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+ | Basic shader

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This commit is contained in:
RedShip
2024-10-14 20:00:56 +02:00
parent eae1ae4790
commit 163828707a
6 changed files with 134 additions and 179 deletions
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31
srcs/Shader.cpp
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@ -6,7 +6,7 @@
/* By: ycontre <ycontre@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/10/13 20:21:13 by ycontre #+# #+# */
/* Updated: 2024/10/13 20:58:02 by ycontre ### ########.fr */
/* Updated: 2024/10/14 19:52:40 by ycontre ### ########.fr */
/* */
/* ************************************************************************** */
@ -102,6 +102,35 @@ void Shader::checkCompileErrors(GLuint shader)
}
}
void Shader::setupVertexBuffer(const RT::Vec2f* vertices, size_t size)
{
glGenVertexArrays(1, &_screen_VAO);
glGenBuffers(1, &_screen_VBO);
glBindVertexArray(_screen_VAO);
glBindBuffer(GL_ARRAY_BUFFER, _screen_VBO);
glBufferData(GL_ARRAY_BUFFER, size, vertices, GL_STATIC_DRAW);
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(float), (void*)0);
glEnableVertexAttribArray(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindVertexArray(0);
}
void Shader::drawTriangles(void)
{
glBindVertexArray(_screen_VAO);
glDrawArrays(GL_TRIANGLES, 0, 6);
}
void Shader::setVec2f(const std::string &name, const RT::Vec2f &value) const
{
glUniform2f(glGetUniformLocation(_program, name.c_str()), value[0], value[1]);
}
GLuint Shader::getProgram(void) const
{
return (_program);