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First working animations, but lots of bugs and refactoring needed.

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This commit is contained in:
Zed A. Shaw 2026-10-07 12:11:15 -04:00
parent 8b41591360
commit a1c8208b47
158 changed files with 17271 additions and 0 deletions
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73
45-animation/src/mesh.cpp Normal file
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#include "mesh.hpp"
#include "dbc.hpp"
#include "config.hpp"
void Mesh::draw(Shader &shader, bool with_textures) {
if(with_textures) {
apply_textures(shader);
}
glBindVertexArray(VAO);
glDrawElements(GL_TRIANGLES, indices.size(), GL_UNSIGNED_INT, 0);
glBindVertexArray(0);
}
void Mesh::apply_textures(const Shader& shader) {
int texture_i = 1;
bool has_height = false;
for(auto& texture : textures) {
texture.uniform_id = glGetUniformLocation(shader.ID, texture.target.c_str());
if(texture.uniform_id == -1) continue;
if(texture.target.starts_with("texture_height")) {
has_height = true;
}
glActiveTexture(GL_TEXTURE0 + texture_i);
glBindTexture(GL_TEXTURE_2D, texture.id);
glUniform1i(texture.uniform_id, texture_i);
texture_i++;
}
// quick hack to avoid applying height/normal to things without one
shader.setBool("hasHeight", has_height);
}
void Mesh::setup_mesh() {
glGenVertexArrays(1, &VAO);
glGenBuffers(1, &VBO);
glGenBuffers(1, &EBO);
glBindVertexArray(VAO);
glBindBuffer(GL_ARRAY_BUFFER, VBO);
glBufferData(GL_ARRAY_BUFFER, vertices.size() * sizeof(Vertex), vertices.data(), GL_STATIC_DRAW);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, indices.size() * sizeof(unsigned int), indices.data(), GL_STATIC_DRAW);
// this matches the locations in the vertex shader
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void*)offsetof(Vertex, position));
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void*)offsetof(Vertex, normal));
glEnableVertexAttribArray(2);
glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void*)offsetof(Vertex, tex_coords));
glEnableVertexAttribArray(3);
glVertexAttribPointer(3, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void*)offsetof(Vertex, tangent));
glEnableVertexAttribArray(4);
glVertexAttribPointer(4, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void*)offsetof(Vertex, bitangent));
// bone ids
glEnableVertexAttribArray(5);
glVertexAttribIPointer(5, 4, GL_INT, sizeof(Vertex), (void*)offsetof(Vertex, bone_ids));
// bone weights
glEnableVertexAttribArray(6);
glVertexAttribPointer(6, 4, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void*)offsetof(Vertex, weights));
}