protected boolean prepare(int fbufWidth, int fbufHeight) {
if (ctx.useShader(this) && glIsProgram(program)) {
glUseProgram(program);
ctx.checkGLError("Shader.prepare useProgram");
glUniform2f(uScreenSizeLoc, fbufWidth, fbufHeight);
// ctx.checkGLError("Shader.prepare uScreenSizeLoc set to " + fbufWidth + " " + fbufHeight);
glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, elementBuffer);
ctx.checkGLError("Shader.prepare BindBuffer");
glEnableVertexAttribArray(aMatrix);
glEnableVertexAttribArray(aTranslation);
glEnableVertexAttribArray(aPosition);
if (aTexture != -1) glEnableVertexAttribArray(aTexture);
ctx.checkGLError("Shader.prepare AttribArrays enabled");
glVertexAttribPointer(aMatrix, 4, GL_FLOAT, false, VERTEX_STRIDE, 0);
glVertexAttribPointer(aTranslation, 2, GL_FLOAT, false, VERTEX_STRIDE, 16);
glVertexAttribPointer(aPosition, 2, GL_FLOAT, false, VERTEX_STRIDE, 24);
if (aTexture != -1) glVertexAttribPointer(aTexture, 2, GL_FLOAT, false, VERTEX_STRIDE, 32);
ctx.checkGLError("Shader.prepare AttribPointer");
return true;
}
return false;
}
public void render(int x, int y, float extra) {
setExtraLevel(extra);
glPushMatrix();
shader.bind();
glBindVertexArray(vao);
glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
{
glTranslatef(x, y, 0);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, texture);
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, Texture.Lava);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vio);
glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_BYTE, 0);
glActiveTexture(GL_TEXTURE1);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindTexture(GL_TEXTURE_2D, 0);
/*
* glTranslatef(x, y, 0); glBindTexture(GL_TEXTURE_2D, texture); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vio); glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_BYTE, 0); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); glBindTexture(GL_TEXTURE_2D, 0);
*/
}
glDisableVertexAttribArray(1);
glDisableVertexAttribArray(0);
glBindVertexArray(0);
shader.release();
glPopMatrix();
}
protected void compile() {
vao = glGenVertexArrays();
glBindVertexArray(vao);
{
vbo = glGenBuffers();
glBindBuffer(GL_ARRAY_BUFFER, vbo);
{
glBufferData(GL_ARRAY_BUFFER, Buffer.createFloatBuffer(vertices), GL_STATIC_DRAW);
glVertexAttribPointer(0, 3, GL_FLOAT, false, 0, 0);
}
glBindBuffer(GL_ARRAY_BUFFER, 0);
vio = glGenBuffers();
glBindBuffer(GL_ARRAY_BUFFER, vio);
{
glBufferData(GL_ARRAY_BUFFER, Buffer.createByteBuffer(indices), GL_STATIC_DRAW);
}
glBindBuffer(GL_ARRAY_BUFFER, 0);
vto = glGenBuffers();
glBindBuffer(GL_ARRAY_BUFFER, vto);
{
glBufferData(GL_ARRAY_BUFFER, Buffer.createByteBuffer(texCoords), GL_STATIC_DRAW);
glVertexAttribPointer(1, 3, GL_UNSIGNED_BYTE, false, 0, 1);
}
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
glBindVertexArray(0);
}
protected void compile() {
vao = glGenVertexArrays();
glBindVertexArray(vao);
{
vbo = glGenBuffers();
glBindBuffer(GL_ARRAY_BUFFER, vbo);
{
glBufferData(GL_ARRAY_BUFFER, Buffer.createFloatBuffer(vertices), GL_STATIC_DRAW);
glVertexAttribPointer(0, 3, GL_FLOAT, false, 0, 0);
}
glBindBuffer(GL_ARRAY_BUFFER, 0);
vio = glGenBuffers();
glBindBuffer(GL_ARRAY_BUFFER, vio);
{
glBufferData(GL_ARRAY_BUFFER, Buffer.createByteBuffer(indices), GL_STATIC_DRAW);
}
glBindBuffer(GL_ARRAY_BUFFER, 0);
vto = glGenBuffers();
glBindBuffer(GL_ARRAY_BUFFER, vto);
{
glBufferData(GL_ARRAY_BUFFER, Buffer.createByteBuffer(texCoords), GL_STATIC_DRAW);
glVertexAttribPointer(1, 3, GL_UNSIGNED_BYTE, false, 0, 1);
}
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
glBindVertexArray(0);
glActiveTexture(GL_TEXTURE1);
shader.bind();
int uniform = glGetUniformLocation(shader.getID(), "texture");
glUniform1i(uniform, 1);
shader.release();
}
public void render() {
glPushMatrix();
glEnable(GL_BLEND);
shader.bind();
glBindVertexArray(vao);
glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
{
glTranslatef(x, y, 0);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, texture);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vio);
glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_BYTE, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindTexture(GL_TEXTURE_2D, 0);
}
glDisableVertexAttribArray(1);
glDisableVertexAttribArray(0);
glBindVertexArray(0);
shader.release();
glDisable(GL_BLEND);
glPopMatrix();
}