62 lines
2.2 KiB
C++
62 lines
2.2 KiB
C++
#include "flame.hh"
|
|
|
|
Flame::Flame(glm::vec3 position, glm::vec3 color, glm::vec3 size) :
|
|
Entity(position, glm::vec3(0.0f, 0.0f, 0.0f)) {
|
|
this->color = color;
|
|
this->size = size;
|
|
float flameData[6] = {};
|
|
flameData[0] = position.x;
|
|
flameData[1] = position.y;
|
|
flameData[2] = position.z;
|
|
flameData[3] = color.r;
|
|
flameData[4] = color.g;
|
|
flameData[5] = color.b;
|
|
ab = SharedArrayBuffer(new ArrayBuffer());
|
|
ab->defineAttribute("aPosition", GL_FLOAT, 3);
|
|
ab->defineAttribute("aColor", GL_FLOAT, 3);
|
|
vao = SharedVertexArrayObject(new VertexArrayObject());
|
|
vao->setMode(GL_POINTS);
|
|
vao->attachAllAttributes(ab);
|
|
ab->setDataElements(1, flameData);
|
|
}
|
|
|
|
Flame::Flame() {
|
|
}
|
|
|
|
void Flame::render(SharedShaderProgram shader, glm::mat4 viewProjectionMatrix, float time,
|
|
bool withColor, glm::vec2 skewing) {
|
|
glm::mat4 modelMatrix;
|
|
// matrix is column major
|
|
glm::mat4 skewMatrixX =
|
|
glm::mat4(1.0f, tan(skewing.x), 0.0f, 0.0f,
|
|
0.0f, 1.0f, 0.0f, 0.0f,
|
|
0.0f, 0.0f, 1.0f, 0.0f,
|
|
0.0f, 0.0f, 0.0f, 1.0f);
|
|
glm::mat4 skewMatrixZ =
|
|
glm::mat4(1.0f, 0.0f, 0.0f, 0.0f,
|
|
0.0f, 1.0f, 0.0f, 0.0f,
|
|
0.0f, tan(skewing.y), 1.0f, 0.0f,
|
|
0.0f, 0.0f, 0.0f, 1.0f);
|
|
if (!withColor) {
|
|
modelMatrix = skewMatrixX * skewMatrixZ * glm::scale<float>(size * glm::vec3(1.1f));
|
|
}
|
|
else {
|
|
modelMatrix = skewMatrixX * skewMatrixZ * glm::scale<float>(size);
|
|
}
|
|
glm::mat4 modelViewProjectionMatrix = viewProjectionMatrix * modelMatrix;
|
|
shader->setUniform("modelViewProjectionMatrix", modelViewProjectionMatrix);
|
|
shader->setUniform("viewProjectionMatrix", viewProjectionMatrix);
|
|
shader->setUniform("withColor", withColor);
|
|
shader->setUniform("time", time);
|
|
shader->setUniform("bottom", true);
|
|
shader->setUniform("left", true);
|
|
vao->render();
|
|
shader->setUniform("left", false);
|
|
vao->render();
|
|
shader->setUniform("bottom", false);
|
|
shader->setUniform("left", true);
|
|
vao->render();
|
|
shader->setUniform("left", false);
|
|
vao->render();
|
|
}
|