CODEWITHSUNDEEP
androidopengl-es3d
MRSGT _GT
MRSGT _GT

Reputation: 256

Drawing a 3d object inside a 3d object using java opengl1.0 for android

I have a 3D cube created using GL_TRIANGLE_STRIP.Is it possible to draw points(using GL_POINTS) or a triangle (using GL_TRIANGLE) on/inside my 3D Cube?How could that be achieved?

Upvotes: 0

Views: 516

Answers (1)

pmr
pmr

Reputation: 59811

If you want to draw something directly of the face of another object (by using the exact same vertex coordinates), you will need to use glPolygonOffset to prevent stitching. There is a chapter in the Red Book that explains it.

If by inside you mean to draw something in the volume of the cube, than there is nothing stopping you. You just need to get the alpha values and blending right to actually see through the cube. Look for some generic tutorial on transparency in OpenGL.

But maybe I'm horribly mistaken and what you are looking for a textures.

If I understand you correctly you could just generate the appropriate texture with the points and apply it to the cube.

Upvotes: 2

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