From d8bf256cf18327f48061ed875c98109200288733 Mon Sep 17 00:00:00 2001 From: jjesswan Date: Mon, 6 May 2024 19:11:27 -0400 Subject: trial with vbo --- src/graphics/shape.cpp | 52 +++++++++++++++++++++++++++++++++++++++---------- src/graphics/shape.h | 10 ++++++++++ src/ocean/ocean_alt.cpp | 18 +++++++++++++++-- src/ocean/ocean_alt.h | 7 +++++-- 4 files changed, 73 insertions(+), 14 deletions(-) (limited to 'src') diff --git a/src/graphics/shape.cpp b/src/graphics/shape.cpp index 7fa5c18..5e4a69d 100644 --- a/src/graphics/shape.cpp +++ b/src/graphics/shape.cpp @@ -126,24 +126,31 @@ void Shape::setFoamInputs(const vector &vertices, const vector const vector &waveDirs, const vector &textures){ - vector verts; - vector norms; +// vector verts; +// vector norms; - vector tex; - vector colors; - updateMesh(m_faces, vertices, verts, norms, colors); +// vector tex; +// vector colors; + m_vertices.clear(); + copy(vertices.begin(), vertices.end(), back_inserter(m_vertices)); + + std::vector verts; + std::vector ks; + std::vector waves; + + updateMeshFoam(m_faces, vertices, waveDirs, wavelengths, verts, ks, waves); //updateFoam(m_faces, vertices, textureCoords, verts, tex, colors); glBindBuffer(GL_ARRAY_BUFFER, m_surfaceVbo); - glBufferData(GL_ARRAY_BUFFER, sizeof(float) * ((verts.size() * 3) + (wavelengths.size() * 1) + (waveDirs.size() * 2) + (tex.size() * 2) + (norms.size() * 3)), nullptr, GL_DYNAMIC_DRAW); + glBufferData(GL_ARRAY_BUFFER, sizeof(float) * ((verts.size() * 3) + (waves.size() * 1)), nullptr, GL_DYNAMIC_DRAW); glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(float) * verts.size() * 3, static_cast(verts.data())); - glBufferSubData(GL_ARRAY_BUFFER, sizeof(float) * verts.size() * 3, sizeof(float) * wavelengths.size() * 1, static_cast(wavelengths.data())); - glBufferSubData(GL_ARRAY_BUFFER, sizeof(float) * ((verts.size() * 3) + (wavelengths.size() * 1)), sizeof(float) * waveDirs.size() * 2, static_cast(waveDirs.data())); - glBufferSubData(GL_ARRAY_BUFFER, sizeof(float) * ((verts.size() * 3) + (wavelengths.size() * 1) + (waveDirs.size() * 2)), sizeof(float) * tex.size() * 2, static_cast(tex.data())); - glBufferSubData(GL_ARRAY_BUFFER, sizeof(float) * ((verts.size() * 3) + (wavelengths.size() * 1) + (waveDirs.size() * 2) + (tex.size() * 2)), sizeof(float) * (norms.size() * 3), static_cast(norms.data())); + glBufferSubData(GL_ARRAY_BUFFER, sizeof(float) * verts.size() * 3, sizeof(float) * waves.size() * 1, static_cast(waves.data())); + //glBufferSubData(GL_ARRAY_BUFFER, sizeof(float) * ((verts.size() * 3) + (waves.size() * 1)), sizeof(float) * ks.size() * 2, static_cast(ks.data())); + //glBufferSubData(GL_ARRAY_BUFFER, sizeof(float) * ((verts.size() * 3) + (wavelengths.size() * 1) + (waveDirs.size() * 2)), sizeof(float) * tex.size() * 2, static_cast(tex.data())); + // glBufferSubData(GL_ARRAY_BUFFER, sizeof(float) * ((verts.size() * 3) + (wavelengths.size() * 1) + (waveDirs.size() * 2) + (tex.size() * 2)), sizeof(float) * (norms.size() * 3), static_cast(norms.data())); glBindBuffer(GL_ARRAY_BUFFER, 0); } @@ -354,6 +361,31 @@ void Shape::updateMesh(const std::vector &faces, } } +void Shape::updateMeshFoam(const std::vector &faces, + const std::vector &vertices, + const std::vector &k_vectors, + const std::vector &wavelengths, + + std::vector &verts, + std::vector &ks, + std::vector &waves) +{ + verts.reserve(faces.size() * 3); + ks.reserve(faces.size() * 3); + waves.reserve(faces.size() * 3); + + + for (const Eigen::Vector3i& face : faces) { + + for (auto& v: {face[0], face[1], face[2]}) { + ks.push_back(k_vectors[v]); + verts.push_back(vertices[v]); + waves.push_back(wavelengths[v]); + + } + } +} + void Shape::updateFoam(const std::vector &faces, const std::vector &vertices, const std::vector &texCoords, diff --git a/src/graphics/shape.h b/src/graphics/shape.h index ef1c532..71c7bc4 100644 --- a/src/graphics/shape.h +++ b/src/graphics/shape.h @@ -41,6 +41,16 @@ public: std::vector& tex, std::vector& colors); + void updateMeshFoam(const std::vector &faces, + const std::vector &vertices, + const std::vector &k_vectors, + const std::vector &wavelengths, + + std::vector &verts, + std::vector &ks, + std::vector &waves); + + void setModelMatrix(const Eigen::Affine3f &model); diff --git a/src/ocean/ocean_alt.cpp b/src/ocean/ocean_alt.cpp index e2d3000..feed479 100644 --- a/src/ocean/ocean_alt.cpp +++ b/src/ocean/ocean_alt.cpp @@ -219,7 +219,7 @@ Eigen::Vector2d ocean_alt::get_k_vector(int n_prime, int m_prime){ double M_ = (double)num_cols; double k_x = (2*M_PI*n_ - M_PI*N_)/Lx; - double k_z = (2*M_PI*m_ - M_PI*M_)/Lz; + double k_z = (2*M_PI*m_ - M_PI*M_)/Lz; return Eigen::Vector2d(k_x, k_z); } @@ -280,6 +280,17 @@ Eigen::Vector2d ocean_alt::complex_exp(double exponent){ std::vector ocean_alt::get_vertices() { std::vector vertices = std::vector(); + if (iterations < 4){ + for (int i = 0; i < N; i++){ + Eigen::Vector2d amplitude = m_current_h[i]; + float height = amplitude[0]; + + if (height < min) min = height; + if (height > max) max = height; + + } + iterations ++; + } for (int i = 0; i < N; i++){ Eigen::Vector2d horiz_pos = spacing*m_waveIndexConstants[i].base_horiz_pos; Eigen::Vector2d amplitude = m_current_h[i]; @@ -317,7 +328,10 @@ std::vector ocean_alt::get_vertices() vertices.push_back(Eigen::Vector3f(horiz_pos[0] + disp[0], height, horiz_pos[1] + disp[1])); m_normals[i] = norm.normalized();//Eigen::Vector3f(-slope[0], 1.0, -slope[1]).normalized(); //std::cout << "normal: " << m_normals[i] << std::endl - m_foam_constants.wavelengths[i] = 2.f *M_PI * m_slopes[i].dot(m_slopes[i]) / Lx; + Eigen::Vector2i m_n = index_1d_to_2d(i); + + + m_foam_constants.wavelengths[i] = 1.f;//(height - 0) / (max -0);//M_PI * m_slopes[i].dot(m_slopes[i]) / ((float) m_n[0] / Lx); //std::cout << m_foam_constants.wavelengths[i] << std::endl; diff --git a/src/ocean/ocean_alt.h b/src/ocean/ocean_alt.h index 0673bbf..ad6e69e 100644 --- a/src/ocean/ocean_alt.h +++ b/src/ocean/ocean_alt.h @@ -75,8 +75,8 @@ private: - const double Lx = 1024.0; - const double Lz = 1024.0; + const double Lx = 512.0; + const double Lz = 512.0; const int num_rows = 256; const int num_cols = 256; @@ -101,6 +101,9 @@ private: FoamConstants m_foam_constants; + float max = 0; + float min = 0; + int iterations = 0; -- cgit v1.2.3-70-g09d2