diff options
Diffstat (limited to 'gfx/gl/shadowMapper.cpp')
| -rw-r--r-- | gfx/gl/shadowMapper.cpp | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/gfx/gl/shadowMapper.cpp b/gfx/gl/shadowMapper.cpp index 07db6a1..66905df 100644 --- a/gfx/gl/shadowMapper.cpp +++ b/gfx/gl/shadowMapper.cpp @@ -131,12 +131,15 @@ ShadowMapper::update(const SceneProvider & scene, const Direction3D & dir, const glCullFace(GL_FRONT); const auto lightView = glm::lookAt(camera.getPosition(), camera.getPosition() + dir, up); + const auto lightViewDir = glm::lookAt(origin, dir, up); + const auto lightViewPoint = camera.getPosition(); const auto bandViewExtents = getBandViewExtents(camera, lightView); Definitions out; std::transform(bandViewExtents.begin(), std::prev(bandViewExtents.end()), std::next(bandViewExtents.begin()), DefinitionsInserter {out}, - [&scene, this, &lightView, bands = bandViewExtents.size() - 2, &out](const auto & near, const auto & far) { + [&scene, this, &lightView, bands = bandViewExtents.size() - 2, &out, &lightViewPoint, &lightViewDir]( + const auto & near, const auto & far) { const auto extents_minmax = [extents = std::span {near.begin(), far.end()}](auto && comp) { const auto mm = std::minmax_element(extents.begin(), extents.end(), comp); return std::make_pair(comp.get(*mm.first), comp.get(*mm.second)); @@ -146,16 +149,16 @@ ShadowMapper::update(const SceneProvider & scene, const Direction3D & dir, const return glm::ortho(x.first, x.second, y.first, y.second, -z.second, -z.first); }(extents_minmax(CompareBy {0}), extents_minmax(CompareBy {1}), extents_minmax(CompareBy {2})); - const auto lightViewProjection = lightProjection * lightView; - fixedPoint.setViewProjection(lightViewProjection); - dynamicPoint.setViewProjection(lightViewProjection); - dynamicPointInst.setViewProjection(lightViewProjection); + const auto lightViewDirProjection = lightProjection * lightViewDir; + fixedPoint.setViewProjection(lightViewPoint, lightViewDirProjection); + dynamicPoint.setViewProjection(lightViewPoint, lightViewDirProjection); + dynamicPointInst.setViewProjection(lightViewPoint, lightViewDirProjection); const auto & viewport = viewports[bands][out.maps]; glViewport(size.x >> viewport.x, size.y >> viewport.y, size.x >> viewport.z, size.y >> viewport.w); scene.shadows(*this); - return std::make_pair(lightViewProjection, shadowMapRegions[bands][out.maps]); + return std::make_pair(lightProjection * lightView, shadowMapRegions[bands][out.maps]); }); glCullFace(GL_BACK); @@ -163,13 +166,17 @@ ShadowMapper::update(const SceneProvider & scene, const Direction3D & dir, const return out; } -ShadowMapper::FixedPoint::FixedPoint(const Shader & vs) : Program {vs}, viewProjectionLoc {*this, "viewProjection"} { } +ShadowMapper::FixedPoint::FixedPoint(const Shader & vs) : + Program {vs}, viewProjectionLoc {*this, "viewProjection"}, viewPointLoc {*this, "viewPoint"} +{ +} void -ShadowMapper::FixedPoint::setViewProjection(const glm::mat4 & viewProjection) const +ShadowMapper::FixedPoint::setViewProjection(const GlobalPosition3D viewPoint, const glm::mat4 & viewProjection) const { use(); glUniformMatrix4fv(viewProjectionLoc, 1, GL_FALSE, glm::value_ptr(viewProjection)); + glUniform3iv(viewPointLoc, 1, glm::value_ptr(viewPoint)); } void @@ -179,16 +186,17 @@ ShadowMapper::FixedPoint::use() const } ShadowMapper::DynamicPoint::DynamicPoint() : - Program {shadowDynamicPoint_vs}, viewProjectionLoc {*this, "viewProjection"}, modelLoc {*this, "model"}, - modelPosLoc {*this, "modelPos"} + Program {shadowDynamicPoint_vs}, viewProjectionLoc {*this, "viewProjection"}, viewPointLoc {*this, "viewPoint"}, + modelLoc {*this, "model"}, modelPosLoc {*this, "modelPos"} { } void -ShadowMapper::DynamicPoint::setViewProjection(const glm::mat4 & viewProjection) const +ShadowMapper::DynamicPoint::setViewProjection(const GlobalPosition3D viewPoint, const glm::mat4 & viewProjection) const { glUseProgram(*this); glUniformMatrix4fv(viewProjectionLoc, 1, GL_FALSE, glm::value_ptr(viewProjection)); + glUniform3iv(viewPointLoc, 1, glm::value_ptr(viewPoint)); } void |