void RendererOpenGL::test() {
glClearColor(0.2f, 0.3f, 0.3f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
Texture* debugt = Locator::getLibraryTexture()->get("debug");
Texture* errort = Locator::getLibraryTexture()->get("error");
Shader* debugs = Locator::getLibraryShader()->get("basic-new");
debugt->bind();
debugs->Use();
drawQuadFull(500, 200, 1, 100, 100, debugs, debugt);
drawQuadFull(550, 250, 2, 100, 100, debugs, debugt);
drawQuadFull(200, 200, 2, 100, 100, debugs, debugt);
drawQuadFull(250, 250, 1, 100, 100, debugs, debugt);
//Still draws them in order of calling
}
//Just passes the correct texture coordinates so it will draw the whole texture
void RendererOpenGL::drawQuadFull(int x, int y, int z, int width, int height, Shader* shader, Texture* texture, float rotation) {
drawQuad(x, y, z, width, height, shader, texture, fullQuadDraw_, rotation);
}
void RendererOpenGL::drawQuad(int x, int y, int z, int width, int height, Shader* shader, Texture* texture, float tc[8], float rotation) {
glm::mat4 model;
// Translate into place
model = glm::translate(model, glm::vec3(x, y, z));
// Fix non square rotation
float diff = 0.0f;
float rot = rotation;
model = glm::translate(model, glm::vec3(width / 2, height / 2, 0.0f));
model = glm::rotate(model, glm::radians(rot), glm::vec3(0.0f, 0.0f, 1.0f));
model = glm::translate(model, glm::vec3(((-width / 2)), (-height / 2), 0.0f));
model = glm::scale(model, glm::vec3(width, height, 1.0f));
glUniformMatrix4fv(glGetUniformLocation(shader->Program, "model"), 1, GL_FALSE, glm::value_ptr(model));
glUniformMatrix4fv(glGetUniformLocation(shader->Program, "projection"), 1, GL_FALSE, glm::value_ptr(projection_));
glUniform2fv(glGetUniformLocation(shader->Program, "textureCoordinates"), 4, tc);
glUniform4f(glGetUniformLocation(shader->Program, "color"), 1.0f, 1.0f, 1.0f, 1.0f);
glUniform1i(glGetUniformLocation(shader->Program, "fragTexture"), 0);
glBindBuffer(GL_ARRAY_BUFFER, quadVBO_);
glBufferData(GL_ARRAY_BUFFER, sizeof(GLfloat) * 12, vertices_, GL_STATIC_DRAW);
// Position attribute
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(GLfloat), (GLvoid*)0);
glEnableVertexAttribArray(0);
glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
}
///////////////////////// Vertex Shader
#version 330 core
layout (location = 0) in vec3 position;
out vec4 fColor;
out vec2 fCoord;
uniform mat4 model;
uniform mat4 projection;
uniform vec4 color;
uniform vec2 textureCoordinates[4];
void main()
{
gl_Position = projection * model * vec4(position, 1.0f);
fColor = color;
fCoord = vec2(1 - textureCoordinates[gl_VertexID].x, 1 - textureCoordinates[gl_VertexID].y);
}
