me too

all 3d that you see is always a mapping of 3d scene to monitor screen's 2d coordinate space. but here instead of using 3d data like verticies of 3d model mesh and textures data, we use some math stuff to compute where we want to see some object and how it looks

@@RamboRamses So, to render a sphere, for example, you dont need a 3d sphere at all, you only need the vertex positions?

@@J_A_C023 if we speak about raymarching, you don't need vertex position at all. You just need mathematically calculated value of intersection point between ray from camera and some object, sphere for example. You even dont have object actually, you have some math function that describe how something intersects with ray. That something can be sphere or cube or whatever. Your task is to understand how to describe mathimatically intersection between your desired object and ray and then write this math in function in program language. One smart guy like Inigo Quilez has already written some of this functions. You can check them on his site. Just google it "iq distfunctions"

@@J_A_C023 if we speak about raymarching, we dont need vertex position at all. We just need mathimatically calculated value of intersection point between ray from camera and some object, sphere for example. I want to say that you dont manipulating objects, you manipulating mathimatical describe of how some desired object is intersecting with ray. You describe by using math stuff some function that calculate how far point on surface of desired object to point on camera's ray. And if this distance is infinitely small, we can say that ray and object intersect each other. Your task in raymarching is to understand how to describe mathimatically this distance calculation for your desired object and write it in function in program language. One smart guy like Inigo Quilez has already wrotten some functions. You can check them in his site. Just google it "iq distfunctions"

@@J_A_C023 if we speak about raymarching, you dont need any vertex position at all. You just need to describe mathimatically how far is point on some object's surface from point on camera's ray. If this distance between two points is infenitily small, we can say that surface and ray are intersecting. So your task in raymarching is to understand how to mathimatically describe this relationship between your desired object and camera's ray and then write it in function by using program language instructions. One smart guy like Inigo Quilez has already wrotten some of this functions. You can check them on his site. Just google "iq distfunctions"

Yeah I got really confused on that part