add some light and color

[blank.git] / src / model.cpp

diff --git a/src/model.cpp b/src/model.cpp
new file mode 100644 (file)
index 0000000..bbfc97f
--- /dev/null
+++ b/src/model.cpp
@@ -0,0 +1,77 @@
+#include "model.hpp"
+
+
+namespace blank {
+
+Model::Model(
+       std::vector<glm::vec3> &&vtx,
+       std::vector<glm::vec3> &&col,
+       std::vector<glm::vec3> &&norm
+)
+: vertices(vtx)
+, colors(col)
+, normals(norm)
+, handle{} {
+       glGenBuffers(ATTRIB_COUNT, handle);
+
+       glBindBuffer(GL_ARRAY_BUFFER, handle[ATTRIB_VERTEX]);
+       glBufferData(GL_ARRAY_BUFFER, vertices.size() * sizeof(glm::vec3), vertices.data(), GL_STATIC_DRAW);
+
+       glBindBuffer(GL_ARRAY_BUFFER, handle[ATTRIB_COLOR]);
+       glBufferData(GL_ARRAY_BUFFER, colors.size() * sizeof(glm::vec3), colors.data(), GL_STATIC_DRAW);
+
+       glBindBuffer(GL_ARRAY_BUFFER, handle[ATTRIB_NORMAL]);
+       glBufferData(GL_ARRAY_BUFFER, normals.size() * sizeof(glm::vec3), normals.data(), GL_STATIC_DRAW);
+}
+
+Model::~Model() {
+       glDeleteBuffers(ATTRIB_COUNT, handle);
+}
+
+
+void Model::Draw() {
+       glEnableVertexAttribArray(ATTRIB_VERTEX);
+       glBindBuffer(GL_ARRAY_BUFFER, handle[ATTRIB_VERTEX]);
+       glVertexAttribPointer(
+               ATTRIB_VERTEX, // location (for shader)
+               3,             // size
+               GL_FLOAT,      // type
+               GL_FALSE,      // normalized
+               0,             // stride
+               nullptr        // offset
+       );
+
+       glEnableVertexAttribArray(ATTRIB_COLOR);
+       glBindBuffer(GL_ARRAY_BUFFER, handle[ATTRIB_COLOR]);
+       glVertexAttribPointer(
+               ATTRIB_COLOR,  // location (for shader)
+               3,             // size
+               GL_FLOAT,      // type
+               GL_FALSE,      // normalized
+               0,             // stride
+               nullptr        // offset
+       );
+
+       glEnableVertexAttribArray(ATTRIB_NORMAL);
+       glBindBuffer(GL_ARRAY_BUFFER, handle[ATTRIB_NORMAL]);
+       glVertexAttribPointer(
+               ATTRIB_NORMAL, // location (for shader)
+               3,             // size
+               GL_FLOAT,      // type
+               GL_FALSE,      // normalized
+               0,             // stride
+               nullptr        // offset
+       );
+
+       glDrawArrays(
+               GL_TRIANGLES,   // how
+               0,              // start
+               vertices.size() // len
+       );
+
+       glDisableVertexAttribArray(ATTRIB_NORMAL);
+       glDisableVertexAttribArray(ATTRIB_COLOR);
+       glDisableVertexAttribArray(ATTRIB_VERTEX);
+}
+
+}