diff options
Diffstat (limited to 'gfx/gl/sceneRenderer.cpp')
| -rw-r--r-- | gfx/gl/sceneRenderer.cpp | 77 |
1 files changed, 41 insertions, 36 deletions
diff --git a/gfx/gl/sceneRenderer.cpp b/gfx/gl/sceneRenderer.cpp index 5799daf..c856279 100644 --- a/gfx/gl/sceneRenderer.cpp +++ b/gfx/gl/sceneRenderer.cpp @@ -14,52 +14,56 @@ static constexpr const std::array<const glm::i8vec4, 4> displayVAOdata {{ {1, -1, 1, 0}, }}; -SceneRenderer::SceneRenderer(glm::ivec2 s, GLuint o) : - camera {{-1250.0F, -1250.0F, 35.0F}, quarter_pi, ratio(s), 0.1F, 10000.0F}, size {s}, output {o}, +SceneRenderer::SceneRenderer(ScreenAbsCoord s, GLuint o) : + camera {{-1250000, -1250000, 35.0F}, quarter_pi, ratio(s), 100, 10000000}, size {s}, output {o}, lighting {lighting_vs, lighting_fs}, shadowMapper {{2048, 2048}} { shader.setViewPort({0, 0, size.x, size.y}); VertexArrayObject {displayVAO}.addAttribs<glm::i8vec4>(displayVBO, displayVAOdata); + const auto configuregdata = [this](const GLuint data, const std::initializer_list<GLint> iformats, + const GLenum format, const GLenum attachment) { + glBindTexture(GL_TEXTURE_2D, data); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + for (const auto iformat : iformats) { + glTexImage2D(GL_TEXTURE_2D, 0, iformat, size.x, size.y, 0, format, GL_BYTE, nullptr); + + glFramebufferTexture2D(GL_FRAMEBUFFER, attachment, GL_TEXTURE_2D, data, 0); + if (glCheckFramebufferStatus(GL_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE) { + return iformat; + } + } + throw std::runtime_error("Framebuffer could not be completed!"); + }; + glBindFramebuffer(GL_FRAMEBUFFER, gBuffer); - const auto configuregdata - = [this](const GLuint data, const std::initializer_list<GLint> formats, const GLenum attachment) { - glBindTexture(GL_TEXTURE_2D, data); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - for (const auto format : formats) { - glTexImage2D(GL_TEXTURE_2D, 0, format, size.x, size.y, 0, GL_RGB, GL_BYTE, nullptr); - - glFramebufferTexture2D(GL_FRAMEBUFFER, attachment, GL_TEXTURE_2D, data, 0); - if (glCheckFramebufferStatus(GL_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE) { - return format; - } - } - throw std::runtime_error("Framebuffer could not be completed!"); - }; - configuregdata(gPosition, {GL_RGB32F}, GL_COLOR_ATTACHMENT0); - configuregdata(gNormal, {GL_RGB8_SNORM, GL_RGB16F}, GL_COLOR_ATTACHMENT1); - configuregdata(gAlbedoSpec, {GL_RGB8}, GL_COLOR_ATTACHMENT2); - configuregdata(gIllumination, {GL_RGB8}, GL_COLOR_ATTACHMENT3); + configuregdata(gPosition, {GL_RGB32I}, GL_RGB_INTEGER, GL_COLOR_ATTACHMENT0); + configuregdata(gNormal, {GL_RGB8_SNORM, GL_RGB16F}, GL_RGB, GL_COLOR_ATTACHMENT1); + configuregdata(gAlbedoSpec, {GL_RGB8}, GL_RGB, GL_COLOR_ATTACHMENT2); + constexpr std::array<unsigned int, 3> attachments { + GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1, GL_COLOR_ATTACHMENT2}; + glDrawBuffers(attachments.size(), attachments.data()); glBindRenderbuffer(GL_RENDERBUFFER, depth); glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT, size.x, size.y); glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, depth); + glBindFramebuffer(GL_FRAMEBUFFER, gBufferIll); + configuregdata(gIllumination, {GL_RGB8}, GL_RGB, GL_COLOR_ATTACHMENT0); + glDrawBuffer(GL_COLOR_ATTACHMENT0); + glBindFramebuffer(GL_FRAMEBUFFER, output); } void SceneRenderer::render(const SceneProvider & scene) const { - shader.setViewProjection(camera.getViewProjection()); + shader.setViewProjection(camera.getPosition(), camera.getViewProjection()); glViewport(0, 0, size.x, size.y); // Geometry pass glBindFramebuffer(GL_FRAMEBUFFER, gBuffer); - static constexpr std::array<unsigned int, 3> attachments { - GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1, GL_COLOR_ATTACHMENT2}; - glDrawBuffers(attachments.size(), attachments.data()); glEnable(GL_BLEND); glEnable(GL_CULL_FACE); glCullFace(GL_BACK); @@ -70,7 +74,7 @@ SceneRenderer::render(const SceneProvider & scene) const scene.content(shader); // Illumination pass - glDrawBuffer(GL_COLOR_ATTACHMENT3); + glBindFramebuffer(GL_FRAMEBUFFER, gBufferIll); glBlendFunc(GL_ONE, GL_ONE); glActiveTexture(GL_TEXTURE0); glBindTexture(GL_TEXTURE_2D, gPosition); @@ -97,23 +101,22 @@ SceneRenderer::render(const SceneProvider & scene) const } void -SceneRenderer::setAmbientLight(const glm::vec3 & colour) const +SceneRenderer::setAmbientLight(const RGB & colour) const { - glBindFramebuffer(GL_FRAMEBUFFER, gBuffer); + glBindFramebuffer(GL_FRAMEBUFFER, gBufferIll); glClearColor(colour.r, colour.g, colour.b, 1.0F); glClear(GL_COLOR_BUFFER_BIT); } void -SceneRenderer::setDirectionalLight( - const glm::vec3 & colour, const glm::vec3 & direction, const SceneProvider & scene) const +SceneRenderer::setDirectionalLight(const RGB & colour, const Direction3D & direction, const SceneProvider & scene) const { if (colour.r > 0 || colour.g > 0 || colour.b > 0) { const auto lvp = shadowMapper.update(scene, direction, camera); - glBindFramebuffer(GL_FRAMEBUFFER, gBuffer); + glBindFramebuffer(GL_FRAMEBUFFER, gBufferIll); glViewport(0, 0, size.x, size.y); dirLight.use(); - dirLight.setDirectionalLight(colour, direction, lvp.projections, lvp.regions, lvp.maps); + dirLight.setDirectionalLight(colour, direction, camera.getPosition(), lvp.projections, lvp.regions, lvp.maps); renderQuad(); } } @@ -128,20 +131,22 @@ SceneRenderer::renderQuad() const SceneRenderer::DirectionalLightProgram::DirectionalLightProgram() : Program {lighting_vs, directionalLight_fs}, directionLoc {*this, "lightDirection"}, - colourLoc {*this, "lightColour"}, lightViewProjectionLoc {*this, "lightViewProjection"}, + colourLoc {*this, "lightColour"}, lightPointLoc {*this, "lightPoint"}, + lightViewProjectionLoc {*this, "lightViewProjection"}, lightViewProjectionCountLoc {*this, "lightViewProjectionCount"}, lightViewShadowMapRegionLoc {*this, "shadowMapRegion"} { } void -SceneRenderer::DirectionalLightProgram::setDirectionalLight(const glm::vec3 & c, const glm::vec3 & d, - const std::span<const glm::mat4x4> lvp, const std::span<const glm::vec4> shadowMapRegions, - std::size_t maps) const +SceneRenderer::DirectionalLightProgram::setDirectionalLight(const RGB & c, const Direction3D & d, + const GlobalPosition3D & p, const std::span<const glm::mat4x4> lvp, + const std::span<const TextureRelRegion> shadowMapRegions, std::size_t maps) const { glUniform3fv(colourLoc, 1, glm::value_ptr(c)); const auto nd = glm::normalize(d); glUniform3fv(directionLoc, 1, glm::value_ptr(nd)); + glUniform3iv(lightPointLoc, 1, glm::value_ptr(p)); glUniform1ui(lightViewProjectionCountLoc, static_cast<GLuint>(maps)); glUniformMatrix4fv(lightViewProjectionLoc, static_cast<GLsizei>(maps), GL_FALSE, glm::value_ptr(lvp.front())); glUniform4fv(lightViewShadowMapRegionLoc, static_cast<GLsizei>(maps), glm::value_ptr(shadowMapRegions.front())); |