void bind() {
EXTFramebufferObject.glBindFramebufferEXT(
EXTFramebufferObject.GL_FRAMEBUFFER_EXT, frameBuffer);
GL11.glPushAttrib(glAttributes);
GL11.glViewport(x0, y0, width, height);
GL11.glEnable(GL11.GL_SCISSOR_TEST);
GL11.glScissor(x0, y0, width, height);
lightmapEnabled = false;
if (gl13Supported) {
GL13.glActiveTexture(GL13.GL_TEXTURE1);
lightmapEnabled = GL11.glIsEnabled(GL11.GL_TEXTURE_2D);
if (lightmapEnabled) {
GL11.glDisable(GL11.GL_TEXTURE_2D);
}
GL13.glActiveTexture(GL13.GL_TEXTURE0);
}
GL11.glEnable(GL11.GL_TEXTURE_2D);
GL11.glDisable(GL11.GL_DEPTH_TEST);
GLAPI.glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
GL11.glDisable(GL11.GL_LIGHTING);
GL11.glEnable(GL11.GL_ALPHA_TEST);
GLAPI.glAlphaFunc(GL11.GL_GREATER, 0.01f);
if (useGL13) {
GL11.glDisable(GL13.GL_MULTISAMPLE);
}
GLAPI.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
GL11.glClear(GL11.GL_COLOR_BUFFER_BIT);
GL11.glMatrixMode(GL11.GL_PROJECTION);
GL11.glPushMatrix();
GL11.glLoadIdentity();
GL11.glOrtho(-1.0f, 1.0f, -1.0f, 1.0f, -1.0f, 1.0f);
GL11.glMatrixMode(GL11.GL_MODELVIEW);
GL11.glPushMatrix();
GL11.glLoadIdentity();
}
private void renderImpl(double angle) {
for (Layer layer : layers) {
layer.blendMethod.applyBlending();
GL11.glPushMatrix();
TexturePackAPI.bindTexture(layer.textureName);
float offsetX = layer.offsetX;
float offsetY = layer.offsetY;
float scaleX = layer.scaleX;
float scaleY = layer.scaleY;
if (layer.debug) {
offsetX += offsetXDelta;
offsetY += offsetYDelta;
scaleX += scaleXDelta;
scaleY += scaleYDelta;
}
GL11.glTranslatef(offsetX, offsetY, 0.0f);
GL11.glScalef(scaleX, scaleY, 1.0f);
float layerAngle = (float) (angle * layer.rotationMultiplier + layer.rotationOffset);
GL11.glRotatef(layerAngle, 0.0f, 0.0f, 1.0f);
GL11.glCallList(drawList);
GL11.glPopMatrix();
}
}
