) + 1) / RESOLUTION + 1;
- break;
- case 2: // negative Y
- dir.mV[i_coef] = -F32((v_val<<1) + 1) / RESOLUTION + 1;
- dir.mV[j_coef] = F32((h_val<<1) + 1) / RESOLUTION - 1;
- break;
- case 3: // positive Y
- dir.mV[i_coef] = F32((v_val<<1) + 1) / RESOLUTION - 1;
- dir.mV[j_coef] = F32((h_val<<1) + 1) / RESOLUTION - 1;
- break;
- case 4: // negative Z
- dir.mV[i_coef] = -F32((h_val<<1) + 1) / RESOLUTION + 1;
- dir.mV[j_coef] = -F32((v_val<<1) + 1) / RESOLUTION + 1;
- break;
- case 5: // positive Z
- dir.mV[i_coef] = -F32((h_val<<1) + 1) / RESOLUTION + 1;
- dir.mV[j_coef] = F32((v_val<<1) + 1) / RESOLUTION - 1;
- break;
- default:
- dir.mV[i_coef] = F32((v_val<<1) + 1) / RESOLUTION - 1;
- dir.mV[j_coef] = F32((h_val<<1) + 1) / RESOLUTION - 1;
- }
-
- dir.normVec();
- return dir;
-}
-
-
-BOOL LLCubeMap::project(F32& v_val, F32& h_val, BOOL& outside,
- U8 side, const LLVector3& dir) const
-{
- const U8 curr_coef = side >> 1; // 0/1 = X axis, 2/3 = Y, 4/5 = Z
- const S8 side_dir = (((side & 1) << 1) - 1); // even = -1, odd = 1
- const U8 i_coef = (curr_coef + 1) % 3;
- const U8 j_coef = (i_coef + 1) % 3;
-
- outside = TRUE;
- if (side_dir * dir.mV[curr_coef] < 0)
- return FALSE;
-
- LLVector3 ray;
-
- F32 norm_val = fabs(dir.mV[curr_coef]);
-
- if (norm_val < epsilon)
- norm_val = 1e-5f;
-
- ray.mV[curr_coef] = side_dir;
- ray.mV[i_coef] = dir.mV[i_coef] / norm_val;
- ray.mV[j_coef] = dir.mV[j_coef] / norm_val;
-
-
- const F32 i_val = (ray.mV[i_coef] + 1) * 0.5f * RESOLUTION;
- const F32 j_val = (ray.mV[j_coef] + 1) * 0.5f * RESOLUTION;
-
- switch (side)
- {
- case 0: // negative X
- v_val = RESOLUTION - i_val;
- h_val = j_val;
- break;
- case 1: // positive X
- v_val = RESOLUTION - i_val;
- h_val = RESOLUTION - j_val;
- break;
- case 2: // negative Y
- v_val = RESOLUTION - i_val;
- h_val = j_val;
- break;
- case 3: // positive Y
- v_val = i_val;
- h_val = j_val;
- break;
- case 4: // negative Z
- v_val = RESOLUTION - j_val;
- h_val = RESOLUTION - i_val;
- break;
- case 5: // positive Z
- v_val = RESOLUTION - j_val;
- h_val = i_val;
- break;
- default:
- v_val = i_val;
- h_val = j_val;
- }
-
- outside = ((v_val < 0) || (v_val > RESOLUTION) ||
- (h_val < 0) || (h_val > RESOLUTION));
-
- return TRUE;
-}
-
-BOOL LLCubeMap::project(F32& v_min, F32& v_max, F32& h_min, F32& h_max,
- U8 side, LLVector3 dir[4]) const
-{
- v_min = h_min = RESOLUTION;
- v_max = h_max = 0;
-
- BOOL fully_outside = TRUE;
- for (U8 vtx = 0; vtx < 4; ++vtx)
- {
- F32 v_val, h_val;
- BOOL outside;
- BOOL consider = project(v_val, h_val, outside, side, dir[vtx]);
- if (!outside)
- fully_outside = FALSE;
- if (consider)
- {
- if (v_val < v_min) v_min = v_val;
- if (v_val > v_max) v_max = v_val;
- if (h_val < h_min) h_min = h_val;
- if (h_val > h_max) h_max = h_val;
- }
- }
-
- v_min = llmax(0.0f, v_min);
- v_max = llmin(RESOLUTION - epsilon, v_max);
- h_min = llmax(0.0f, h_min);
- h_max = llmin(RESOLUTION - epsilon, h_max);
-
- return !fully_outside;
-}
-
-
-void LLCubeMap::paintIn(LLVector3 dir[4], const LLColor4U& col)
-{
- LL_PROFILE_ZONE_SCOPED;
- F32 v_min, v_max, h_min, h_max;
- LLVector3 center = dir[0] + dir[1] + dir[2] + dir[3];
- center.normVec();
-
- for (U8 side = 0; side < 6; ++side)
- {
- if (!project(v_min, v_max, h_min, h_max, side, dir))
- continue;
-
- U8 *td = mRawImages[side]->getData();
-
- U16 v_minu = (U16) v_min;
- U16 v_maxu = (U16) (ceil(v_max) + 0.5);
- U16 h_minu = (U16) h_min;
- U16 h_maxu = (U16) (ceil(h_max) + 0.5);
-
- for (U16 v = v_minu; v < v_maxu; ++v)
- for (U16 h = h_minu; h < h_maxu; ++h)
- //for (U16 v = 0; v < RESOLUTION; ++v)
- // for (U16 h = 0; h < RESOLUTION; ++h)
- {
- const LLVector3 ray = map(side, v, h);
- if (ray * center > 0.999)
- {
- const U32 offset = (RESOLUTION * v + h) * 4;
- for (U8 cc = 0; cc < 3; ++cc)
- td[offset + cc] = U8((td[offset + cc] + col.mV[cc]) * 0.5);
- }
- }
- mImages[side]->setSubImage(mRawImages[side], 0, 0, RESOLUTION, RESOLUTION);
- }
-}
void LLCubeMap::destroyGL()
{
diff --git a/indra/llrender/llcubemap.h b/indra/llrender/llcubemap.h
index a01636d8d41..9ce4a94bcae 100644
--- a/indra/llrender/llcubemap.h
+++ b/indra/llrender/llcubemap.h
@@ -40,6 +40,13 @@ class LLCubeMap : public LLRefCount
public:
LLCubeMap(bool init_as_srgb);
void init(const std::vector<LLPointer<LLImageRaw> >& rawimages);
+
+ // init from environment map images
+ // Similar to init, but takes ownership of rawimages and makes this cubemap
+ // respect the resolution of rawimages
+ // Raw images must point to array of six square images that are all the same resolution
+ // For example usage, see LLEnvironmentMap
+ void initEnvironmentMap(const std::vector<LLPointer<LLImageRaw> >& rawimages);
void initGL();
void initRawData(const std::vector<LLPointer<LLImageRaw> >& rawimages);
void initGLData();
@@ -54,18 +61,9 @@ class LLCubeMap : public LLRefCount
void disableTexture(void);
void setMatrix(S32 stage);
void restoreMatrix();
- void setReflection (void);
-
- void finishPaint();
GLuint getGLName();
- LLVector3 map(U8 side, U16 v_val, U16 h_val) const;
- BOOL project(F32& v_val, F32& h_val, BOOL& outside,
- U8 side, const LLVector3& dir) const;
- BOOL project(F32& v_min, F32& v_max, F32& h_min, F32& h_max,
- U8 side, LLVector3 dir[4]) const;
- void paintIn(LLVector3 dir[4], const LLColor4U& col);
void destroyGL();
public:
diff --git a/indra/newview/CMakeLists.txt b/indra/newview/CMakeLists.txt
index 964615320db..5e50f585953 100644
--- a/indra/newview/CMakeLists.txt
+++ b/indra/newview/CMakeLists.txt
@@ -196,6 +196,7 @@ set(viewer_SOURCE_FILES
lldynamictexture.cpp
llemote.cpp
llenvironment.cpp
+ llenvironmentmap.cpp
llestateinfomodel.cpp
lleventnotifier.cpp
lleventpoll.cpp
@@ -832,6 +833,7 @@ set(viewer_HEADER_FILES
lldynamictexture.h
llemote.h
llenvironment.h
+ llenvironmentmap.h
llestateinfomodel.h
lleventnotifier.h
lleventpoll.h
diff --git a/indra/newview/llenvironmentmap.cpp b/indra/newview/llenvironmentmap.cpp
new file mode 100644
index 00000000000..7f23c630f19
--- /dev/null
+++ b/indra/newview/llenvironmentmap.cpp
@@ -0,0 +1,116 @@
+/**
+ * @file llenvironmentmap.cpp
+ * @brief LLEnvironmentMap class implementation
+ *
+ * $LicenseInfo:firstyear=2022&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2022, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
+ * $/LicenseInfo$
+ */
+
+#include "llviewerprecompiledheaders.h"
+
+#include "llenvironmentmap.h"
+#include "pipeline.h"
+#include "llviewerwindow.h"
+
+LLEnvironmentMap::LLEnvironmentMap()
+{
+ mOrigin.setVec(0, 0, 0);
+}
+
+void LLEnvironmentMap::update(const LLVector3& origin, U32 resolution)
+{
+ LL_PROFILE_ZONE_SCOPED_CATEGORY_DISPLAY;
+
+ mOrigin = origin;
+
+ // allocate images
+ std::vector<LLPointer<LLImageRaw> > rawimages;
+ rawimages.reserve(6);
+
+ for (int i = 0; i < 6; ++i)
+ {
+ rawimages.push_back(new LLImageRaw(resolution, resolution, 3));
+ }
+
+ // ============== modified copy/paste of LLFloater360Capture::capture360Images() follows ==============
+
+ // these are the 6 directions we will point the camera, see LLCubeMap::mTargets
+ LLVector3 look_dirs[6] = {
+ LLVector3(-1, 0, 0),
+ LLVector3(1, 0, 0),
+ LLVector3(0, -1, 0),
+ LLVector3(0, 1, 0),
+ LLVector3(0, 0, -1),
+ LLVector3(0, 0, 1)
+ };
+
+ LLVector3 look_upvecs[6] = {
+ LLVector3(0, -1, 0),
+ LLVector3(0, -1, 0),
+ LLVector3(0, 0, -1),
+ LLVector3(0, 0, 1),
+ LLVector3(0, 1, 0),
+ LLVector3(0, -1, 0)
+ };
+
+ // save current view/camera settings so we can restore them afterwards
+ S32 old_occlusion = LLPipeline::sUseOcclusion;
+
+ // set new parameters specific to the 360 requirements
+ LLPipeline::sUseOcclusion = 0;
+ LLViewerCamera* camera = LLViewerCamera::getInstance();
+ LLVector3 old_origin = camera->getOrigin();
+ F32 old_fov = camera->getView();
+ F32 old_aspect = camera->getAspect();
+ F32 old_yaw = camera->getYaw();
+
+ // camera constants for the square, cube map capture image
+ camera->setAspect(1.0); // must set aspect ratio first to avoid undesirable clamping of vertical FoV
+ camera->setView(F_PI_BY_TWO);
+ camera->yaw(0.0);
+ camera->setOrigin(mOrigin);
+
+ // for each of the 6 directions we shoot...
+ for (int i = 0; i < 6; i++)
+ {
+ // set up camera to look in each direction
+ camera->lookDir(look_dirs[i], look_upvecs[i]);
+
+ // call the (very) simplified snapshot code that simply deals
+ // with a single image, no sub-images etc. but is very fast
+ gViewerWindow->simpleSnapshot(rawimages[i],
+ resolution, resolution, 1);
+ }
+
+ // restore original view/camera/avatar settings settings
+ camera->setAspect(old_aspect);
+ camera->setView(old_fov);
+ camera->yaw(old_yaw);
+ camera->setOrigin(old_origin);
+
+ LLPipeline::sUseOcclusion = old_occlusion;
+
+ // ====================================================
+
+ mCubeMap = new LLCubeMap(false);
+ mCubeMap->initEnvironmentMap(rawimages);
+}
+
diff --git a/indra/newview/llenvironmentmap.h b/indra/newview/llenvironmentmap.h
new file mode 100644
index 00000000000..7d951eb678c
--- /dev/null
+++ b/indra/newview/llenvironmentmap.h
@@ -0,0 +1,48 @@
+/**
+ * @file llenvironmentmap.h
+ * @brief LLEnvironmentMap class declaration
+ *
+ * $LicenseInfo:firstyear=2022&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2022, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
+ * $/LicenseInfo$
+ */
+
+#pragma once
+
+#include "llcubemap.h"
+
+class LLEnvironmentMap
+{
+public:
+ // allocate an environment map of the given resolution
+ LLEnvironmentMap();
+
+ // update this environment map
+ // origin - position in agent space to generate environment map from in agent space
+ // resolution - size of cube map to generate
+ void update(const LLVector3& origin, U32 resolution);
+
+ // cube map used to sample this environment map
+ LLPointer<LLCubeMap> mCubeMap;
+
+ // point at which environment map was generated from (in agent space)
+ LLVector3 mOrigin;
+};
+
diff --git a/indra/newview/llviewermenu.cpp b/indra/newview/llviewermenu.cpp
index e3de4267dc4..f5ea060e82f 100644
--- a/indra/newview/llviewermenu.cpp
+++ b/indra/newview/llviewermenu.cpp
@@ -8304,6 +8304,12 @@ void handle_cache_clear_immediately()
LLNotificationsUtil::add("ConfirmClearCache", LLSD(), LLSD(), callback_clear_cache_immediately);
}
+void handle_override_environment_map()
+{
+ gPipeline.overrideEnvironmentMap();
+}
+
+
void handle_web_content_test(const LLSD& param)
{
std::string url = param.asString();
@@ -9402,6 +9408,8 @@ void initialize_menus()
view_listener_t::addMenu(new LLDevelopTextureFetchDebugger(), "Develop.SetTexFetchDebugger");
//Develop (clear cache immediately)
commit.add("Develop.ClearCache", boost::bind(&handle_cache_clear_immediately) );
+ //Develop (override environment map)
+ commit.add("Develop.OverrideEnvironmentMap", boost::bind(&handle_override_environment_map));
// Admin >Object
view_listener_t::addMenu(new LLAdminForceTakeCopy(), "Admin.ForceTakeCopy");
diff --git a/indra/newview/pipeline.cpp b/indra/newview/pipeline.cpp
index 20d6fe39e36..09437473d97 100644
--- a/indra/newview/pipeline.cpp
+++ b/indra/newview/pipeline.cpp
@@ -8191,7 +8191,7 @@ void LLPipeline::bindDeferredShader(LLGLSLShader& shader, LLRenderTarget* light_
channel = shader.enableTexture(LLShaderMgr::ENVIRONMENT_MAP, LLTexUnit::TT_CUBE_MAP);
if (channel > -1)
{
- LLCubeMap* cube_map = gSky.mVOSkyp ? gSky.mVOSkyp->getCubeMap() : NULL;
+ LLCubeMap* cube_map = mEnvironmentMap.mCubeMap.notNull() ? mEnvironmentMap.mCubeMap : gSky.mVOSkyp ? gSky.mVOSkyp->getCubeMap() : NULL;
if (cube_map)
{
cube_map->enable(channel);
@@ -11467,3 +11467,8 @@ void LLPipeline::restoreHiddenObject( const LLUUID& id )
}
}
+void LLPipeline::overrideEnvironmentMap()
+{
+ mEnvironmentMap.update(LLViewerCamera::instance().getOrigin(), 1024);
+}
+
diff --git a/indra/newview/pipeline.h b/indra/newview/pipeline.h
index 62d3ae7a398..150d3c7d58f 100644
--- a/indra/newview/pipeline.h
+++ b/indra/newview/pipeline.h
@@ -38,6 +38,7 @@
#include "llgl.h"
#include "lldrawable.h"
#include "llrendertarget.h"
+#include "llenvironmentmap.h"
#include <stack>
@@ -426,6 +427,9 @@ class LLPipeline
void hideObject( const LLUUID& id );
void restoreHiddenObject( const LLUUID& id );
+ LLEnvironmentMap mEnvironmentMap;
+ void overrideEnvironmentMap();
+
private:
void unloadShaders();
void addToQuickLookup( LLDrawPool* new_poolp );
diff --git a/indra/newview/skins/default/xui/en/menu_viewer.xml b/indra/newview/skins/default/xui/en/menu_viewer.xml
index 8d7cfe1116f..db4e794ed47 100644
--- a/indra/newview/skins/default/xui/en/menu_viewer.xml
+++ b/indra/newview/skins/default/xui/en/menu_viewer.xml
@@ -3250,6 +3250,13 @@ function="World.EnvPreset"
function="ToggleControl"
parameter="RenderHoverGlowEnable" />
</menu_item_check>
+ <menu_item_call
+ enabled="true"
+ label="Override Environment Map"
+ name="Override Environment Map">
+ <menu_item_call.on_click
+ function="Develop.OverrideEnvironmentMap" />
+ </menu_item_call>
<menu_item_separator />
<menu_item_call
--
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