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);
}
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);
}
}
}