diff options
Diffstat (limited to 'gfx/gl/shadowMapper.cpp')
| -rw-r--r-- | gfx/gl/shadowMapper.cpp | 85 |
1 files changed, 46 insertions, 39 deletions
diff --git a/gfx/gl/shadowMapper.cpp b/gfx/gl/shadowMapper.cpp index 55d986c..07db6a1 100644 --- a/gfx/gl/shadowMapper.cpp +++ b/gfx/gl/shadowMapper.cpp @@ -15,7 +15,7 @@ #include <tuple> #include <vector> -ShadowMapper::ShadowMapper(const glm::ivec2 & s) : +ShadowMapper::ShadowMapper(const TextureAbsCoord & s) : fixedPoint {shadowFixedPoint_vs}, dynamicPointInst {shadowDynamicPointInst_vs}, size {s} { glBindTexture(GL_TEXTURE_2D, depthMap); @@ -24,7 +24,7 @@ ShadowMapper::ShadowMapper(const glm::ivec2 & s) : glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER); - static constexpr glm::vec4 border {std::numeric_limits<float>::infinity()}; + static constexpr RGBA border {std::numeric_limits<RGBA::value_type>::infinity()}; glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_BORDER_COLOR, glm::value_ptr(border)); glBindFramebuffer(GL_FRAMEBUFFER, depthMapFBO); @@ -37,7 +37,7 @@ ShadowMapper::ShadowMapper(const glm::ivec2 & s) : glBindFramebuffer(GL_FRAMEBUFFER, 0); } -constexpr std::array<std::array<glm::ivec4, ShadowMapper::SHADOW_BANDS>, ShadowMapper::SHADOW_BANDS> viewports {{ +constexpr std::array<std::array<TextureAbsRegion, ShadowMapper::SHADOW_BANDS>, ShadowMapper::SHADOW_BANDS> viewports {{ {{ {31, 31, 0, 0}, // full }}, @@ -57,33 +57,34 @@ constexpr std::array<std::array<glm::ivec4, ShadowMapper::SHADOW_BANDS>, ShadowM {1, 1, 1, 1}, // upper right }}, }}; -constexpr std::array<std::array<glm::vec4, ShadowMapper::SHADOW_BANDS>, ShadowMapper::SHADOW_BANDS> shadowMapRegions {{ - {{ - {0.5F, 0.5F, 0.5F, 0.5F}, // full - }}, - {{ - {0.5F, 0.25F, 0.5F, 0.25F}, // lower half - {0.5F, 0.25F, 0.5F, 0.75F}, // upper half - }}, - {{ - {0.5F, 0.25F, 0.5F, 0.25F}, // lower half - {0.25F, 0.25F, 0.25F, 0.75F}, // upper left - {0.25F, 0.25F, 0.75F, 0.75F}, // upper right - }}, - - {{ - {0.25F, 0.25F, 0.25F, 0.25F}, // lower left - {0.25F, 0.25F, 0.75F, 0.25F}, // lower right - {0.25F, 0.25F, 0.25F, 0.75F}, // upper left - {0.25F, 0.25F, 0.75F, 0.75F}, // upper right - }}, -}}; +constexpr std::array<std::array<TextureRelRegion, ShadowMapper::SHADOW_BANDS>, ShadowMapper::SHADOW_BANDS> + shadowMapRegions {{ + {{ + {0.5F, 0.5F, 0.5F, 0.5F}, // full + }}, + {{ + {0.5F, 0.25F, 0.5F, 0.25F}, // lower half + {0.5F, 0.25F, 0.5F, 0.75F}, // upper half + }}, + {{ + {0.5F, 0.25F, 0.5F, 0.25F}, // lower half + {0.25F, 0.25F, 0.25F, 0.75F}, // upper left + {0.25F, 0.25F, 0.75F, 0.75F}, // upper right + }}, + + {{ + {0.25F, 0.25F, 0.25F, 0.25F}, // lower left + {0.25F, 0.25F, 0.75F, 0.25F}, // lower right + {0.25F, 0.25F, 0.25F, 0.75F}, // upper left + {0.25F, 0.25F, 0.75F, 0.75F}, // upper right + }}, + }}; constexpr std::array<float, ShadowMapper::SHADOW_BANDS + 1> shadowBands { - 1.F, - 250.F, - 750.F, - 2500.F, - 10000.F, + 1000.F, + 250000.F, + 750000.F, + 2500000.F, + 10000000.F, }; static_assert(viewports.size() == shadowMapRegions.size()); static_assert(shadowBands.size() == shadowMapRegions.size() + 1); @@ -94,22 +95,24 @@ struct DefinitionsInserter { { return out.maps++; }; + auto operator*() { return std::tie(out.projections[out.maps], out.regions[out.maps]); } + ShadowMapper::Definitions & out; }; -std::vector<std::array<glm::vec3, 4>> +std::vector<std::array<Position3D, 4>> ShadowMapper::getBandViewExtents(const Camera & camera, const glm::mat4 & lightView) { - std::vector<std::array<glm::vec3, 4>> bandViewExtents; + std::vector<std::array<Position3D, 4>> bandViewExtents; for (const auto dist : shadowBands) { const auto extents = camera.extentsAtDist(dist); - bandViewExtents.emplace_back(extents * [&lightView](const auto & e) -> glm::vec3 { - return lightView * glm::vec4(glm::vec3 {e}, 1); + bandViewExtents.emplace_back(extents * [&lightView](const auto & e) -> Position3D { + return lightView * glm::vec4(Position3D {e}, 1); }); if (std::none_of(extents.begin(), extents.end(), [targetDist = dist * 0.99F](const glm::vec4 & e) { return e.w > targetDist; @@ -121,7 +124,7 @@ ShadowMapper::getBandViewExtents(const Camera & camera, const glm::mat4 & lightV } ShadowMapper::Definitions -ShadowMapper::update(const SceneProvider & scene, const glm::vec3 & dir, const Camera & camera) const +ShadowMapper::update(const SceneProvider & scene, const Direction3D & dir, const Camera & camera) const { glBindFramebuffer(GL_FRAMEBUFFER, depthMapFBO); glClear(GL_DEPTH_BUFFER_BIT); @@ -161,12 +164,14 @@ ShadowMapper::update(const SceneProvider & scene, const glm::vec3 & dir, const C } ShadowMapper::FixedPoint::FixedPoint(const Shader & vs) : Program {vs}, viewProjectionLoc {*this, "viewProjection"} { } + void ShadowMapper::FixedPoint::setViewProjection(const glm::mat4 & viewProjection) const { use(); glUniformMatrix4fv(viewProjectionLoc, 1, GL_FALSE, glm::value_ptr(viewProjection)); } + void ShadowMapper::FixedPoint::use() const { @@ -174,26 +179,28 @@ ShadowMapper::FixedPoint::use() const } ShadowMapper::DynamicPoint::DynamicPoint() : - Program {shadowDynamicPoint_vs}, viewProjectionLoc {*this, "viewProjection"}, modelLoc {*this, "model"} + Program {shadowDynamicPoint_vs}, viewProjectionLoc {*this, "viewProjection"}, modelLoc {*this, "model"}, + modelPosLoc {*this, "modelPos"} { } + void ShadowMapper::DynamicPoint::setViewProjection(const glm::mat4 & viewProjection) const { glUseProgram(*this); glUniformMatrix4fv(viewProjectionLoc, 1, GL_FALSE, glm::value_ptr(viewProjection)); } + void ShadowMapper::DynamicPoint::use(const Location & location) const { glUseProgram(*this); setModel(location); - const auto model = glm::translate(location.pos) * rotate_ypr(location.rot); - glUniformMatrix4fv(modelLoc, 1, GL_FALSE, glm::value_ptr(model)); } + void ShadowMapper::DynamicPoint::setModel(const Location & location) const { - const auto model = glm::translate(location.pos) * rotate_ypr(location.rot); - glUniformMatrix4fv(modelLoc, 1, GL_FALSE, glm::value_ptr(model)); + glUniformMatrix4fv(modelLoc, 1, GL_FALSE, glm::value_ptr(rotate_ypr(location.rot))); + glUniform3iv(modelPosLoc, 1, glm::value_ptr(location.pos)); } |