Joshua Moerman
9 years ago
14 changed files with 187 additions and 212 deletions
@ -1 +1 @@ |
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Subproject commit bb8a9ab41750803845dfc540b183d2647e2da8e8 |
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Subproject commit 8845eefc8631ea9bdfc01ed5ff6b598cd65b69ce |
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@ -1,91 +1,18 @@ |
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#pragma once |
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#include <moggle/core/gl.hpp> |
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#include <moggle/core/fbo.hpp> |
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#include "renderbuffer.hpp" |
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#include "texture.hpp" |
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#include <vector> |
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/*
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* One can attach either an external renderbuffer/texture, or move one into fbo |
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* In the latter case, the fbo will own the renderbuffer/texture |
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* |
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* Attachment can be one of: GL_COLOR_ATTACHMENT0, GL_DEPTH_ATTACHMENT, or GL_STENCIL_ATTACHMENT |
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*/ |
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namespace moggle { |
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struct fbo { |
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explicit fbo(bool create_now = false) { |
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if(create_now) create(); |
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} |
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~fbo() { destroy(); } |
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fbo(fbo const &) = delete; |
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fbo & operator=(fbo const&) = delete; |
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fbo(fbo && r) : id(r.id) { r.id = 0; } |
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fbo & operator=(fbo && r) { std::swap(id, r.id); return *this; } |
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bool created() const { return id; } |
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explicit operator bool() const { return created(); } |
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void create(){ if(!id) gl::generate_framebuffers(1, &id); } |
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void destroy(){ gl::delete_renderbuffers(1, &id); id = 0; } |
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void bind() { |
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create(); |
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gl::bind_framebuffer(GL_FRAMEBUFFER, id); |
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} |
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GLuint get_id() const { |
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return id; |
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} |
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// Only well defined if the fbo owns the texture
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texture & get_texture() { |
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return textures.front(); |
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} |
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void attach(GLenum attachment, renderbuffer const & rb){ |
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bind(); |
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gl::framebuffer_renderbuffer(GL_FRAMEBUFFER, attachment, GL_RENDERBUFFER, rb.get_id()); |
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} |
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void attach(GLenum attachment, renderbuffer && rb){ |
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renderbuffers.push_back(std::move(rb)); |
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attach(attachment, renderbuffers.back()); |
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} |
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void attach(GLenum attachment, GLenum textarget, texture const & t){ |
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bind(); |
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gl::framebuffer_texture_2d(GL_FRAMEBUFFER, attachment, textarget, t.get_id(), 0); |
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} |
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void attach(GLenum attachment, GLenum textarget, texture && t){ |
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textures.push_back(std::move(t)); |
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attach(attachment, textarget, textures.back()); |
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} |
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void clear(GLenum bufferbits){ |
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bind(); |
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gl::clear(bufferbits); |
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} |
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static fbo create_default(GLsizei width, GLsizei height){ |
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inline fbo create_default_fbo(GLsizei width, GLsizei height){ |
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fbo f; |
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f.attach(GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture::create(width, height, GL_RGBA32F)); |
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f.attach(GL_DEPTH_ATTACHMENT, renderbuffer::create(width, height, 1, GL_DEPTH_COMPONENT16)); |
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f.attach(GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, create_texture(width, height, GL_RGBA32F)); |
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f.attach(GL_DEPTH_ATTACHMENT, create_renderbuffer(width, height, 1, GL_DEPTH_COMPONENT16)); |
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f.clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
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return f; |
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} |
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private: |
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std::vector<renderbuffer> renderbuffers; |
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std::vector<texture> textures; |
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GLuint id = 0; |
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}; |
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} |
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} |
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@ -0,0 +1,45 @@ |
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#pragma once |
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#include <moggle/math/matrix.hpp> |
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#include <boost/math/quaternion.hpp> |
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#include <limits> |
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#include <stdexcept> |
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// Will create a R3 rotation if the quaternion is normalized
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// Typical use is: mat4 matrix = quaternion_to_R3_rotation(normalize(foo));
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template<typename T> |
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moggle::matrix4<T> quaternion_to_R3_rotation(boost::math::quaternion<T> const & q){ |
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using ::std::numeric_limits; |
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T a = q.R_component_1(); |
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T b = q.R_component_2(); |
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T c = q.R_component_3(); |
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T d = q.R_component_4(); |
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T aa = a*a; |
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T ab = a*b; |
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T ac = a*c; |
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T ad = a*d; |
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T bb = b*b; |
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T bc = b*c; |
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T bd = b*d; |
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T cc = c*c; |
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T cd = c*d; |
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T dd = d*d; |
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return { |
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(aa+bb-cc-dd), 2*(-ad+bc), 2*(ac+bd), 0, |
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2*(ad+bc), (aa-bb+cc-dd), 2*(-ab+cd), 0, |
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2*(-ac+bd), 2*(ab+cd), (aa-bb-cc+dd), 0, |
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0, 0, 0, 1 |
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}; |
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} |
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namespace boost { |
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namespace math { |
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template <typename T> |
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quaternion<T> normalize(quaternion<T> q){ |
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return q /= abs(q); |
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} |
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} |
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} |
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@ -1,57 +1,14 @@ |
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#pragma once |
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#include <moggle/core/gl.hpp> |
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#include <moggle/core/renderbuffer.hpp> |
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namespace moggle { |
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struct renderbuffer { |
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explicit renderbuffer(bool create_now = false) { |
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if(create_now) create(); |
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} |
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~renderbuffer() { destroy(); } |
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renderbuffer(renderbuffer const &) = delete; |
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renderbuffer & operator=(renderbuffer const&) = delete; |
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renderbuffer(renderbuffer && r) : id(r.id) { r.id = 0; } |
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renderbuffer & operator=(renderbuffer && r) { std::swap(id, r.id); return *this; } |
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bool created() const { return id; } |
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explicit operator bool() const { return created(); } |
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void create(){ if(!id) gl::generate_renderbuffers(1, &id); } |
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void destroy(){ gl::delete_renderbuffers(1, &id); id = 0; } |
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void bind() { |
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create(); |
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gl::bind_renderbuffer(GL_RENDERBUFFER, id); |
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} |
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GLuint get_id() const { |
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return id; |
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} |
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void storage(GLenum target, GLenum internalformat, GLsizei width, GLsizei height){ |
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bind(); |
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gl::renderbuffer_storage(target, internalformat, width, height); |
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} |
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void storage_multisample(GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height){ |
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bind(); |
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// TODO: wrap this call
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glRenderbufferStorageMultisample(target, samples, internalformat, width, height); |
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} |
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static renderbuffer create(GLsizei width, GLsizei height, GLsizei samples = 1, GLenum format = GL_RGBA4){ |
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inline renderbuffer create_renderbuffer(GLsizei width, GLsizei height, GLsizei samples = 1, GLenum format = GL_RGBA4){ |
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renderbuffer r; |
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if(samples <= 1) r.storage(GL_RENDERBUFFER, format, width, height); |
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else r.storage_multisample(GL_RENDERBUFFER, samples, format, width, height); |
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return r; |
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} |
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private: |
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GLuint id = 0; |
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}; |
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} |
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} |
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@ -1,62 +1,14 @@ |
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#pragma once |
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#include <moggle/core/gl.hpp> |
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#include <moggle/core/gl_type_traits.hpp> |
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/*
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* NOTE: |
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* in glTexImage2D, border MUST be 0, so this parameter is left out in this interface. |
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*/ |
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#include <moggle/core/texture.hpp> |
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namespace moggle { |
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struct texture { |
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explicit texture(bool create_now = false) { |
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if(create_now) create(); |
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} |
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~texture() { destroy(); } |
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texture(texture const &) = delete; |
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texture & operator=(texture const&) = delete; |
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texture(texture && t) : id(t.id) { t.id = 0; } |
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texture & operator=(texture && t) { std::swap(id, t.id); return *this; } |
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bool created() const { return id; } |
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explicit operator bool() const { return created(); } |
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void create(){ if(!id) gl::generate_textures(1, &id); } |
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void destroy(){ gl::delete_textures(1, &id); id = 0; } |
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void bind(GLenum target) { |
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create(); |
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gl::bind_texture(target, id); |
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} |
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GLuint get_id() const { return id; } |
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template <typename T> |
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void image_2d(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLenum format, const T * data){ |
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bind(target); |
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auto type = gl_type_traits<T>::gl_constant; |
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gl::texture_image_2d(target, level, internalformat, width, height, 0, format, type, data); |
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} |
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void image_2d(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, std::nullptr_t){ |
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bind(target); |
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gl::texture_image_2d(target, level, internalformat, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr); |
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} |
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//! creates empty texture
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static texture create(GLsizei width, GLsizei height, GLint internalformat = GL_RGBA, GLenum target = GL_TEXTURE_2D){ |
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//! creates empty texture
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inline texture create_texture(GLsizei width, GLsizei height, GLint internalformat = GL_RGBA, GLenum target = GL_TEXTURE_2D){ |
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texture t; |
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t.image_2d(target, 0, internalformat, width, height, nullptr); |
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return t; |
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} |
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private: |
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GLuint id = 0; |
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}; |
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} |
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} |
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@ -1,10 +1,13 @@ |
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#version 330 |
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in vec4 position; |
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uniform mat4 modelmatrix; |
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out float mx; |
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void main(){ |
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gl_Position = vec4(1); |
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gl_Position.xy = 0.04*position.xy; |
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gl_Position = 0.04*modelmatrix*(position - vec4(0.0, 0.0, 25.0, 0.0)); |
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// reset depth |
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gl_Position.zw = vec2(1.0); |
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mx = cos(0.1337*position.z); |
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} |
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