CODEWITHSUNDEEP
javaopengllwjgl
user1744024
user1744024

Reputation: 21

Is there a GLfloat inside lwjgl?

Is there any alternative to GLfloat in lwjgl? There are many sources for OpenGL which use GLfloat. Is GLfloat even necessary in lwjgl? Can't I just replace it with a regular float?

Upvotes: 2

Views: 2523

Answers (2)

Abstraction is everything.
Abstraction is everything.

Reputation: 250

you must use the lwjgl utilities to create a float buffer in place of the glfloat array. located in this import. import org.lwjgl.BufferUtils;

for example:

lightPos = BufferUtils.createFloatBuffer(4);
lightPos.put(1).put(1).put(3).put(0).flip();
difuseLight = BufferUtils.createFloatBuffer(4);
difuseLight.put(10.0f).put(10.0f).put(10.0f).put(1.0f).flip();
ambientLight = BufferUtils.createFloatBuffer(4);
ambientLight.put(.75f).put(.75f).put(.75f).put(1).flip();
glEnable(GL_DEPTH_TEST);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glLight(GL_LIGHT0, GL_LIGHT_MODEL_AMBIENT, ambientLight);
glLight(GL_LIGHT0, GL_SPECULAR, difuseLight);

Upvotes: 0

Thomas
Thomas

Reputation: 182093

In Java, it's just a plain old Java float, and you don't have any need for GLfloat at all. All APIs in lwjgl are defined in terms of the Java primitive type float.

(In all C implementations that I know of, GLfloat is just plain old float as well.)

Upvotes: 2

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