From d8bf256cf18327f48061ed875c98109200288733 Mon Sep 17 00:00:00 2001
From: jjesswan <jessica_wan@brown.edu>
Date: Mon, 6 May 2024 19:11:27 -0400
Subject: trial with vbo

---
 src/graphics/shape.cpp | 52 ++++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 42 insertions(+), 10 deletions(-)

(limited to 'src/graphics/shape.cpp')

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<Vector3f> &vertices, const vector<float>
                           const vector<Vector2f> &waveDirs, const vector<Vector2f> &textures){
 
 
-    vector<Vector3f> verts;
-    vector<Vector3f> norms;
+//    vector<Vector3f> verts;
+//    vector<Vector3f> norms;
 
-    vector<Vector2f> tex;
-    vector<Vector3f> colors;
-    updateMesh(m_faces, vertices, verts, norms, colors);
+//    vector<Vector2f> tex;
+//    vector<Vector3f> colors;
+    m_vertices.clear();
+    copy(vertices.begin(), vertices.end(), back_inserter(m_vertices));
+
+    std::vector<Eigen::Vector3f> verts;
+    std::vector<Eigen::Vector2f> ks;
+    std::vector<float> 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<const void *>(verts.data()));
-    glBufferSubData(GL_ARRAY_BUFFER, sizeof(float) * verts.size() * 3, sizeof(float) * wavelengths.size() * 1, static_cast<const void *>(wavelengths.data()));
-    glBufferSubData(GL_ARRAY_BUFFER, sizeof(float) * ((verts.size() * 3) + (wavelengths.size() * 1)), sizeof(float) * waveDirs.size() * 2, static_cast<const void *>(waveDirs.data()));
-    glBufferSubData(GL_ARRAY_BUFFER, sizeof(float) * ((verts.size() * 3) + (wavelengths.size() * 1) + (waveDirs.size() * 2)), sizeof(float) * tex.size() * 2, static_cast<const void *>(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<const void *>(norms.data()));
+    glBufferSubData(GL_ARRAY_BUFFER, sizeof(float) * verts.size() * 3, sizeof(float) * waves.size() * 1, static_cast<const void *>(waves.data()));
+    //glBufferSubData(GL_ARRAY_BUFFER, sizeof(float) * ((verts.size() * 3) + (waves.size() * 1)), sizeof(float) * ks.size() * 2, static_cast<const void *>(ks.data()));
+    //glBufferSubData(GL_ARRAY_BUFFER, sizeof(float) * ((verts.size() * 3) + (wavelengths.size() * 1) + (waveDirs.size() * 2)), sizeof(float) * tex.size() * 2, static_cast<const void *>(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<const void *>(norms.data()));
 
     glBindBuffer(GL_ARRAY_BUFFER, 0);
 }
@@ -354,6 +361,31 @@ void Shape::updateMesh(const std::vector<Eigen::Vector3i> &faces,
     }
 }
 
+void Shape::updateMeshFoam(const std::vector<Eigen::Vector3i> &faces,
+                       const std::vector<Eigen::Vector3f> &vertices,
+                       const std::vector<Eigen::Vector2f> &k_vectors,
+                       const std::vector<float> &wavelengths,
+
+                           std::vector<Eigen::Vector3f> &verts,
+                           std::vector<Eigen::Vector2f> &ks,
+                           std::vector<float> &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<Eigen::Vector3i> &faces,
                        const std::vector<Eigen::Vector3f> &vertices,
                        const std::vector<Eigen::Vector2f> &texCoords,
-- 
cgit v1.2.3-70-g09d2