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();
}
public static void beginWater() {
useProgram(Shaders.ProgramWater);
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, mc.renderEngine.getTexture("/terrain_nh.png"));
glActiveTexture(GL_TEXTURE3);
glBindTexture(GL_TEXTURE_2D, mc.renderEngine.getTexture("/terrain_s.png"));
glActiveTexture(GL_TEXTURE0);
}
public static void beginTerrain() {
useProgram(Shaders.ProgramTerrain);
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, mc.renderEngine.getTexture("/terrain_nh.png"));
glActiveTexture(GL_TEXTURE3);
glBindTexture(GL_TEXTURE_2D, mc.renderEngine.getTexture("/terrain_s.png"));
glActiveTexture(GL_TEXTURE0);
FloatBuffer projection = BufferUtils.createFloatBuffer(16);
}
private static void setupShadowRenderTexture() {
if (shadowPassInterval <= 0) {
return;
}
// depth
glDeleteTextures(sfbDepthTexture);
sfbDepthTexture = glGenTextures();
glBindTexture(GL_TEXTURE_2D, sfbDepthTexture);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
ByteBuffer buffer = ByteBuffer.allocateDirect(shadowMapWidth * shadowMapHeight * 4);
glTexImage2D(
GL_TEXTURE_2D,
0,
GL_DEPTH_COMPONENT,
shadowMapWidth,
shadowMapHeight,
0,
GL_DEPTH_COMPONENT,
GL11.GL_FLOAT,
buffer);
}
/**
* Method called by the World Class to render the Tile.
*
* @param x : location to where the Tile is going to be rendered.
* @param y : location to where the Tile is going to be rendered.
* @param w : instance of the World Class
* @param ent : List of entities that emit light.
*/
public void render(int x, int y, World w, ArrayList<Entity> ent) {
// Binding the Uniforms to make the light effects.
bindUniforms(w, ent);
// Setting up OpenGL for render
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ZERO);
// Updating the Tile coordinates.
this.x = x;
this.y = y;
glTranslatef(x, y, 0);
// Activating and Binding the Tile Texture.
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, this.tex);
// Sending the texture to the shader.
glUniform1i(glGetUniformLocation(shade.getShader(), "texture"), 0);
// Drawing the QUAD.
glBegin(GL_QUADS);
{
glTexCoord2f(0, 0);
glVertex2f(0, 0);
glTexCoord2f(0, 1);
glVertex2f(0, this.height);
glTexCoord2f(1, 1);
glVertex2f(this.width, this.height);
glTexCoord2f(1, 0);
glVertex2f(this.width, 0);
}
glEnd();
// Releasing the Texture.
glBindTexture(GL_TEXTURE_2D, 0);
// Getting the location back to the inicial coordinates.
glTranslatef(-x, -y, 0);
// Disabling BLEND and releasing shader for next render.
glDisable(GL_BLEND);
shade.release();
glClear(GL_STENCIL_BUFFER_BIT);
}
private static TextureResource loadTexture(String fileName) {
String[] splitArray = fileName.split("\\.");
String ext = splitArray[splitArray.length - 1];
try {
BufferedImage image = ImageIO.read(new File("./res/textures/" + fileName));
int[] pixels =
image.getRGB(0, 0, image.getWidth(), image.getHeight(), null, 0, image.getWidth());
ByteBuffer buffer = Util.createByteBuffer(image.getHeight() * image.getWidth() * 4);
boolean hasAlpha = image.getColorModel().hasAlpha();
for (int y = 0; y < image.getHeight(); y++) {
for (int x = 0; x < image.getWidth(); x++) {
int pixel = pixels[y * image.getWidth() + x];
buffer.put((byte) ((pixel >> 16) & 0xFF));
buffer.put((byte) ((pixel >> 8) & 0xFF));
buffer.put((byte) ((pixel) & 0xFF));
if (hasAlpha) buffer.put((byte) ((pixel >> 24) & 0xFF));
else buffer.put((byte) (0xFF));
}
}
buffer.flip();
TextureResource resource = new TextureResource();
glBindTexture(GL_TEXTURE_2D, resource.getId());
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage2D(
GL_TEXTURE_2D,
0,
GL_RGBA8,
image.getWidth(),
image.getHeight(),
0,
GL_RGBA,
GL_UNSIGNED_BYTE,
buffer);
return resource;
} catch (Exception e) {
e.printStackTrace();
System.exit(1);
}
return null;
}
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();
}
private static void setupRenderTextures() {
glDeleteTextures(dfbTextures);
glGenTextures(dfbTextures);
for (int i = 0; i < colorAttachments; ++i) {
glBindTexture(GL_TEXTURE_2D, dfbTextures.get(i));
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
if (i == 1) { // depth buffer
ByteBuffer buffer = ByteBuffer.allocateDirect(renderWidth * renderHeight * 4 * 4);
glTexImage2D(
GL_TEXTURE_2D,
0,
GL_RGB32F_ARB,
renderWidth,
renderHeight,
0,
GL_RGBA,
GL11.GL_FLOAT,
buffer);
} else {
ByteBuffer buffer = ByteBuffer.allocateDirect(renderWidth * renderHeight * 4);
glTexImage2D(
GL_TEXTURE_2D,
0,
GL_RGBA,
renderWidth,
renderHeight,
0,
GL_RGBA,
GL_UNSIGNED_BYTE,
buffer);
}
}
}
public void bind(int samplerSlot) {
assert (samplerSlot >= 0 && samplerSlot <= 31);
glActiveTexture(GL_TEXTURE0 + samplerSlot);
glBindTexture(GL_TEXTURE_2D, resource.getId());
}
@Override
public void flush() {
glBindTexture(GL_TEXTURE_2D, lastTex);
super.flush();
}
public static void endRender() {
if (isShadowPass) {
return;
}
glPushMatrix();
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0.0f, 1.0f, 0.0f, 1.0f, 0.0f, 1.0f);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glDisable(GL_DEPTH_TEST);
glEnable(GL_TEXTURE_2D);
// composite
glDisable(GL_BLEND);
useProgram(ProgramComposite);
glDrawBuffers(dfbDrawBuffers);
glBindTexture(GL_TEXTURE_2D, dfbTextures.get(0));
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, dfbTextures.get(1));
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, dfbTextures.get(2));
glActiveTexture(GL_TEXTURE3);
glBindTexture(GL_TEXTURE_2D, dfbTextures.get(3));
if (colorAttachments >= 5) {
glActiveTexture(GL_TEXTURE4);
glBindTexture(GL_TEXTURE_2D, dfbTextures.get(4));
if (colorAttachments >= 6) {
glActiveTexture(GL_TEXTURE5);
glBindTexture(GL_TEXTURE_2D, dfbTextures.get(5));
if (colorAttachments >= 7) {
glActiveTexture(GL_TEXTURE6);
glBindTexture(GL_TEXTURE_2D, dfbTextures.get(6));
}
}
}
if (shadowPassInterval > 0) {
glActiveTexture(GL_TEXTURE7);
glBindTexture(GL_TEXTURE_2D, sfbDepthTexture);
}
glActiveTexture(GL_TEXTURE0);
glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 0.0f);
glVertex3f(0.0f, 0.0f, 0.0f);
glTexCoord2f(1.0f, 0.0f);
glVertex3f(1.0f, 0.0f, 0.0f);
glTexCoord2f(1.0f, 1.0f);
glVertex3f(1.0f, 1.0f, 0.0f);
glTexCoord2f(0.0f, 1.0f);
glVertex3f(0.0f, 1.0f, 0.0f);
glEnd();
// final
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
useProgram(ProgramFinal);
glClearColor(clearColor[0], clearColor[1], clearColor[2], 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glBindTexture(GL_TEXTURE_2D, dfbTextures.get(0));
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, dfbTextures.get(1));
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, dfbTextures.get(2));
glActiveTexture(GL_TEXTURE3);
glBindTexture(GL_TEXTURE_2D, dfbTextures.get(3));
if (colorAttachments >= 5) {
glActiveTexture(GL_TEXTURE4);
glBindTexture(GL_TEXTURE_2D, dfbTextures.get(4));
if (colorAttachments >= 6) {
glActiveTexture(GL_TEXTURE5);
glBindTexture(GL_TEXTURE_2D, dfbTextures.get(5));
if (colorAttachments >= 7) {
glActiveTexture(GL_TEXTURE6);
glBindTexture(GL_TEXTURE_2D, dfbTextures.get(6));
}
}
}
if (shadowPassInterval > 0) {
glActiveTexture(GL_TEXTURE7);
glBindTexture(GL_TEXTURE_2D, sfbDepthTexture);
}
glActiveTexture(GL_TEXTURE0);
glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 0.0f);
glVertex3f(0.0f, 0.0f, 0.0f);
glTexCoord2f(1.0f, 0.0f);
glVertex3f(1.0f, 0.0f, 0.0f);
glTexCoord2f(1.0f, 1.0f);
glVertex3f(1.0f, 1.0f, 0.0f);
glTexCoord2f(0.0f, 1.0f);
glVertex3f(0.0f, 1.0f, 0.0f);
glEnd();
glEnable(GL_BLEND);
glPopMatrix();
useProgram(ProgramNone);
}
